FOREWORD FIND TABLE OF CONTENTS ON LAST PAGE

The Tomato Genetics Cooperative is a group of workers who have a common interest in tomato genetics and who are organized informally for the purpose of exchanging information and stocks. Participation is voluntary, and costs of activities are met by assessments to members.

As of December 31, 1976, TGC membership stood at 333 (162 U.S. and 171

from other countries) and the financial balance was $1251.54. The 1976 annual meeting was held in conjunction with the Tomato Breeders

Round Table at Indianapolis, Indiana on February 12. Minutes appear below. The 1977 meeting is again scheduled with the TBRT at their sessions in

Toronto. In addition to the usual sections, this Report includes a report of the

Linkage Committee with newly revised linkage maps. One cannot read this report without realizing the urgent need for more cooperators to participate in this important effort. Anyone wishing to participate should contact Len Butler. This Report also presents a revised membership list.

The Tomato Genetics Stock Center has been formed at Davis in response to a growing need to inventory and maintain stocks of interest to research workers in many fields. A statement concerning the Center appears below, and a list of available tomato species accessions is presented as part of the exchange stocks section.

It would be impossible to issue these TGC Reports without the willing and talented help of many friends. Dora Hunt again assumed full responsibility for memberships, financial accounts, and the managing and editing of this Report. Betty Perry, assisted by Terry Spear, typed the master copies, and Steve Tanksley aided in proof reading. To them and many other dedicated assistants who helped with TGC 27, we express our deep appreciation.

MINUTES OF THE ANNUAL MEETING

The meeting was held in conjunction with the Tomato Breeders Round Table at Indianapolis, Indiana on February 12, 1976. Vital statistics of the TGC, provided by Ms. Dora Hunt, were presented. The TGC is truly an international organization. The paid up membership of 318 is almost equally divided between Americans and workers in other countries, 153 being from the U.S. and 165 from other countries. Among these other countries, Italy has the most members with 16, Canada is next with 14, then Japan with 13. The TGC is in sound financial shape with a balance on December 31, 1975 of $1139.06, comparing favorably with the balance of $966.49 a year previously.

More than 50 tomato breeders attended the TGC meeting, but not all of them were familiar with TGC activities related to tomato breeding. Breeders were urged to disclose pedigrees of tomato cultivars to Vic Lambeth so this useful information could be published in the TGC Reports. Mention was made of the scientific notes in the TGC Report that pertain to applied breeding as well as to basic genetics of the tomato. Other features of the TGC Report cited as valuable to tomato breeders were the bibliography of papers on tomato genetics and breeding, the lists of available and desired stocks, and the periodical listing of all tomato genes and source of seed for each mutant.

R. W. Robinson Secretary pro tem.

TOMATO GENETICS STOCK CENTER

The National Science Foundation awarded a grant to CMR for the support of a Tomato Genetics Stock Center comparable to those in existence for barley and maize. According to its terms, NSF expressed a willingness to assist in financing the Center for three years, starting July 1, 1976 and subject to annual renewal negotiations. It is intended to defray costs of renewing, maintaining, and disseminating stocks of species and genetic and chromosomal lines. The grant will also pay pro-rata costs of publishing information re the TGSC and lists of stocks available in TGC Reports. The first installment, appearing in this Report, is the list of available species accessions. Sufficient viable seeds of these accessions have been produced to permit distribution of samples to interested investigators.

As to its next undertaking, the TGSC will canvas members for items needed to round out its collection of genetic and cytogenetic stocks. Lists of these items will be issued in forthcoming TGC Reports. We do not visualize duplication of the PI collection to any significant extent; rather, it is our obligation to act as stockkeepers of those genetic, chromosomal, and species collections that require special care and expertise for their maintenance. We visualize the collection being maintained under the auspices of the TGC and shall rely on that organization for counsel and other assistance.

C. M. Rick

LINKAGE SUMMARY The last summary, with an interim revision of the linkage maps, was

issued in TGC 23:9, 11. The following reports have been received from linkage cooperators:

Chromosome 1 - Zobel. No Report. Chromosome 2 - Butler. See Research note, this report. Chromosome 3 - Whalen. I do not have any changes since the last map which

appeared in TGC 23 (1973), except that ful-3 and pdc should be added to this chromosome. ful-3 is on 3S to the left of sy (TGC 24: 7); pdc is also in this region about 31 crossover units to the left of sy (TGC 24: 23). I have a couple of other additions to the map for other chromosomes. Although they aren't for my assigned chromosome, I mentioned them anyway because they are genes I mapped myself but didn't get included on the previous map. (See chromosomes 8, 9.) Rick et al, (TGC 24: 23, 1974) report mcn as lying to the left of sy on 3S.

Chromosome 4 - Rick. We have been carrying the responsibility for this

chromosome since the departure of Dr. Khush. Although our program with 4 has not been very active, we have added a new locus - Got-1 - during this period. Got-1, the closest locus to the anodal front, is very closely linked with ful and ra in the pericentric region of 4. According to our present data, the locus of Got-1 is closer to that of ful than ra. We hope to run tests soon to place the locus more precisely.

Chromosome 5 - Reeves. Since I took the responsibility of chromosome 5, I have moved to a new position in Maine. Here I am mainly concerned with potato breeding and have not had much time for tomatoes. I hope to get more tomato linkage work done next year. In the meantime, I have no report, but Dick Whalen at South Dakota has been doing some work with these markers and should have something to report.

Chromosome 6 and 7 - Not assigned. Chromosome 8 - Rick. Since the data from our recent tests are mostly from

F2's, they are not very precise about distances, but they are consistent with the latest map. We keep searching for markers to bridge the large gaps in 8L. Our standard tester for this chromosome has been improved by substituting ae for al in a new stock (LA1666) of 1 - bu - dl - ae.

The new stock is more useful because ae, in contrast to al, can be classified in all stages of development. Our reports on the addition of three new loci (glau, spl-4, and trs) were presented in TGC 24: 7, 21, 23.

Whalen reports: Yellow green-8 (yg-8) is on chromosome 8 about 19 map units from ae; this again was a two-point test so I don't know in which direction (TGC 25: 23-24, 1975).

Chromosome 9 - Robinson. No report. Whalen reports: Yellow green-3 (yg-3) is near ah on chromosome 9 according to two point tests. Singed (sn) is on chromosome 9 about 11 map units from ah, but I don't know whether to the left or to the right as all I had was a two point test (TGC 26: 19-20, 1976). These findings should be indicated below each of the respective chromosomes even though they cannot be placed precisely on the map. (You will note that the map includes provision for such genes whose location was determined from two points or from trisomic tests.)

Chromosome 10 - Kerr. See Research note, this report. Chromosome 11 - Lachman. See Research note, this report. I guess the last

addition I have to make is documented in the enclosed paper. The id gene is very interesting and its analysis is straight forward. I am retiring this month, but I plan to continue a little of the mapping work.

Chromosome 12 - Not assigned. - The accompanying Linkage Map was prepared by C.

M. Rick from the above information, Research Notes in this and preceding TGC Reports, and from other sources. He assumes complete responsibility for any errors and would be grateful for notification of any corrections. We are indebted to Karen Murphy for the lettering.

MAP

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PART I RESEARCH NOTES

Atanassova, B. Inheritance of the com- Studies on the inheritance of the ponents connected with exserted components connected with exserted stigma in tomato F2 and backcross stigma indicated that lines 7/3 and generations. Penelopa are of considerable

interest as pollen parents partially rectifying exserted stigma in F1 - 7/3 due to the mode of style, in Penelopa, to that of the anthers (Atanassova, TGC 26,1976).

Further studies included F2 and the backcross generations of GCR-66 x Penelopa, GCR-66 x 7/3, Penelopa x L. pimpinellifolium and 7/3 x L. pimpinellifolium.

Heritability in the wider sense (H2) was estimated using the formula of Burton (1951), in the narrow sense (h2), by the formula of Warner (1952), while the estimation of K (number of effective factors) was made by Wright's formula (1952).

Data concerning anther and style length (Table 1) indicate that these characters possess high heritability (H2 varies from 82 to 91%). The inheritance of style length of 7/3 hybrids is governed predominantly by additive gene effects (h2 = 66 and 73%) which can explain the better ability of this line to rectify exserted style. The values of h2 are significantly lower in Penelopa.

Heterosis for anther length is observed in F1 of Penelopa hybrids due to which, especially in the crosses including lines and cultivars of cultivated tomatoes, exserted style is rectified to a certain extent. The inheritance of anther length in the cross GCR-66 x Penelopa is governed, as compared to other hybrids, to a much higher degree by additive gene effects. It is evident from data in Table 1 that the number of genes controlling anther length is small (12), but style length is a character which is governed by comparatively larger number of effective factors. Table 1. Inheritance of style and anther length in F2 and backcross

generations of some hybrids. Style __________ ______ Anthers

Crosses H2% h2% K H2% h2% K 1. GCR-66 x Penelopa 86 43 3,16 89 73 0,10 2. GCR-66 x 7/3 88 66 9,70 91 50 0,03 3. Penelopa x L. pimpinellifolium 84 57 2,40 90 48 0,33 4. 7/3 x L. pimpinellifolium 82 73 5,97 88 48 0,14 Avdeyev, Y. I., and B. M. Shcherbinin In southern areas 0. aegiptiaca

Tomato resistant to broomrape, infests tomatoes and decreases yield Orobanche aegiptiaca. from 15 to 60 percent. The resistant

variety UZ-1 was exposed to severe infection, 400,000 seeds of the parasite being sown per m2 (Table 1).

As a result of selection, a highly resistant homozygous line PZU-II was

obtained. As the following data reveal, resistance is determined by a single dominant gene. The monohybrid-type segregation is especially clear 45-55 days from planting in infected ground, when more than 95% of the susceptible varieties are affected and PZU-II remains unaffected (Table 2).

When plants are affected more (greater penetration), the character of

inheritance of PZU-II is retained, though some of the plants of the resistant parent are affected by parasitism by broomrape.

Table 3 shows that the proportion of infested plants is not significantly different between PZU-II and the F1 hybrids. The distributions of the two categories in Table 3 coincide, thus characterizing the full dominance of resistance. The F2's are distributed into two groups, the larger corresponding to the distribution of PZU-II and the F1 . The relation of the larger group (resistant) to the remainder of the F2 (susceptible) corresponds to the expected theoretical 3:1 (28:11:18:8) with the associated high probability (0.20, 0.50; X2 = 0.539, 0.461). In the backcross, 43 of the 83 tested plants are susceptible, closely approximating the theoretical ratio of 1:1. Taking into account that 4% (1/24) of the susceptible Volgogradsky 5/95 are in the resistant group, the corrected ratio of plants in the different families more closely fits the theoretical.

Since the evidence clearly indicates the action of a single dominant

nuclear gene, the symbol Ora is proposed for resistance to 0. aegiptiaca. Selection for resistance is based on the action of this gene.

Butler, L. Summary of gene linkage on In spite of the large amount of data chromosome 2. which has been collected in the past

four years, there are still problems in drawing up a consistent map. Some of these inconsistencies can be seen from a study of the values in Table 1. Many of these recombination values are 3 and 4 times larger than would be expected from their position on the chromosome. Many of the stocks must have either a duplication near the aw locus or a large inversion between aw and the distal end. Critical testcrosses are now being made and we should have the answer ready for the next TGC Report. The major change in position is for the gene aa which was hailed as a marker for the s region. Three-point tests place this gene on the opposite side of Me to Wo, therefore the loci of both aa and ms-10 have been changed. The other changes are to insert are near aw since it is 8 units from dil and 12 from ms-10, and to move dpy away from the aw locus. There is good evidence that v-2 is not at the p locus, in fact, it seems to map in two different positions. In most crosses it appears to be near op, but in two crosses it is definitely between m and dv. These changes have been imposed on the present map with as little other alterations as possible, the intention being to do a major revision as soon as we have the data from the present set of testcrosses. The best compromise of a map is: 30 s, 38 bk, 41 wv, 46 Wo, 48 Me, 49 Cu, 50 aa, 51 ms-10, 52 ro, 53 dil, 54 en, 55 o, 56 Lx, prun, 57 dpy, 58 are, 9 aw, 61 ps, 62 ms-15, 63 0p, 65 v-2, 66 suf, 67 p, 68 bip, 69 ms-2, 70 d, 71 m, 74 dv; unplaced dd, ms-26.

Courtney, W. H., III, and V. N. Lambeth A study was conducted to determine Glycoalkaloid content in relation the relationship between the steroi- to Fusarium resistance. dal glycoalkaloid content of tomato

plants and resistance to Fusarium oxysporum f. sp. lycopersici, race 1, following a report that root extracts of a resistant tomato isoline inhibited the in vitro growth of Fusarium mycelium twice as much as extracts from the susceptible isoline, regardless of whether the plants had been previously inoculated (Phytopathology 65:93-94, 1975). Chromatographic and bioassay data indicated that tomatine, the major tomato glycoalkaloid, was responsible for the growth inhibition.

In our study, glycoalkaloid determinations were made on the roots and shoots of the Fusarium susceptible cultivar Craigella and the resistant isoline GCR 152 (isolines provided by Dr. John Holden, Glasshouse Crops Research Institute, Littlehampton, England). Half of the plants of each isoline had previously been root-dip inoculated in a F. oxysporum f. sp. lycopersici race 1 spore suspension, while the remaining plants served as the uninoculated control.

Alkaloid concentrations in the inoculated roots and shoots were significantly greater than those in uninoculated roots and shoots (Tables 1 and 2). No significant differences occurred between the resistant and susceptible isolines. A thin-layer chromatographic study showed that tomatine was the only glycoalkaloid present in the experimental material.

It is concluded that no relationship exists between the absolute tomatine level

in a plant and wilt resistance conferred by the I allele.

Courtney, W. H., III, and V. N. Lambeth A greenhouse study was conducted to Glycoalkaloid levels in tomato compare the steroidal glycoalkaloid fruit. levels in the mature green fruit of 7

tomato lines, which represented 6 Lycopersicon species. A quantitative determination of total glycoalkaloids (TGA) was made using the method of Fitzpatrick and Osman (Amer. Potato J. 51:318-323, 1974). Samples were taken from the first 2 clusters of each plant. Fruit were harvested at maturity but before ripening had begun.

Significant differences in TGA concentrations occurred among all lines except cv. Pink Delight and 31-St-34 (Table 1). High TGA concentrations (in excess of 20 mg/100 g fresh weight) were found in 5 lines. The TGA concentrations in the second fruiting clusters of 6 lines were significantly greater than those in the respective first clusters (Table 2).

The high TGA levels observed in the wild species are noteworthy because of the

toxicity of glycoalkaloids to mammals and the usefulness of this germplasm in breeding programs. The differences in TGA concentrations found between clusters indicates the necessity for uniform sampling in future studies.

Fobes, J. F. Localization of isozyme Utilizing trisomic analysis, five loci by trisomic analysis. electrophoretic loci have been as

signed to linkage groups. The five loci are Prx-2, Prx-4, Prx-7 (Rick & Fobes, TGC #26), Aps-1, and Est-l (Fobes & Rick, TGC #26).

Mutant alleles at each locus were selected and crossed to the complete tomato trisomic series. For each locus, the entire set of trisomic Fl's (expected ratio 1 +/+/a : 11 +/a) were phenotypically identified and backcrossed to the mutant parent Diploid testcross progenies from each trisomic Fl were then tested electrophoretically to determine segregation ratios. Determinations of dosage effects, if any, were also made at this point. Expected trisomic testcross ratios were as follows:

(a) If locus is located on the chromosome, the expected genotypic ratio in the diploid testcross progeny is 2 +/a : 1 a/a.

(b) If locus is not located on the chromosome, the-expected genotypic ratio in the diploid testcross progeny is 1 +/a : 1 a/a.

Results for each locus are presented in Table 1. Chromosome designations were obvious for each locus as, in each case, the segregation for only one chromosome fit a 2:1 ratio. The disomic ratios for the remaining chromosomes were lumped together for ease of presentation. Some of them are amazingly close to the expected 1:1 ratio (see particularly Prx-2 and Est-1).

Kerr,Betty Lou, E. A. Kerr, Z. A. In response to a request for tomato Patrick and J. W. Potter A new lines having resistance to leaf mold gene for resistance to Cladospo- and nematodes, R. E. Young supplied rium fulvum. us with a number of lines with com

plex ancestry. They were considered to have resistance to C. fulvum from Waltham Mold-Proof Forcing and to nematodes from Hawaii 7176. When 2 or 3 plants of each line were tested with C. fulvum race 10, all except one plant of Mass #2 were susceptible. Susceptibility was expected as the Cf-4 resistance of Waltham Mold-Proof Forcing is not effective against race 10. The exceptional plant proved to be resistant to nematodes but susceptible to C. fulvum race 12. This indicated that it was not an accidental mixture from our other breeding material. We assumed it was Cf-2 - Mi and used it in linkage tests. In August 1974, under high temperature conditions inoculation with race 10 produced small chlorotic flecks on Mass #2 but no evidence of infection on Vetomold or Indian River. This suggested that it was either an allele of Cf-2 or a new gene.

F2 and BC tests with a marker containing c gave the following results:

There appears to be a loose linkage between c and this gene for leaf mold

resistance. However, the data are not extensive and some plants may have been scored wrongly. It is not close to Mi. If it is on chromosome 6 it must be at the extreme end of the long arm.

We are elucidating the interrelationships of several genes which give resistance to race 12. It is planned to assign numbers to them and this new gene shortly.

Kerr,Betty Lou, E. A. Kerr, Z. A. Langford (Can. J. Research, C, Patrick and J. W. Potter Linkage 15:108-128. 1937) found 43% cross relationships of Mi and Cf-2. ing-over between Cf-2 and c. His

data also show 43% crossing-over be tween Cf-2 and j. Gilbert (TGC 10:1617. 1960) reported 39 to 47% crossing-over between Mi and c and established the linear order c - m-2 - Mi. The latest chromosome map (TGC 23:11. 1973) lists the genes relevant to this note as follows: Cf-2 - 3 - Mi - 34 - m-2 - 24 c.

We developed a true-breeding line designated BB11, with nematode resistance Mi derived from Anahu and leaf mold resistance Cf-2 from Indian River. As a High School Biology project the senior author produced and tested the following backcross populations: Mi Cf-2 x gra hp d c h BC and Mi Cf-2 x rvt c m-2 h BC. Data for the genes on chromosome 6 are as follows:

These data confirm that Mi and Cf-2 are near each other on the same side of c

but indicate that the order on the linkage map should be reversed. The Mi and Cf2 data with m-2 are considered more reliable than those with c even though based on fewer numbers. Comparison of numbers of single and double crossovers that resulted from the two possible orders of Mi and Cf-2 confirmed the order Mi - Cf-2 - m-2. The revised map for these genes should be approximately as follows:

Tests with the genes Mi, Cf--2 and yv are planned.

Kerr,E. A. Linkage of at - apricot and Tomes, Erickson and Barman (TGC mc - macrocalyx. 16:38) found a suggestion of linkage

between ogc and at. Wann, Hills and King (TGC 16:39) reported that ogc has an effect on lycopene content in the presence of homozygous at and incomplete dominance and overlapping of beta-carotene content in progenies from this cross. This might account for the suggested linkage. Kerr (TGC 17:31) as a result of a test in repulsion phase, reported no linkage of at with wf, mc, ist, gf, u, h or a but suggestions of linkage with gs and e.

In 1975 and again in 1976 the following cross was grown : at, y, d, mc, gs X yg-2, wf, c, sp, m-2, u, a. No linkage of at was detected with y, d, gs, wf, c, sp, m-2, u or a. The at - mc data were ++137, +mc 24, at +35, at mc 21. This indicated that at and mc are about 34 units apart on chromosome 5.

Since c and sp are very close to ogc, and m-2 is about 25 units away on chromosome 6, it appears that the previous suggestion of linkage b at and og-2 was not valid. The suggested linkage with a reported in TGC 17 was attributable primarily to a deficiency of the double recessive and probably was also not valid.

Kerr,E. A. Summary of gene linkage on Additional data have been obtained chromosome 10. since linkages were summarized in TGC

23 :20-21. As in the past, different- tial germination and survival have frequently given abnormal ratios. In the accompanying table a question mark is included if populations were very small or the combined data seemed irregular. In spite of these precautions there are a number of places where the order and distances are inconsistent. Further work is needed in Xa3-icn, oli-Xa-ten and nd-res regions.

ten was reported by Reeves et al (TGC 16:23-27) to be linked with h at 26 units. Tests in repulsion with hy u and ag all gave over 43% crossovers. I obtained linkage of 20 crossovers with oli. These data suggest that ten is probably between h and oli.

Three-point tests indicate the orders. hy-u-icn-h and u-Xa-3 are correct. The following map seems to fit the data fairly well.

Kerr,E. A., and L. V. Busch A sug- In TGC 25:10 we reported data which gestion of linkage between Ve and indicated that Ve, Verticillium re- alb. sistance, was not linked with ful-e-di on chromosome 4. In 1976 a small population of 75 backcross plants of Ve

(Veemore) x alb e al was tested. Unfortunately a clear-cut segregation of Ve and + plants was not obtained; the plants could be scored only as resistant and questionably susceptible. However, the results were as follows: Ve + 21, Ve alb 10, +? + 19, +? alb 25. This suggests that Ve and alb are linked and separated by about 39 units. There was no suggestion of linkage with e or al. Further tests of Ve with alb and alb-aud are planned.

Phills, B. R., R. Provvidenti, and R. W. Cucumber mosaic virus (CMV) is fre- Robinson Reaction of Solanum Tyco- quently the most serious virus di- persicoides to vital diseases of sease of tomatoes in New York. Pre- the tomato. vious tests at Geneva, New York have

failed to find a source of resistance to CMV in the tomato, Lycopersicon species, or in Solanum pennellii. Tests were

therefore made with a more remote relative to the tomato, Solanum lycopersi-coides. CMV-inoculated plants of S. lycopersicoides did not develop any symptoms of infection.

The intergeneric hybrid with the tomato grew normally after inoculation, exhibiting only a sparce, transitory mottle without the severe stunting and leaf distortion of inoculated tomato plants. A natural epiphytotic of CMV in the field severely damaged over 50% of the tomato plants, but S. lycopersicoides and (L. esculentum x S. lycopersicoides) F1 plants in the same field grew very vigorously and displayed no symptoms.

Recovery tests, using Chenopodium quinoa and Cucurbita pepo as indicator plants, revealed that S. lycopersicoides is a symptomless carrier of CMV. Although inoculated plants were symptomless, they harbored a high titre of CMV. Also, some plants produced from cuttings of the intergeneric hybrid plants in the field developed prominant CMV symptoms in the greenhouse, indicating that F1 plants in the field were infected but symptomless.

S. lycopersicoides was previously reported by C. M. Rick to be resistant to tobacco mosaic virus (TMV). Our tests confirmed that S. lycopersicoides does not develop symptoms after inoculation with TMV, and the F1 developed only slight symptoms, but both were systemically infected with the virus.

S. lycopersicoides was also shown to have a partially dominant gene(s) for symptomless reaction, but not immunity, to tobacco etch virus (TEV) and potato virus Y (PVY).

Phills, B. R., R. W. Robinson and J. W. Early blight tests were made, both in Shail Evaluation of Solanum Tyco- the greenhouse with controlled ino- persicoides for resistance to fun- culations in mist chambers and in the gal disease and nematodes. field with natural infection, to evaluate

possible sources of resistance. The best early blight tolerance found in L. esculentum was Barksdale's C-1943 line. The only higher level of resistance found was Solanum lycopersi-coides. The F1 of this species crossed with the very susceptible cultivar 'New

Yorker' was also highly resistant, indicating that the high level of early blight resistance in S. lycopersicoides is dominant.

S. lycopersicoides was also found to be highly resistant to both race 1 and race 2 of fusarium wilt. This resistance was dominant as indicated by the lack of disease symptoms on (L. esculentum x S. lycopersicoides) Fl plants. The resistance level in S. lycopersicoides and the F hybrid was comparable to that of MH-l. 1

Other tests demonstrated that S. lycopersicoides is completely susceptible to race 0 of late blight. This susceptibility was recessive to the resistance conferred to the F1 by the Ph-1 gene of the 'New Yorker'. S. lycopersicoides was also found to be susceptible to buckeye rot, Botrytis cinerea, and grey leaf spot.

S. lycopersicoides is also susceptible to nematodes. Tests of the species and its hybrid with the tomato showed that both are susceptible to Meloidogyne incognita, M. javanica, and M. hapla.

Rao, Panuganti N, and R. N. Rao In one of the γ ray treated (30Kr)

Abnormal meiosis in tomato. plants of the tomato variety 'Marglobe', abnormal meiosis was observed. Until the mid-diakinesis to metaphase, dissociation of some of the bivalents into univalents as well as congregation of chromosomes into chromatin clumps were observed. The clumps were more or less circular, oval or irregular in outline and the individuality of the chromosomes or the bivalents is completely lost. The clumps were of various sizes and dispersed throughout the cytoplasm. They varied in number from 1 to as many as 14. Typical metaphase I figures were not found in any of the cells. As the stage is transformed to anaphase I, this stickiness of chromosomes apparently gave away gradually and the meiosis reverts to more or less normal condition, and in many cells anaphase I is apparently normal although chromosomes grouping into several masses at either pole was still persistent. However, the stickiness was much less intense, compared to metaphase I, and the ends of the individual chromosomes in a mass could always be discerned at this stage. At anaphase I, irregular separation of chromosomes, laggards and fragments was frequently observed. After this stage, however, no further abnormalities, other than those already encountered, were found in meiosis. Thus metaphase I was the most affected stage during meiosis. This phenomenon of clumping of chromosomes is somewhat similar, though not identical, to the manifestations of the sticky gene in maize. There was reduction in pollen fertility and seed set. Cytological studies of the selfed progenies of this plant are underway to understand the possible modes of genetic control of this phenomenon.

Rao, Panuganti N. and R. N. Rao Seeds of a tomato variety 'Marglobe' Behavior of a fragment chromosome were subjected to y ray treatment. in tomato. In a cytological check of meiosis,

for detecting chromosome abnormalities, in the treated generation, one of the plants was found to contain a fragment chromosome in 40 Kr treatment. This plant was indistinguishable morphologically from the other plants in the treatment or from control plants. The fragment was short and a study of its morphology at pachytene, from a few rare cells in which the fragment was found thrown off from the rest of the complement, showed that it is centric, with two short heterochromatic segments flanking the centromere and a very short euchromatic segment in one of the arms. The fragment did not show pairing affinities with any of the chromosomes of the regular complement, and it always remained as an univalent. At anaphase I, it frequently occurred as a dividing laggard, and it was sometimes included in either pole, divided or undivided. In some cells at anaphase I, irregularities occurred in chromosomes of the normal complement. Such irregularities were not observed in plants without the fragment chromosome. Pollen fertility and seed set were poor. In the selfed progeny of this plant, the fragment was observed in about half of the plants examined cytologically. High pollen sterility indicates that the male gametes carrying the fragment were inviable, and its transmission was presumably through the female gametes only.

In the progeny, among the plants with a fragment, one of the plants showed only 2n=23. This plant apparently originated through functioning of an aneuploid gamete (n=ll) in the parent. Irregular meiosis with 1--2 chromatin bridges and 1 -- 4 laggards at anaphase I were found in the aneuploid plant. Meiosis in the rest of the plants of the progeny with the fragment resembled that in the parent. Whether these irregularities in the progeny and parent were caused by the fragment is under investigation. It is difficult to speculate on the origin of the fragment at this stage.

Rick, C. M. In the course of our studies on the A key for the tomato species. species of Lycopersicon and closely

related Solanum, it has been possible to formulate the following key. I have attempted to utilize the characters that are least influenced by the environment and detectable in both growing plants and herbarium specimens.

Interior of ripe fruit red; seeds 1.5 mm or longer. Fruit diameter less than 1.5 cm, usually about 1.0 cm; leaf margin generally

undulate or entire. L. pimpinellifolium Fruit diameter more than 1.5 cm; leaf margin generally serrate.

Fruit diameter 3 cm or larger, two-to-several-loculed. L. esculentum Fruit diameter 1.5-2.5 cm, two-loculed. L. esculentum var. cerasiforme

Interior of ripe fruit yellow or orange; seeds 1.0 mm or shorter. Leaf with 2nd order divisions, the margins shallowly undulate. L. cheesmanii Leaf with 3rd order divisions, the margins deeply incised.

L. cheesmanii f. minor Interior of ripe fruit green or whitish; seeds of varying sizes.

Sympodia with three leaves. Herbage and fruits densely covered with large, multicellular trichomes;

plants robust (leaves > 20 cm). L. hirsutum Herbage and fruit lacking large, multicellular trichomes; plants

diminutive (leaves < 15 cm). Flowers small (corolla diameter 1.5 cm or less); seeds 1.0 mm or

shorter. L. parviflorum Flowers larger (corolla diameter 2.0 cm or more); seeds 1.5 mm

or longer. L. chmielewskii Sympodia with two leaves.

Pedicels basally articulated; anthers poricidal. S. pennellii Pedecels medially articulated; anthers dehiscent by lateral apertures.

Plant erect; peduncle longer than 15 cm. L. chilense Plants spreading; peduncle shorter than 15 cm..

Inflorescence undivided; leaves 5-segmented; stems prostrate. L. peruvianum var. humifusum

Inflorescence generally with 2nd or higher order divisions; leaves with 7 or more segments; stems sprawling, the tips ascending to 30 cm. L. peruvianum

Rick, C. M., and J. F. Fobes Linkage In the course of our studies on the relations of some isozymic loci. genetics of allozymic variants,

chiefly of L. pimpinellifolium, we will have determined the following linkages. These electrophoretic characters offer some advantages for such studies. Except for null alleles, all genotypes can be detected. The FZ test of two such loci will segregate into the nine expected (1:2:1) x (1:2:1) classes, providing more genetic information than the .corresponding backcross. Correspondingly, the (1:2:1) x (3:1) segregations are more efficient than the usual (3:1) x (3:1). Both are vastly superior for linkage detection. None of our alleles affect vigor, and all combinations can be scored unequivocally. Detection of heterozygotes permits test crosses to either homozygote. Seedlings are satisfactory for sampling and the tests are quick. The usefulness of the method is limited by the need for equipment and special procedures, although these are not exhorbitant or demanding, respectively. The decapitation of the plant required for sampling basal tissue is a drawback, but the plant can be identified by appropriate indexing and saved by rooting the shoot.

Chromosomal affiliations of some of these loci have been corroborated by trisomic tests (see Research Note by Fobes in this Report).

Chromosome 2. between a stock of wv -- d and F1 wv -- d x Est-1

1 -- Prx-21. The totals from two families (76L1319, 1386) with similar segregation were pooled. The estimated distances between d, wv, and Est-1 are consistent with a locus of Est-1 toward the centromere from wv. Prx-2, which is much closer to wv, probably also lies on the same side because the single recombinant was also d. The results suggest the map relations: centromere -- Est-1 -- Prx-2 -- wv --d. Other, preliminary data show a tight linkage between Prx-2 and Prx-3.

Chromosome 3 The first set of data below was collected in the F2 of sy--sf x Prx-7

1 (76L313). The spatial relations suggest a locus of Prx--7 distal to sy. If Prx-7 were situated on the other side of a. linkage with sf would probably have been detected. The other set was observed in 76L1955, F2 of Prx-6

n Prx-7an) Prx-71 x + -- +. Although linkage between these adjacent bands is indicated, the family is too small to provide a satisfactory estimate of distance. Tests will be made with other markers to approximate the locus.

Chromosome 4 The F2 of a cross between the clau -- ful -- ra -- e -- di tester and

Got-12 provided the following data. The results of two homogeneous families (77L73,80) were pooled. Data for clau and di are not included because both segregated independently of Got-l. The spatial relations between ful, ra, and Got-1 point to a locus for Got-1 between ful and ra in the pericentromeric region, possibly in heterochromatin. This conclusion is supported by the absence of any ful/ful -- +/Got-1 -- ra/ra segregants.

Chromosome 6 We previously reported complete linkage between Mi and Aps-1

(TGC24:25). All of our attempts in the meanwhile have failed to yield crossovers. Chromosome 7 The first set of data below were obtained from an F2 of var --not x

Got23 -- Got33 (L. parviflorum). (77L147; results incomplete -- family still being scored). The interspecific cross seems satisfactory since var -- not relations are normal. The second data were yielded by a + esculentum stock x parviflorum F2 (75L2009, 77L97; completely scored). The positioning most consistent with these limited results is: var -- Got-3 -- Got-2 -- not.

Chromosome 10 The F2 of a cross Prx-4

8 -- h x icn -- ag yielded the following data. The first segregations from a backcross involving the same markers have also been obtained but are too incomplete to merit reporting here. From all of the available data it seems more likely that Prx-4 lies between icn and h than distal to icn on 10S.

Robinson, R. W. and B. R. Phills The native habitat of S. lycopersi- Solanum lycopersicoides: A source coides at very high elevations in of tolerance to low temperature. South America suggests it might have tolerance to low temperatures. To test this

possibility, S. lycopersicoides and its intergeneric hybrid with the tomato were compared with L. esculentum in growth chamber and field tests. S. lycopersicoides was shown to have an extraordinary ability to thrive at temperatures above freezing but below the minimum temperature for growth and development of the tomato. S. lycopersicoides grew vigorously, produced abundant viable pollen, and had good fruit set at a constant 10 C, whereas tomatoes at this temperature were very stunted, chlorotic, and produced very few, sterile flowers. The Fl of S. lycopersicoides x L. esculentum also grew very vigorously and flowered profusely in the 10 C growth chamber and in the field late in the fall during cold weather. Thus, S. lycopersicoides appears to be a valuable source of genetically dominant tolerance to low temperature.

Field tests indicated that S. lycopersicoides is slightly frost tolerant, and this tolerance is partially dominant. This tolerance, however, was not superior to that previously obtained at Geneva, N. Y. from crosses of the tomato with L. hirsutum.

Stamova L., M. Yordanov Cladosporium According to existing references fulvum resistance derived from (Langford, 1948), autogenic necroses Solanum pennellii and L. minutum. connected with resistance to C. ful- vum are manifested in case the Cf-2

gene of L. pimpinellifolium controlling the resistance is combined with both recessive necrosis alleles ne/ne from the L. esculentum group. Similar necrosis was observed, nevertheless, in 1976 on F4 plants of the (Hemus x Monalbo) x S. pennellii cross grown in the field. This fact suggested that C. fulvum resistance could exist in that breeding stock. Since both cultivars (Hemus and Monalbo) are highly susceptible to the pathogen, the resistance could be derived only from the pollen parent S. pennellii (obtained from Prof. C. M. Rick in 1965).

Two hundred progenies of the above named cross were inoculated with an isolate of the widely extended (in Bulgaria) C. fulvum race of group A. Of them 42 progenies proved homozygous immune and 9 heterozygous resistant, i.e., having very limited sporulation; 122 progenies segregated for resistance, and 27 were fully susceptible. Even more important for resistance breeding is the fact that a part of the progenies with immune reaction proved homozygous resistant also to TMV and had good economic properties.

Resistance to the local C. fulvum race was found also in the F4 breeding stock originating from the Kecskemet 363 x L. minutum cross (N 43-4 obtained from A. Agnyanova). Autogenic necroses were observed in this material also.

The presence of genes controlling Cf resistance in these breeding stocks is still in the process of investigation.

Yordanov, M., L. Stamova A new source In Bulgaria breeding work on the de- of resistance to Corynebacterium velopment of tomato cultivars resis- michiganense (E. F. Sm) Jensen. tant to Corynebacterium michiganense

began in 1958. L. pimpinellifolium was used as a source of resistance and on that basis the resistant cultivars N 3 and 8/12 were developed. References point out the following as sources of resistance to C. michiganense: L. esculentum v. cerasiforme (Thyr 1968), L. hirsutum v. glabratum (Kuriyama, Kumyasu 1974), L. glandulosum, L. peruvianum

Thyr 1969), and L. peruvianum v. humifusum (Sotirova, Beleva 1976). Some of these sources have been used in breeding programs. The search for new sources of resistance continued in the Maritza Vegetable Crop Institute at Plovdiv, and in 1975 15 plants of each of the 22 F7 lines of the L. esculentum cv. Ace x L. chilense which had shown high level of resistance in field conditions were tested. Inoculation was performed during the autumn-winter period when the plants had developed 5 to 6 leaves by shortening the roots and dipping them into the bacterial suspension. The infection was exceptionally strong in order that highly resistant forms could be selected. The greater part of the breeding material was lost before reaching the fruiting period, a small part showed partial wilting of individual leaves, but 6 plants from 3 lines had no symptoms of the disease and produced satisfactory yield. The progenies of these plants, inoculated again in 1976, continued to segregate, nevertheless, from them plants fully resistant to C. michiganense were again selected. From the resistant controls only 9 plants of L. pimpinellifolium and 2 plants of 8/12 survived as well as 1 plant of H-2990 which had evident symptoms of the disease but succeeded in bearing fruits. The results obtained so far give us ground to believe that factors controlling resistance to C. michiganense exist in the breeding material from L. chilense.

PART II STOCK LIST

STOCKS AVAILABLE Tomato Genetics Stock Center Department of Vegetable Crops University of California, Davis, CA 95616

As the first installment of our stock inventory, the following list of tomato species

is presented for the convenience of TGC members and other interested scientists. These items were collected by members of the Davis team and colleagues and have been increased at Davis. Stocks of the outcrossed, polymorphic accessions are increased in a fashion to maintain the maximum possible genetic variation. Likewise, more liberal samples of these items are distributed to provide members the diversity they might need in searching for desired characters. Upon request, additional information can be furnished concerning these lines.

PART III DIRECTORY OF MEMBERS

Abou -Bakr, M. A., College of Agric. in Minia, Minia, Egypt Academy of Agric. Science, Central Library, Sofia, Bulgaria Acosta, J. C., Philippine Packing Corp., c/o J. R. Barnard, P. 0. Box 3575, San Francisco, CA 94119 Adachi, Taiji, Inst. of Plant Breeding, Faculty of Agric., Miyazaki Univ., Miyazaki, 880,

Japan Agricultural College of Sweden, Alnarp Library, Alnarp, Sweden Albert R. Mann Library, Acquisitions Division, Ithaca, NY 14850 Alberta Hort. Res Center, Library, Brooks, Alberta, Canada TOJ OJO Alvarez, Eduardo, DAGEM, Plaza Fray Andres de Castro, Edificio A-2 Piso, Toluca, Mexico Anagnostakis, Sandra L., Genetics Dept., Conn. Agric. Exp. Station, Box 1106, New Haven, CT

06504 Anais, G., Inst. Nat. de la Recherche Agron., Station d'Amel. des Plantes, Duclos, 97-1 Petit-Bourg, Guadeloupe, West Indies Anand, N., 101, New Hostel, Agric. College, Coimbatore-3, Tamil Nadu, India Andersen, W. Ralph, BYU, Botany Dept., Provo, Utah 84602 Andrasfalvy, Andras, Hort. Res. Inst., 1775 Budapest XXII. Park u 2-4, Hungary Angell, Frederick, A. L. Castel, Inc., P.O. Box 279, Hollister, CA 95023 Angulo-Casado, Arturo, Investigador del Programa de Hortalizas, Apdo. Postal No. 356, Culiacan, Sinaloa, Mexico Asgrow Seed Co., P.O. Box L, San Juan Bautista, CA 95045 Asian Veg. Res. & Dev. Ctr., Library, P.O. Box 42, Shanhua, Tainan, 741, Taiwan, Republic

of China Atanassova, B., Inst. of Genetics & Plant Breeding, Sofia 13, Bulgaria Auburn University, Serials Dept., Ralph Brown Draughon Library, Auburn, AL 36830 Augustine, Jimmy,U. of Florida, Agric. Res. & Ed. Ctr., 5007 60th St. East, Bradenton, FL 33505 Avdeyev, Yuri Ivanovich, 1 May Naberezhnaya 23, No. 3, Astrakhan, USSR Bagdad, Unv. of,Librarian (Mrs. Najla Madher), College of Agric., Abu Ghraib, Iraq Balgooyen, Bruce, Vegetableland, Star Ridge Rd., Brewster, NY 10509 Barham, W. S., Dept. Hort. Sci., Texas A&M Univ., College Station, TX 77843 Barman, Richard, Hort. Dept., Purdue Univ., West Lafayette, IN 47407 Bass, L. N., USDA, ARS, Natl. Seed Storage Lab., CSU Campus, Ft. Collins,_CO 80521 Beadle, G. W., 5533 Dorchester Ave., Chicago, IL 60637 Beckett, Jack B., 104 Curtis Hall, Univ. of Missouri, Columbia, MO 65201 Bedeker, H.S., Nimbkar Agri. Res. Inst., Phaltan (Satara) 415 523, Maharashtara, India Bell, William D., 9021 SW 156 St., #C-49, Miami, FL 33156 Bergam, Don, Moran Seeds, Inc., 1155 Harkins Rd., Salinas, CA 93901 Bergh, B.O., Plant Sciences Dept., Univ. of Calif., Riverside, CA 92502 Berkmortel, L.F/v.d., Bruinsma Hybrid Seed Co., P.B. 24, Naaldwijk, Holland Berry, Stanley, Horticulture, OARDC, Wooster, OH 44691 Bessey, Paul M., Dept. of Plant Science, 421 Agric., Univ. of Arizona, Tucson, AR 85721 Bhabha Atomic Res. Ctr., Central Library, Central Complex, Bombay-400 085, India

Bohn, G. W., U.S. Hort. Field Station, Box 150, La Jolla, CA 92037 Boklin, Ake, Caixa Postal 673, Campinas, S. P., Brazil

Borgnino, Frank, Dept. Veg.Crops, Univ. of Calif., Davis, CA 95616 Bosland, Paul, Dept. of Veg. Crops, Univ. of Calif., Davis, CA 95616 Bouwkamp, John, Univ. of Maryland, Dept. of Hort., College Park, MD 20742 Boynton, John E., Dept. of Botany, Duke Univ., Durhan, NC 27706 Bravo-V., Gabriel, C/Cardoner, 26 39.2a., Barcelona, Spain Breidenbach, R. W., Dept. of Agronomy, Univ. of Calif., Davis, CA 95616 British Library, Lending Div., Accessions Dept., Boston Spa, Wetherby, Yorkshire LS23 7BQ, England British Library, Science Reference Library, Bayswater Branch, 10 Porchester Gardens,

London W2 4DE, England Brock, R. D., Div. Plant Ind., C.S.I.R.O., P.O. Box 1600, Canberra, Australia Burdick,

Allan B., Genetics, Curtis Hall, Univ. of Missouri, Columbia, MO 65201 Burgess, Davis, E., Randolph Farms, Box 2101, 13300 Indian Rocks Rd., Largo, FL 33540 Butler, L., Dept. of Zoology, Univ. of Toronto, Toronto 5, Canada CAIA, S.A.R.L., P.O. Box 20, Elvas, Portugal Calvar, Delio J., Est. Expt. Agrop. del Alto Valle, Casilla 52, Gral. Roca (Rio Negro),

Argentina Campbell, Gary D., Moran Seeds, Inc., 1155 Harkins Rd., Salinas, CA 93901 Campo Agricola Experimental, Biblioteca, "Valle del Fuerte", Apdo. Postal No. 342, Los

Mochis, Sin., Mexico Cannon, O.S., Biology Dept., Utah State Univ., UMC 45, Logan, UT 84321 Cappadocia, Mario, Univ. Catholique de Louvain, Lab. de Phytopath., Place Croix du Sud,

3, 1348 Louvain-la-Neuve, Belgium Cardenas-Chavez, Ignacio E., Enc. del Programa de Hortalizas, Apdo. Postal #20,

Pabellon, Ags., Mexico Casali, Vicente, Dept. Fitotecnia, UFV, 36570 Vicosa, MG, Brazil Chiasson, Leo P., Dept. of Biology, St. Francis Xavier Univ., Antigonish, Nova Scotia,

Canada Choudhury, B., Div. Veg. Crops & Floriculture, Indian Agric. Res. Inst., New Delhi-

110012, India Chu, M.C., 114 Hort. Field Lab., Univ. of Illinois, Urbana, IL 61801 CIANE-Campo Agricola Experimental Biblioteca, Apdo. Postal No. 247, Torreon, Coah,

Mexico CIAPY Library, Apdo. Postal 50 Suc. D., Merida, Yucatan, Mexico Cirulli, Matteo, Ist. di Patologia Vegetale dell Uunivesita, Via Amendola 165-A, Bari,

Italy Clark, Sharron A., Golden West College, 15744 Golden West St., Huntington Beach, CA

92647 Clause, L., Societe, 91 Bretigny sur Orge, France Clayberg, Carl, Dept. of Horticulture, Kansas State Univ., Manhattan, KS 66506 Colorado State Univ., The Libraries, Ft. Collins, CO 80521 Condit, Alson, W. Atlee Burpee Co., 334 S. Briggs Rd., Santa Paula, CA 93060 Cornell Univ., Plant Breeding, Bradford Hall, Ithaca, NY 14853 Costa, A. S., Inst.

Agronomico, Campinas, S. P., Brazil Costa, C. P. da, Dept. of Genetics, Sao Paulo Univ., Caixa Postal 83, Piracicaba, Sao

Paulo 13.400, Brazil Courtney, William H., III, Dept. of Plant Science,'Univ. of New Hampshire, Durham, NH

03824

Coyne, Dermot, Dept. Hort. & Forestry, Univ. of Nebraska, Lincoln, NE 68503 Creech, Roy G., Mississippi State Univ., Dept. of Agronomy, P.O. Box 5248, Mississippi State, MS 39762

Crill, Pat, Petoseed Co., Rt. 4, Box 1255, Woodland, CA 95695 C.S.I.R.O., Librarian, Black Mt. Library, P.O. Box 109, Canberra City, ACT,

Australia 2601 C.S.I.R.O., Librarian, Hort. Res. Div., Private Mail Bag, P.O. Merbein, Victoria,

Australia 3505 C.T.C.P.A., Station Exper. de Conserves, 13 - Puyricard, France Darby, L. A., Glasshouse Crops Res. Inst., Littlehampton, Sussex, England BN16

3PU Daskaloff, Chr., Inst. of Genetics & Plant Breeding, Sofia 13, Bulgaria Davis, David W., Dept. Hort Sci., Univ. of Minn., St. Paul, MN 55101 Demarly, Prof., Lab. Amelioration des Plantes, Bat. 360, 91405 Orsay, France Dempsey, Wesley, Dept. of Biology, Chico State Univ., Chico, CA 95926 Dennett, R.K., c/o Petoseed Co., Rt. 1, Box 2145, Davis, CA 95616 Deruiterzonen, B.V., P.O. Box 4, Bleiswijk, Holland Dolan, D. D., USDA, Reg. Pl. Introd., NY State Agric. Exper. Sta., Geneva, NY

14456 Downes, J. D., Agronomy Dept., Texas Tech. Univ., Lubbock, TX 79409 Duesing, John H., Yale Univ., Dept. Biology, Osborn Memorial Labs, New Haven, CT

06520 Eisa, Hamdy M., The World Bank, D-755, 1818 H St., N.W., Washington, D.C. 20433 ElAhmadi, Abdel M.B., c/o Osman Ali Sidahmed, Gezira Agric. Res. Station, Wad

Medani, Sudan Emery, George C., 420 Martin St., Sun Prairie, WI 53590 Ente Nazionale Risi, Centro di Ricerche sul Riso, Piazza Martiri della Liberta,

31, 27036 - Mortara (Pv) - Italy Ewaniuk, Peter, 511 1/2 E. Jasper Rd., Heber, CA 92249 Faculty of Agric., Librarian, Univ. of Stellenbosch, Private Bag 5040, 7600

Stellenbosch, South Africa FAO Library, United Nations, Via delle Terme di Caracalla, 00100 Rome, Italy Farkas, J., Veg. Crops Res. Inst., P.O. Box 116, 60001 Kecskemet, Hungary Farley, James D., OARDC, Wooster, OH 44691 Fehleisen, S. 0., Inst. de Santa Catalina, Llavallol F.C.N.G.Roca, Argentina Fery, Richard L., U.S. Veg Breeding Lab., P.O. Box 3348, Charleston, SC 29407 Fierlinger, P.S., College of Agric. & Hort., Oaklands, St. Albans, Herts.,

England Flores, Isaias, Patagonia 120, Col. Alta Vista, Monterrey, N.L., Mexico Flory, Walter S., Dept. of Biology, Wake Forest Univ., Box 7325, Winston-Salem, NC 27109 Fobes, Jon, Dept. of Veg. Crops, Univ. of Calif., Davis, CA 95616 Fowler, C. Wayne, Asgrow Seed Co., P.O. Box P, Delray Beach, FL 33444 Frankel, Rafael, Volcani Inst., of Agric. Res., P.O. Box 6, Beit Dagan, Israel Frazier, W. A., 3225 N. W. Crest Dr., Corvallis, OR 97330 Fujimori, M., Kikyogharabunjyo, Naganoken Agric. Expt. Sta., Shiojirishi, Naganoken, Japan Fuqua, Mack C., TAMU Agric. Res. & Ext. Ctr., Drawer E, Overton, TX 75684 Gabelman, W. H., Dept. of Horticulture, Univ. of Wisconsin, Madison, WI 53706 Gamble, K. D., Agric. Dept. H. J. Heinz Co. Australia Ltd., P.O. Box 57, Dandenong, Victoria 3175 Australia Garay-Alvarez, Rafael, INIA, Campo Agric. Exp. Chapingo, Apto. Postal No. 1,

Chapingo, Mexico

Gardner, R. G., N. Carolina State Univ., Mt. Hort. Crop Res. Sta., Route 2, Box 250, Fletcher, NC 28732

Gautier, J. P. & Fils, Graines Gautier, B.P. No. 1, 13630 Eyragues, France Geise, C.E., Del Monte Corp., P.O. Box 36, San Leandro, CA 94577 Gentile, Adrian, Univ., of Mass., Dept. Envir. Sciences, 240 Beaver St., Waltham, MA 02154 George, B.F., Heinz U.S.A., Agric Res. Dept., 13737 Middleton Pike, Bowling Green, OH

43402 George, W.L., Jr., Dept. of Horticulture, Univ. of Illinois, 124 Mumford Hall, Urbana,

IL 61801 Georgiev, Christo, Inst. of Genetics & Plant Breeding, Sofia 13, Bulgaria Gilbert, J. C., Dept. of Hort., Univ. of Hawaii, 3190 Maile Way, Honolulu, HI 96822 Gill, Bikram S., Dept. Plant Sciences, Univ. of Calif., Riverside, CA 92502 Goldsmith, J. E., Goldsmith Seeds, Inc., P.O. Box 1349, Gilroy, CA 95020 Graham, T. 0., 270 Dublin St., N., Guelph, Ontario, N1H 4P7, Canada Grant, W. F., McGill Univ., P.O. Box 6070, Station A, Montreal, Quebec, Canada H3C 3G1 Greenleaf, W. H., Dept. of Hort., Auburn Univ., Auburn, AL 36830 Greyson, R. I., Dept. of Plant Sci., Univ. of Western Ontario, London, Ontario, Canada

NGA3K7 Hagemann, Rudolf, Dept. of Genetics, Martin Luther Univ., Domplatz 1, 402 Halle,

Germany, DDR Han, Sang Joo, c/o W. Atlee Burpee Co., 335 S. Briggs Rd., Santa Paula, CA 93060 Hanna, G. C., Dept. of Veg. Crops, Univ. of Calif., Davis, CA 95616 Harris Seeds, Jos. Harris Co., Inc., Moreton Farms, Rochester, NY 14624 Harrison, A. L., 1008 Carroll Dr., Yoakum, TX 77995 Hedde, L., Les Graines Caillard, 84260 Sarrians, France Henderson, Warren R., Dept. of Hort. Sci., No. Carolina State Univ., Raleigh, NC 27607 Hepler, Paul R., Dept. of Plant and Soil Sci., Univ. of Maine, Orono, ME 04473 Hepler, Roger W., PSU Dept. of Hort., 101 Tyson Bldg., University Park, PA 16802 Hernandez-B., Guillermo, DAGEM, Plaza Fray Andres de Castro, Edificio B - 2° Piso, Toluca, Mexico Herner, Robert C., Dept. of Hort., Michigan State Univ., East Lansing, MI 48824 Herrington, Mark, Redlands Hort. Res. Station, Delancey St., Ormiston, Queensland 4163,

Australia Hikida, H. R., Campbell Inst. for Agric. Res., P.O. Box 356, Davis, CA 95616 Holland, Harry, Asmer Seeds Ltd., Ash St., Leister, LE5 ODD, England Holl, Lawrence A., Libby, McNeill & Libby, Leipsic, OH 45856 Holle, Miguel, Dept. de Suelos y Cultivos, CATIE, Turrialba, Costa Rica Honma, Shigemi, Dept. of Hort., Michigan State Univ., East Lansing, MI 48823 Hood, Kenneth J., 2000 Huntington Ave., Apt. 1118, Alexandria, VA 22303 Hornby, C. A., Div. of Plant Sciences, Univ. of British Columbia, Vancouver 8, B.C., Canada Hort. Res. Inst., Librarian, Private Bag 293, 0001 Pretoria, South Africa Howes, Paul B., Univ. New Hampshire, Putnam Hall, Durham, NH 03824 Huang, Han, Dept. of Hort., National Taiwan Univ., Taipei, Taiwan, China Hudson, L. W., Regional Plant Introduction Station, Johnson Hall 59, Wash. State Univ., Pullman, WA 99163 Hung, Lih, Dept. of Hort., National Taiwan Univ., Taipei, Taiwan, China

Hunt Wesson Information Ctr., 1645 W. Valencia Dr., Mail Station 506, Fullerton, CA 92634

IITA, Librarian, P.M.B. 5320, Ibadan, Nigeria Indian Agric. Res. Institute, Head Library Services, New Delhi 110012, India Indian Inst. of Hort. Res., 255, Upper Palace Orchards, Bangalore - 560006, India I.N.I.A., Biblioteca, Centro Regional de Canarias, Apartado 60, La Laguna

(Tenerife), Islas Canarias, Spain I.N.I.A., Est. Exp. Agron., Biblioteca, Casilla Correo 8, La Consulta, Mendoza,

Argentina Institute of Hort. Plant Breed., Mansholtaan 15, Wageningen, Holland I.N.T.A., Est. Exp. Regional Agro. Salta, Biblioteca, Casilla de Correo No. 228,

Salta, Argentina Israely, E. A., Agric. Attache, Embassy of Israel, 1621 22nd St. N. W., Washington,

D.C. 20008 Istituto di Agron. Generale e Coltiv. Erbacee, dell' Universita, I 80055 Portici,

Napoli, Italy Istituto di Allevamento Vegetale dell' Universita, Borgo XX Giugo, I 06100 Perugia,

Italy Istituto Ricerche Orticole, 22070 Minoprio (Como), Italy Istituto Sperimentale di Orticoltura, 63100 Ascoli Piceno, Italy Ist. Agronomia Gen. Colt. Erbacee, University di Bologna, Bologna 14, Italy Istituto Sperimentale per le Colture Industriali, Via di Corticella 133, 40129 Bologna, Italy Jacobs, M., V.U.B., Paardenstraat 65, 1050 Brussels, Belgium Jacoby, Daniel, 383 Andrews Rd., East Williston, L.I.,N.Y. 11596 Johannessen, Geo. A., Calif. Processing Tomato Advisory Brd., 1757 Barcelona St., Livermore, CA 94550 John, C.A., 24401 SW 197th Ave., Homestead, FL 33030 John Innes Institute, Colney Lane, Norwich, NR4 7UH, England Juvik, J.A., Dept. of Veg. Crops, Univ. of Calif., Davis, CA 95616 Kamimura, Shoji, Morioka Branch, Hort. Res. Sta., Ministry of Agric. & Forestry, Shimokuriyagawa, Morioka, Japan 020-01 Kedar, N., Faculty of Agric., P.O. Box 12, Rehovot, Israel Kerr, E. A., P.O. Box 587, Simcoe, Ontario N3Y 4N5, Canada Kesicki, Eugeniuz, Inst. of Plant Genetics, Polish Acad. Sciences, ul. Strzesynska 2/4, 60-479, Poland Khush, Gurdev S., IRRI, P.O. Box 933, Manila, Philippines Kihara, H., Kihara Inst. Bio. Res., Mishima, Yata-Ohara, Mishima, Shizuoka-ken 411,

Japan Kim, Seung Jin, Hort., Exp. Station, Office of Rural Develop., Suweon, Korea Kiyomoto, Richard, Del Monte Corp., 850 Thornton St., P.O. Box 36, San Leandro, CA

94577 Konsler, T.R., N.C. State Univ., Mt. Hort. Crop Res. Station, Route 2, Box 250,

Fletcher, NC 28732 Konstantinova-Popova, M., Inst. of Genetics & Plant Breeding, Sofia 13, Bulgaria Kramer, Thomas, Peto Italiana S.r.1., Casella Postale 173, 43100 Parma, Italy Laborde, Jose, Dept. de Horticultura, INIA, Apdo. 112, Celaya, Gto., Mexico Lagarda-G., R. Alfonso, CIANO, Campo Agric. Experim. Valle del Mayo, Apdo. Postal 189, Navojoa, Sin., Mexico Lambeth, Victor N., Dept. of Horticulture, Univ. of Missouri, Columbia, MO 65201 Lamm, Robert, Karstorsvagen 26, S-134-00 Lomma, Sweden Lapushner, Dvora, Agric. Res. Station, P.O.B. 6, Beit-Dagan, Israel

Larson, R. E., College of Agric., Office of the Provost, Penn. State Univ., University Park, PA 16802

Laterrot, Henri, Sta. d'Amel. des Plantes Maraicheres, Domaine St., Maurice, 84140 Montfavet, France

Lee, Alex, A.L. Castle, Inc., P.O. Box 877, Morgan Hill, CA 95037 Leen de Mos B. V., P.O. Box 54, 's-Gravenzande, Holland Leeper, Paul W., Texas A&M, Res. & Ext. Ctr., P.O. Drawer 1105, Weslaco, TX 78596 Leski, Bogdan, Dept. of Plant Pathology, 26/30 Kakowiecka St., Warsaw, Poland Lesley, J. W., Dept. of Plant Science, Univ. of Calif., Riverside, CA 92502 Lindgreen, Hans J., H. P. Lindgreen's Enke, Stollig nr. Aabenraa, Denmark Lobo A., Mario, Kra BOA #34B-26, Medellin, Colombia, South America Lopez-L., Fidel,

Dept. de Hortalizas, CIAS, Apdo. Postal 356, Culiacan, Sin. Mexico Lorenz, LeVern, Box 52, Isabella, OK 73747 Lucas, Nora, Central Mindanao Univ., Musuan Bukidnon, Philippines Lukyanenko, Anatolij, Plant Breeding Station, Krasnodar Region, Krymsk-4, USSR Lundin, Marianne, Weibullsholm Plant Breeding Institution, S-26120 Landskrona, Sweden MacNeill, B. H., Univ. of Guelph, Dept. of Envir. Biology, Guelph, Ontario, Canada Marathwada Agric. Univ., Fruit Res. Station, Himayat Bagh, Aurangabad 431001,

Maharashtra State, India Marchesi, Giuseppe, Istituto di Botanica, Universita Cattolica S. Cuore, Via Emilia

Parmense, 29100 Piacenza, Italy Martin, Mark W., Research & Extension Center, Prosser, WA 99350 Marwan, M., Dept. of Genetics, Fac. of Agric., Ain Shams University, Shoubra El Kheime,

Cairo, Egypt Marx, G. A., Dept. of Veg. Crops, Agric. Exper. Sta., Geneva, NY 14456 Matheson, James A., Agway Inc., Vegetable Seed Farm, Box 336, Prospect, PA 16052 Mazereeuw, Piet, ENZA - ZADEN, De Enkhuizer Zaadhandel B.V., Postbox 7, Enkhuizen, Holland McComb, J.A., Dept. of Environmental & Life Sciences, Murdoch Univ., Murdoch, Western

Australia 6153 McFerran, Joe, Dept. of Horticulture and Forestry, Univ. of Arkansas, Fayetteville, AR

72701 Meredith, C. P., Dept. of Veg. Crops, Univ. of Calif., Davis, CA 95616 Metcalf, John C., Agric. Canada, Smithfield Exper. Farm, Box 340, Trenton, Ontario, K8V

5R5, Canada METI-DEPT. de Fitotecnia, Herdade da Mitra, Evora, Portugal Michigan State University, The Library, East Lansing, MI 48823 Moens, Peter B., Dept. of Biology, York Univ., Downsview 463, Ontario, Canada Monaco, Lourival C., Instituto Agronomico, C.P. 28, Campinas, S. P., Brazil Monti, Luigi, M. Centro di Studi Nucleari, Casella Postale N. 2400, 00100 Rome, Italy Moore, John F., Campbell Soup Co., Ltd., Route 6, 5589 Hurontario St., Mississauga,

Ontario, Canada Munger, H. M., Dept. of Plant Breeding & Biometry, Cornell Univ., Ithaca NY 14850 New South Wales Dept. Agric., Librarian, State Office Block, Phillip St., Sydney, New

South Wales, Australia

NY State Agric. Exp. Station, Library, Jordan Hall, Geneva, NY 14456 Nichols, C. G., Ferry-Morse Seed Co., P.O. Box 1010, San Juan Bautista, CA

95045 Niemansverdriest, W.C., Inst. of Plant Breeding, 166 Lawickse Allee,

Wageningen, Holland Nihon Hort. Production Inst., 207 Kamishiki, Matsudo Chiba, Japan Nishi, Sadao, Veg. & Ornamental Crops Res. Station, Ishinden-Ogoso-Tsu City,

Japan North Carolina State Univ., Acquisitions Dept., D.H. Hill Library, P.O. Box

5007, Raleigh, NC 27607 Nunhem's Zaden b.v., Haelen Lb, Holland Oba, Geo. I., Del Monte Corp., 850 Thornton St., P.O. Box 36, San Leandro, CA

94577 Ognjanova, Angelina, ul Graf Ignatiev 7a, Sofia, Bulgaria Opena, Romeo, Asian Veg. Res. & Dev. Ctr., P.O. Box 42, Shanhua, Tainan 741,

Taiwan, Rep. of China Otani, Husao, Uzuhashi 2-4-14, Matsumoto City, Nagano Prof. 390, Japan Paddock, Elton F., Dept. of Botany, Ohio State Univ., Columbus, OH 43210 Pargas, Roberto, Univ. Autonoma Agraria "Antonio Narro", Buenavista Saltillo, Coahuila, Mexico Pearson, O. H., Dept. of Plant Breeding and Biometry, Cornell Univ., Ithaca,

NY 14850 Pecaut, P., Sta. d'Amelioration des Plantes Maraicheres, Domaine St. Maurice,

84140-Montfavet, France Peirce, L. C., Dept. of Plant Science, Univ. of New Hampshire, Durham, NH 038 Pelham, J., Inst. of Tree Biology, The University, Mayfield Rd., Edinburgh EH9

3JU, Scotland Pencis, Sandra, Dept. of P1. Path. & Bact., 401 Brooks Hall, West Virginia

Univ., Morgantown, WV 26506 Perkins, K. W., Carolina Biological Supply Co., 2700 York Rd., Burlington, NC

27215 Perlasca, Gerardo, Campbell's Soups S.p.A., Felagara, Parma, Italy Persson, Arnulf, Agric Univ. of Norway, Dept. of Veg. Crops, P.O.B. 22, 1432

Aas-NLH, Norway Petrescu, Cornel, BP 537, Kisaugani, Rep. du Zaire, Afrique Phills, Bobby, Dept. Agric. Sciences, Tuskegee Institute, AL 36088 Shilouze, Jacqueline, Sta. d'Amelioration des Plantes Maraicheres, Domaine St. Maurice, 84140-Montfavet, France Piquer, G. J., Room 740, FAO - Plant Prod. and Protection Div., Via Terme di

Caracalla, Rome, Italy Poli, Virgil, Sta. Exper. Legum., Isalnitza-Craiova, Roumanie Pollack, B. L., Blake Hall, Rutgers Univ., New Brunswick, NJ 08903 Portas, Carlos Alberto, Dept. Plant Sciences, Inst. Univ. de Evors, Av. Dr. Barahona, 1, Evora, Portugal Pratt, David, Dept. of Bact., Univ. of Calif., Davis, CA 95616 Prend, J., Agric Research, H. J. Heinz, P.O. Box 57, Stockton, CA 95201 Proefstation voor de Groenten en Fruitteelt onder Glas, Zuidweg 38, Naaldwijk, Holland Provvidenti, Rosario, Dept. Plant Pathology, NYS Agric. Exp. Station, Geneva,

NY 14456 Prud'homme, J. R., Centre de Selection de la Costiere, Vilmorin-Andieux, 30 -

Ledenon, France

Purdue Univ. Libraries, CDN - Kardex, 17614 Serials, West Lafayette, IN 47907 Quiros, Carlos F., INIA, Dept. de Hortalizas, Apdo. 112, Celaya Gto., Mexico Ramirez, Jose G., Dept. of Veg. Crops, Univ. of Calif., Davis, CA 95616 Rao, Panuganti N., Andhra Univ., Dept. Botany, Waltair (AP), India Reeves, Alvin F., Univ. of Maine, Aroostook Exp. Farm, Presque Isle, ME 04769 Reimann-Philipp, R., Bundesfor. fur garten. Pflanzenzuchtung, 207 Ahrensburg/ Holst., Bornkampsweg, Germany Rendon-Poblete, M.C. Edgar, INIA, Dept. de Hortalizas, Apartado 112, Celaya, Gto.,

Mexico Reynard, G. B., Campbell Research Inst., Riverton, NJ 08077 Rick, C. M., Dept. of Veg. Crops, Univ. of Calif., Davis, CA 95616 Robinson, R. W., Dept of Veg. Crops, Agric. Exper. Station, Geneva, NY 14456 Rodriquez, N. Francisco, Alfredo Ferreyra 1670, Corrientes, Argentina Salama, Anwar A., Dept. of Veg. Crops, Univ. of Calif., Davis, CA 95616 Salinas-G., Sergio A., Campo Agric Exp., Apdo. Postal #33, Zaragoza, Coah., Mexico Sams, David W., Inst. Agronomique Hassan II, Boite Postale 704, Rabat-Agdal, Morocco Saucedo, Ruben, Apdo. Postal 356, Culiacan, Sinaloa, Mexico Sawant, Anand C., Mahatma Phule Agric. Univ., Rahuri Ahmednagar, Maharashtra, India Sayed, Mohamed El, Research Dept., H. J. Heinz U.S.A., P.O. Box 57, Cleveland, MS

38732 Scott, John W., Dept. of Hort., The Ohio State Univ., 2001 Fyffe Court, Columbus, OH

43210 Serizawa, M., Kikyogaharabunjyo, Naganoken Agric. Expt. Sta., Shiojirishi, Naganoken,

Japan Shapiro, Nathan, Biology Dept., Eastern Conn.St. College, Willimantic, CT 06226 Silvas-Rios, Javier, Depto. de Hortalizas, Apdo. Postal #189, Navojoa, Sonora, Mexico Silvy, A., Dept. de Biologie, Centre d'Etudes Nucleares, PB No. 1, 13115 Saint-Paul-

Lez-Durance, France Skrdla, Willis H., Reg. Plant Introduction Station, Iowa State Univ., Ames, IA 50010 Sluis en Groot B. V., Koninklijke Zaadteelt en Zaadhandel, Enkhuizen, Holland Sluis, Royal, Koninklijke Zaaizaadedrijven, Gebroeders Sluis B.V., P.O. Box 22,

Enkhuizen, Holland Smith, P. G., Dept. of Veg. Crops, Univ. of Calif., Davis, CA 95616 Soost, R. K., Dept. Plant Sciences, Univ. of Calif., Riverside, CA 92502 Soressi, G. P., Exp. Inst. of Veg. Crops, via Paullese, 60, 20075 Montanaso Lombardi (Mi), Italy South Dakota State Univ., Dept. of Hort.-Forestry, Brookings, SD 57006 Stall, R. E., Dept. of Plant Path., Univ. of Florida, Gainesville, FL 32611 Stamova, Lilyana, Maritsa Institute for Veg. Crops, Plovdiv, Bulgaria Stark, F. C., Div. Agric. & Life Sciences, Univ. of Maryland, College Park, MD 20742 Stevens, M. A., Dept. of Veg. Crops, Univ. of Calif., Davis, CA 95616 Stillwell, Martin R., Av. du Republica, 52,7°, Lisbon-1, Portugal Stoner, Allan K., Veg. Lab., ARS-USDA, Beltsville, MD 20705 Summers, W. L., Iowa State Univ., Dept. of Hort., Ames, IA 50011 Sweaney, Wilma P., Dept. of Zoology, Univ. of Toronto, Toronto, Ontario, Canada

Sweden, Agric. College of, Biblioteket i Uppsala, S-750 07, Uppsala 7, Sweden

Takayanagi, Kenji, Div. of Genetics, Nat. Inst. of Agric. Sci., Hiratsuka, Kanagawa 254, 1-24 Oohara, Japan

Takii Seed Co., Umekozi Shimogkyoku, Kyoto, Japan Tal, Moshe, The Negev Inst. Arid Zone Res., P.O. Box 1025, Beersheba, Israel Tanksley, Steve, Dept. of Veg. Crops, Univ. of Calif., Davis, CA 95616 Terrega-B., J. J., Dept. de Genetica, Paseo al mar. Facultad de Ciencias, Valencia 10, Spain Tezier, Claude, Tezier Freres, P.O. Box 223, 26002 Valence Sur-Rhone, France Thomas, Paul, Peto Research Ctr., Rt. 4, Box 1255, Woodland, CA 95695 Thompson, Anson E., Rockerfeller Fnd., 1133 Ave. of The Americas, New York NY 10036 USDA, ARS, WR, c/o College of Agriculture, Rm. 323A, Univ. of Nevada, Reno, NV

89557 Tigchelaar, E. C., Dept. Hort., Purdue Univ., Lafayette, IN 47907 Tokeshi, H., Dept. of Fitopatologia, E.S.A. Luiz de Queiroz, C. Postal 9,

Piracicaba, S. P. Brazil Tomes, M. L., Dept. of Botany and Plant Pathology, Purdue Univ., Lafayette, IN

47906 Torrey, T. C., W. Atlee Burpee Co., 335 South Briggs Rd., Santa Paula, CA 93060 Tronickova, Eva, Inst. of Genetics and Plant Breeding, Prague 6-Ruzyne,

Czechoslovakia Tsentr. N. Sel'skokhoz Biblioteka, Otd. Mezh. Knigo-obmena, Orlikov per., 1/11,

Moscow 1-139, USSR Tsuchiya, T., Dept. of Agronomy, Colorado State Univ., Ft. Collins, CO 80521 University Agraria, Dept. of Hort., Aptdo. 456, La Molina, Lima, Peru Univ. of Calif., Bio-Agric. Library, Serials, Riverside, CA 92502 Univ. of Dublin, Dept. of Genetics, Trinity College, Dublin 2, Ireland Univ. of Florida, Agric. Res. & Educ. Ctr., 18905 S. W. 280th St., Rt. 1, Homestead, FL 33030 Univ. of Guelph, Hort. Science, 126, Guelph, Ontario, Canada N1G 2W1 Univ. of Minnesota, St. Paul Campus Library, St. Paul, MN 55101 Univ. of New Hampshire, Library Serials Dept., Durham, NH 03824 Univ. of Puerto Rico, Agric. Exp. Station, P.O. Box H, Rio Piedras, PR 00928 Usher, Susan, Univ. of Toledo, College of Arts and Sciences, Community Infor mation, Toledo, OH 43606 Vegetable Section, Private Bag X11208, 1200 Nelspruit, South Africa Vickery, R. S., Univ. of New South Wales, School of Botany, P.O. Box 1,

Kensington, NSW, Australia 2033 Villareal, Ruben L., Asian Veg. Res. Dev. Ctr., P.O. Box 42, Shanhua, Tainan 741,

Taiwan, Rep. of China Virgin, W. J., 1632 Kensington Ave., Los Altos, CA 94022 Volin, R. B., IFAS, Univ. of Florida, Agric. Res. and Educ. Ctr., 18905 SW 28th

St., Homestead, FL 33030 Wann, E. V., U.S. Veg. Breeding Lab., Box 3348, Charleston, SC 29407 Warnock, S. J., Campbell Inst. Agric. Res., P.O. Box 356, Davis, CA 95616 Washington State Univ., 2416 Genetics Program 580, Pullman, WA 99163 Washington State Univ., Science & Engineering Library, Pullman, WA 99164 Waters, Will E., Univ. of Florida, Agric. Res. & Educ. Ctr., 5006 60th St. East, Bradenton, FL 33505 Weizmann Inst. of Science, Wix Library, Rehovoth, Israel

Werner, Dennis J., Dept. of Hort., Michigan State Univ., East Lansing, MI 48823 West Virginia Univ. Library, Acquisitions Dept., Downtown Campus, Morgantown, WV 26506 Wettstein-Knowles, Penny von,Carlsberg Laboratory, GL. Carlsbergvej 10, DK-2500,

Copenhagen Valby, Denmark Whalen, Richard H., Dept. of Botany-Biology, S. Dakota State Univ., Brookings, SD 57006 White, R. A. J., Levin Hort. Res. Centre, Private Bag, Levin, New Zealand Williams, T. V., Western Res. Center, Niagara Chemical Div. FMC Corp., P.O. Box 2508, El

Macero, CA 95618 Wilson, Geo. F., Int. Inst. of Tropical Agric., Oyo Rd., P.M.B. 5320, Ibadan, Nigeria Wilson, Kenneth G., Dept of Botany, Miami Univ., Oxford, OH 45056 Wittmeyer, E. C., Dept. of Horticulture, Ohio State Univ., 2001 Fyffe Court, Columbus,

OH 43210 Wyatt, Colen C., Petoseed Co., Inc., Rt. 4, Box 1255, Woodland, CA 95616 Yordanov, Milko, Inst. for Veg Crops "Maritsa", Plovdiv, Bulgaria Yoshida, Miyuki, Kikko Foods Corp., 3.1-chome, Koamlcho,Nihonbashi, Chuoku, Tokyo, Japan Yu, Albert. 3612 Cowell Blvd., Davis, CA 95616 Yukura, Yasuo, 46-7, 3 Chome, Miyasaku, Setagaya-Ku, Tokyo, Japan Zobel, Richard W., Agron. Dept., Bradford Hall, Cornell Univ., Ithaca, NY 14853 Zubeldia, A., Unidad de Horticultura, Centro de Levante (INIA), Moncada (Valencia), Spain

PART IV BIBLIOGRAPHY OF PAPERS ON TOMATO GENETICS AND BREEDING

Published in 1975 Agadzhanyan, A. M., 1975 (Cross compatibility of Lycopersicon esculentum and L pimpinellifolium

with L. hirsutum.) Biol. Zhur. Arm. 28(12):40-48, (Russian). Alpat'ev, A. V., A. V. Choladze, 1975 (Degree of inheritance of some characters in tomatoes

according to the state of generative elements during crossing of the parental varieties.) Dokl. Vses. Akad. S-kh Nauk. 2:5-7. (Russian).

Anon., 1975 Annual report of the Netherlands Institute of Horticultural Plant Breeding, 1974. Wageningen. 48 pp. (Dutch; English summary).

Anon., 1975 Annual report of the Swedish Seed Association, 1974. Sveriges Utsadesforenings Tidskrift. 85(2/3):67-138. (Swedish; English summary). (Certain F1 hybrids have linkage between four genes for resistance to tobacco mosaic virus, to three physiological races of Pyrenochaeta lycopersici, to Verticillium and to Fusarium.)

Atanosova, B., 1975 (Longistyly in the tomato.) Genet. and Plant Breed. 8(l):76-81. (Bulgarian; English summary).

Barksdale, T. H., A. K. Stoner, 1975 Breeding for tomato anthracnose (Colletotrichum coccodes) resistance. Plant Dis. Rep. 59(8):648-652.

Bartz, J. A., J. P. Crill, C. A. John, 1975 Inheritance of tolerance to Erwinia carotovora in Florida MH-1 tomato. Phytophatology 65(10):1146-1150.

Boerner, T., B. Schumann, S. Krahnert, M. Pechauf, F. H. Herrmann, R. Knoth, R. Hagemann, 1975 Structure and function of the genetic information in the plastids. Part 13. Lamellar proteins of pale plastids of plastome and gene mutants of Hordeum vulgare and Lycopersicon esculentum Biochem. Physiol. Pflanz. 168(1-4):185-193.

Bose,S., S. N. Maiti, 1975 Preliminary studies on post-irradiation treatments with hydroxylamine and ethyleneimine on germination, seedling growth and mitotic aberrations in three varieties of tomato (Lycopersicon esculentum Mill.). Science and Culture 41(8):397-399.

Bottino, P. J., 1975 The potential of genetic manipulation in plant cell cultures for plant breeding. Radiat. Bot. 15(1):1-16.

Boukema, I. W., F. Garretsen, 1975 Uniform resistance to Cladosporium fulvum Cooke in tomato (Lycopersicon esculentum Mill.). 1 Investigations on varieties and progenies of diallel crosses. Euphytica 24(1):99-104.

Boukema, I. W., F. Garretsen, 1975 Uniform resistance to Cladosporium fulvum Cooke in tomato (Lycopersicon esculentum Mill.). 2. Investigations on F2's and F3 's from diallel crosses. Euphytica 24(1):105-116.

Brezhnev, D. D., L. N. Listokova, V. K. Shcherbakov, 1975 (Producing new forms of tomato by Y irradiating plants.) Dokl. Vses. Ordena Lenina Akad. Sel-kh

Nauk. Imeni V.I. Lenina No. 6:7-8. (Russian). Britton, G., T. W. Goodwin, 1975 Carotene epoxides from the Delta tomato mutant. Phytochemistry

14(11):2530-2532. Casali, V. W. D., E. C. Tigchelaar, 1975 Breeding progress in tomato with pedigree selection

and singele descent. J. Am. Soc. HortSci. 100(4):362364.

Chilton, M. D., 1975 Ribosomal DNA in a nuclear satellite of tomato. Genetics 81(3):469-483. Clayberg, C. D., 1975 Insect resistance in a graft-induced periclinal chimera of tomato.

Hortscience 10(1):13--15. Cresti, M., E. Pacini, G. Sarfatti, C. Simoncioli, 1975 Ultrastructural features and storage

function of Lycopersicon peruvianum pollen. Proc. Symposium Gamete Competition in Plants and Animals, p. 19-28.

Daskaloff, C., A. Ognyanova, M. Konstantinova, 1975 Inheritance of growth habit components in self-pruning tomatoes. Dokl. S-kh Akad. Im Georgiia Dimitrova 8(3):33-37.

Dhillon, G. S., V. P. Gupta, K. S. Nandpuri, 1975 Parent offspring correlations and heritability in tomato (lycopersicon esculentum L.). Indian J. Farm Sci. 3:75-78.

Dhillon, G. S., K. S. Nandpuri, V. P. Gupta, 1975 Heterosis in tomato (Lycopersicon esculentum L.). J. Res., Punjab Agric. Univ. 12(3):258-264.

Dhillon, G. S., K. S. Nandpuri, 1975 Root-knot nematode resistance in tomato (Lycopersicon esculentum Mill.). J. Res. Punjab Agric. Univ. 12(4):373377.

Dishler, V. Ya., G. E. Kavatss, 1975 (The effect of biologically active substances on the frequency of genetic recombinations in tomatoes.). Latv. Psr. Zinat. Akad. Vestis (9):53-60.

Dowley, L. J., D. G. Routley, L. C. Peirce, 1975 Effect of ploidy level on stomate number and guard cell length in tomato. Ir. J. Agric. Res. 14(2):220-221.

Dryanovska, 0. A., 1975 Induced parthenocarpy with pollen irradiated with gamma rays (Tomatoes, cucumbers, melons). C. R. Acad. Bulg. Sci. 28(9):12731276.

Fery,R. L., F. P. Cuthbert, Jr., 1975 A tomato fruit worm antibiosis factor in Lycopersicon. HortScience 10(2):146 (Abst.).

Fobes, J. F., D. F. Paige, 1975 Refinements in starch gel electrophoresis for genetic screening of horticultural materials: Application to nematode testing of Lycopersicon esculentum. Hortscience 10(3):313. (Abst.).

Fredrickson, D. L., E. Epstein, 1975 Genetically controlled differences in salt tolerance of two species of the tomato. Plant Physiol. 56(2, Suppl.):4. (Abst.).

George, W. L., Jr., J. D. Farley, G. L. Oakes, 1975 Progress in breeding greenhouse tomatoes (Disease resistance). Res. Summ. Ohio Agric. Res. Dev. Cent. 82:1-3.

Ghidoni, A., D. Fior, F. Togliani, 1975 (Inheritance of Lycopersicon esculentum grown in a greenhouse). Gen. Agraria 29(1/2):223-231. (Italian; English summary).

Hirota, S., 1975 Studies as to genetic biochemistry on the formation of lycopene and coloring of tomato. Part 2. Bull. Coll. Agric., Vet. Med. Nihon Univ. (32):107-114.

Hornby, C. A., S. C. Li, 1975 Some effects of multipaternal pollination in tomato plants. Can. J. Plant Sci. 55(l):127-131.

Iakovleva, I. A., 1975 ' (Genetical investigation of tomato mutants capable of changing their cell turgor). Genetika 11(2):47-54. (Russian;English summary).

Imanishi, S., I. Hiura, 1975 Relationship between fruit weight and seed content in the tomato (Varieties, heritability). J. Jap. Soc. Hort. Sci. 44(1):3340.

Janoria, M. P., A. E. Thompson, A. M. Rhodes, 1975 Inheritance and evaluation of

alcohol insoluble solids of tomatoes as a secondary character in selection for juice viscosity. Amer. Soc. HortSci. 100(3):219-221.

Jones, J. P., P. Crill, 1975 Susceptibility of "resistant" tomato cultivars to Fusarium wilt. Phytopathology 64(12):1507-1510.

Krylova, M. I., 1975 (Resistance of tomato varieties and hybrids to Cladosporium fulvum and the inheritance of this character). Tsitol. Genet. 9(5):436-438. (Russian; English summary).

Kvasnikov, B., G. Bogdanova, 1975 (Resistance of tomato varieties to Xantohomonas vesicatoria.) Kari. Ovosh. No. 6:38-39. (Russian).

Laterrot, H., 1975 (Selection for the resistance to Phytophthora investans in tomato.) Ann. Amelior. Plantes. 25(2):129-149, (French; English summary).

Levenko, B. A., 0. V. Kiforak, 1975 (Effect of phytohemagglutinin on the mitotic activity and ploidy of tomato callus cells.) Genetika 11(3):167-170. (Russian; English summary).

Litvinenenko, A. I., P. A. Cherviakova, 1975 (Comparative study of diploid and tetraploid tomatoes.) Sel. Semenovod (Kiev) 31:86-91. (Russian).

Luk'yanenko, A. N., 1975 (Inheritance of the gene for "single flower on the main stem" in tomato and its pleitropic effects.) Byull. Vses. Ord. Len. i Ordena Druzhby. No. 52:14-16. (Russian).

Mahajan, R., J. S. Kanwar, K. S. Nandpuri, 1975 Field screening of some tomato varieties and hybrids against the root-knot nematode (meloidogyne incognita). Res. Punjab Agric. Univ. Ludhiana 12(l):40-42.

Mahna, S. K., S. C. Jain, 1975 Free amino acid composition of Lycopersicon species and their fruit mutants. Science & Culture 41(10):511-512.

Majid, R., 1975 Comparative mutagenic efficiency of radiations and EMS in Lycopersicon. J. Genet. Plant Breed. 35(1):90-99.

Makhalova, M. R., 1975 (A tomato mutant induced by X-ray radiation.) Dokl. Vses. Akad. S-kh. Nauk. 6:18-19. (Russian).

Maksoud, M. A., A. A. Hussan, E. K. Allam, A. K. A. Selim, H. R. Nazeem, 1975 Nature of resistance to tobacco mosaic virus in tomato, Lycopersicon esculentum Mill. Ann. Agric. Sci. (Moshtohor)4:141-147.

Manuelyan, H. M., M. Yordanov, Z. lordanova, Z. Ilieva, 1975 Studies on.s carotene and lycopene content in the fruits of Lycopersicon esculentum Mill. X L. chilense hybrids. Qualitas Plantarium 25(2):205-210.

McGlasson, W. B., H. C. Dostal, E. C. Tigchelaar, 1975 Comparison of propylene-induced responses of immature fruit of normal and rin mutant tomatoes. Plant Physiol. 55(2):218-222.

McGlasson, W. B., B. W. Poovaiah, H. C. Dostal, 1975 Ehylene production and respiration in aging leaf segments and in disks of fruit tissue of normal and mutant tomatoes. Plant Physiol. 56(4):547-549.

McLeod, K. A., 1975 The control of growth of tomato pollen. Ann. Bot. (Loud.). 39(161):591-596.

Mihailov, L., 1975 A study on the number of ovules per fruit set in tomato (Lycopersicon esculentum Mill.) hybrid combinations and the corresponding parent cultivars. Dokl. S-kh Aka. Im Georgiia Dimitrova 8(3):45-47.

Milkova, L. 1975 General and specific combining ability for mean fruit weight in a tomato (Lycopersicon esculentum Mill.) diallel cross. Dokl. S-kh Akad. Im Georgiia Dimitrova 8(4):23-25.

Milkova, L., 1975 General and specific combining abilities for percent of fruit set in a tomato (Lycopersicon esculentum Mill.) diallel cross. Dokl. S-kh Akad. Im Georgiia Dimitrova 8(3):39-42.

Mizrahi, Y., H. C. Dostal, J. H. Cherry, 1975 Ethylene-induced ripening in attached rin fruits, a non-ripening mutant of tomato. HortSci. 10(4):414415.

Mizrahi, Y., H. C. Dostal, W. B. McGlasson, 1975 Effects of abscisic acid and benzyladenine on fruits of normal and rin mutant tomatoes. Plant Physiol. 56(4):544-546.

Mizrahi, Y., H. C. Dostal, W B. McGlasson, J. H. Cherry, 1975 Stockscion interactions of normal and fruit ripening mutants rin and nor in tomato. Physiol. Plant. 35(3):232-235.

Mizrahi, Y., H. C. Dostal, W. B. McGlasson, J. H. Cherry, 1975 Transplantation studies with immature fruit of normal and rin and nor mutant tomatoes. Plant Physiol. 55(6):1120-1122.

Nandpuri, K. S., J. S. Kanwar, S. Singh, 1975 General vs specific combining ability in a set of top crosses of male sterile lines with pollinators in tomato Lycopersicon esculentum. J. Res. Punjab Agric. Univ.. 12(1):34-39.

Nettancourt, D. De., M. Devreux, F. Carluccio, U. Laneri, M. Cresti, E. Pacini, G. Sarfatti, A. J. G. Gastel, 1975 Facts and hypotheses on the origin of S mutations and on the function of the S gene in Nicotiana alata and Lycopersicum peruvianum. Proceedings of the Royal Society of London, B 188(1092):345-360.

Oganesyan, M. G., 1975 (Rates of fertilization in tomato varieties and their hybrid differing in the length of their growth periods.) Biol. Zhur. Arm. 28(6):100. (Russian) (Abst.).

Ogynanova, A., 1975 Inheritance of earliness components in a tomato diallel cross including Lycopersicon pimpinellifolium Mill. and Lycopersicon hirsutum f. glabratum Humb. et Bonpl. Dokl. S-kh Akad. Im Georgiia Dimitrova 8 4):17-22.

Pierce, L. C., J. W. Lee, N. McHale, 1975 Impact of intergenotypic competition in selecting among bush tomato phenotypes. HortSci 1O(5):511-12.

Peter, K. F., B. Rai, 1975 Evaluation of tomato genotypes for field resistance to frost. Sci. Cult. 41(1O):479-480.

Poovaiah, B. W., Y. Mizrahi, H. C. Dostal, J. H. Cherry, A. C. Leopold, 1975 Water permeability during tomato fruit development in normal and rin nonripening mutant. Plant Physiol. 56(6):813-815.

Popova, D., L. Mikhailov, 1975 (Peroxidase activity during pollen germination and fertilization in the year of heterotic seed production in tomato.) Grad. Loz. Nauka 12(8):75-78. (Bulgarian; English summary).

Popova-Konstantinova, M., 1975 A study of fruit set in F1 interspecific hybrids of tomato. Dokl. S-kh Akad. Georgiia_Dimitrova. 8(b:49-53.

Popova-Konstantinova M., 1975 Inheritance of seed germinating capacity and rate at 26° and 11° in F tomato interspecies hybrids. Dokl. S-kh Akad. Georgiia Dimitrova 8(3):69-72.

Quiros, C. F., 1975. Exine pattern of a hybrid between Lycopersicon esculentum and Solanum pennellii. J. Hered. 66(l):45-77.

Rao, M. V. B., H. S. Sohi, S. K. Tikoo, 1975 Reaction of wilt-resistant tomato varieties and lines to Pseudomonas solanacearum in India. U. S. Agric. Res. Ser. Crops Res. Div. Plant Dis. Rep. 59(9):734-736.

Rast,A. T. B., 1975 Variability of tobacco mosaic virus in relation to control of tomato mosaic in glasshouse tomato crops by resistance breeding and cross protection. Agric. Res. Reports, Wageningen, Netherlands No. 834, 76 pp.

Rick,C. M., J. F. Fobes, 1975. Allozymes of Galapagos tomatoes: polymorphism geographic distribution and affinities. Evolution 29(3):443-456.

Rick, C. M., J. F. Fobes, 1975 Allozyme variation in the cultivated tomato and closely related species. Bull. Torrey Bot. Club 102(6):376-384.

Ruttencutter, G. E., W. L. George, Jr., 1975 Genetics of stigma position in tomatoes. Res. Sump. Ohio Agric. Res. Dev. Cent. 82:5-7.

Saccardo, F., L. Tomarchio, L. M. Monti, 1975 (Lycopersicum hirsutum as a source of resistance to Phytophthora infestans in tomato.) Genet. Agrar. 29(1/2): 215-222. (Italian; English summary).

Salamini, F., T. Maggione, C. Lorenzoni, G. P. Soressi, (Hybrid tomatoes. III. Evaluation of combining ability of 86 varieties.) Sementi Elette 21( 4):323. (Italian; English summary).

Savin, V. N., M. V. Arkhipov, V. T. Abdullaev, 1975 (Study of influence of gamma radiation on the DNA state in the nuclei of the root meristem of barley and tomatoes.) Dokl. Vses. Akad. S-kh Nauk. 6:15-17. (Russian).

Selim, A. K. A., H. R. Nazeem, 1975 Inheritance of some qualitative characters in tomatoes. Ann. Agric. Sci. 3:131-145.

Selim, A. K. A., H. R. Nazeem, 1975 Inheritance of some quantitative characters in tomatoes. Ann. Agric. Sci. 3:147-162.

Shelby, R. A., C. M. Peterson, W. H. Greenleaf, 1975 The mechanism of heat sterility in tomatoes. HortScience 10(3):336 (Abst.).

Sidhu, C. S., J. M. Webster, 1975 Linkage and allelic relationships among genes for resistance in tomato (Lycopersicon esculentum against Meloidogyne incognita. Can. J. Gen. Cytol. 17(3):323-328.

Singh, H., K. S. Nandpuri, 1975 The genetic analysis of acidity and total soluble solids in tomato. J. Res. Punjab Agric. Univ. 12(4):367-372.

Slavov, S., 1975 (Features of the reproductive interrelations and the nature of sterility in hybrids between Lycopersicon esculentum Mill. and L. chilense Dun. Genet. Cytol. 17(3):323-328.

Slavov, S., 1975 (Pigment types in the BC1 and the S1 from the BC 1 of from the BC 1 of Lycopersicon esculentum Mill. X L. chilense Dun.). Genet.Sel. 8(5):345-352. (Bulgarian; English summary).

Sotirova, V., L. Beleva, 1975 Resistance of wild species, varieties and cultivars of tomato to Xanthomonas vesicatoria (Doidge) Dowson. Comp.Rend. Acad. Agric. Georgiia Dimitrova 8(2):43-47.

Stamova, L., 1975 The genetic marker brown seed-3 and possibilities for its use in hybrid seed production of tomatoe. Genet. Plant Breed. 8(3):201-207. (Bulgarian; English summary).

Stevens, M. A., 1975 Heritability of tomato viscosity and contribution of fruit components to genotypic variation in viscosity. HortScience 10(3): 314. (Abst.)

Taylor, D. P., 1975. Observations on a-resistant and a susceptible variety of and a susceptible variety of tomato in a field heavily infested with Meloidogyne in Senegal. Cahiers ORSTOM, Biologie 10(3):239-245.

Tjamos, E. C., I. M. Smith, 1975. The expression of resistance of Verticillium albo-atrum in monogenically resistant tomato varieties. Physiol. Plant Path. 6(3};215-225.

Trinklein, D. H., V. N. Lambeth, 1975 Reciprocal cross differences and combining ability for six diverse tomato lines. J. Am. Soc. Hort. Sci. 100(6):650652.

Tronickova, E., 1975 (The use of functionally sterile lines in the production-of hybrid tomato seed.) Ves. Cesk. Akad. Zem. 22(4):153-158. (Czech.) (Abst.).

Tumanyan, E. R., A. Kh. Danielyan, 1975 (The effect of radiation on the process of fertilization in tomato.) Biol. Zhu. Arm. 28(6):95-97.

Venkateswarlu, J., 1975 Chromosome pairing in autopolyploids. Proc. Indian Nat'l. Sci. Acad., Part B, Biol. Sci. (PIBSB) 41(1):31-39.

Vorob'eva, G. A., 1975 (A study of first generation hybrids from the cross combination Lycopersicon esculentum Mill. X Solanum pennellii Corr.). Byull. Vses. Ordena Lenina i Ordena Druzhby Narodov Instituta Rastenievodstva Imeni N.I. Vavilova No. 52:71-78. (Russian).

Yakovleva, I. A., 1975 Genetic study of tomato mutants with variable cell turgor. Genetika ll(2):47-54.

Zhila, E., 1975. (Useful mutant forms of tomato.) Kartofel I Ovoschchi No. 7:33. (Russian).

Zhuchenko, A. A., V. K. Andryuschchenko, A. B. Korol, S. K. Korochkina, 1975 Mapping of genetic factors of quantitative characters in the tomato. Tsitol. Genet. 9(2):101-105.

Zhuchenko, A. A., V. K. Andryuschchenko, A. B. Korol, S. K. Korochkina, 1975 Mapping of genetic factors of quantitative characters in the tomato. Tsitol. Genet. 9(2):101-105.

Zhuchenko, A. A., V. S. Nesterov, V. K. Andryuschchenko, V. A. Dobryanskii, S. K. Korochkina, 1975 Use of genetic parameters in the tomato breeding process. Tsitol. Genet. 9(1):71-74. (Russian; English summary.).

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1972 Herrmann, H., E. Gunther, 1972 (Crossability of self-compatible mutants of Lycopersicon

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Kuriyama, T., H. Mochizuki, T. Kawaguchi, 1972. (Studies on breeding tomato for combined resistance to leaf mold and Fusarium wilt. II. On the breeding of tomato Okitsu No. 12, self-pruning type, and the effect of the selections in the backcross method of breeding.) (Abstract). Bull. Hort. Res. Sta., B. Okitsu, 12:95-118 (Japanese). From Review of Plant Pathology (1975) 54(5) (Abst.) 1873.

Monti, L. M., F. Saccardo, 1972 Modification by acute irradiation of recombination frequencies in tomatoes. IAEA-PL-503/13, 233-240. Int. Atomic Energy Agency 115-245.

Nettancourt, D. De, F. Saccardo, U. Laneri, E. Cappaccio, M. Westerhof, R. Ecochard, 1972 Self-compatibility in a spontaneous tetraploid of Lycopersicum peruvianum Mill. IAEA-PL-503/13, 77-84. Int. Atomic Energy Agency 1-114.

Nemtsov, G. D., N. N. Fedorova, 1972 (Photoinduced mutagenesis in tomatoes.) In Nekotor. vopr. biodinamiki i bioenerg organizma v norme i patol., biostimulyatsiya lazer. Izlucheniem. Alma-Ata, Kazakh SSR, 184-189. (Russian). From Ref. Zhur. (1973) 5.55.59.

Palacios, A., A. Sosa, C. Moss, 1972 (Genetic resistance of same varieties of tomato (Lycopersicum esculentum) to attack by Meloidogyne spp.) Agrociencia, D No. 9, 119-125. Spanish; English summary).

Saccardo, F., L. M. Monti, 1972 Isolation of aneuploids originating from induced unstable chromosome aberrations. Vienna, Austria; International Atomic Energy Agency 242-404.

Sigurbjornsson, B., Bjorn Sigurbjornsson, A. Micke, 1972 Philosophy and accom-plishments of mutation breeding. Vienna, Austria; International Atomic Energy Agency 247-404.

Silvy, A., 1972 (The influence of γ irradiation on the survival of tomato meristems.) Int. Atomic Energy Agency 247-404. (French; English summary).

1973 Anon., 1973 Eighty-third annual report, 1969-1973. Towards a more modern state.

Bull., Agric. Exp. Sta. Univ. of Maryland, No. A 181, III., 93 p. (TMV resistance; Hetrodera resistance; disc-gel electrophoresis to distinguish different genetic backgrounds.)

Anon., 1973 Research branch report 1972. I1. Fruit and vegetable crops. Canada Dept. of Agric., Ottawa 369 pp. (ogc in new tomato varieties).

Aizenshtat, Ya. S., 1973 (The possibility of "repair" in disturbed segregations). Vestn. Leningr. un-ta No. 9, 148-150 (Russian; English summary). From Ref. Zhur. (1973) 1.55.1.

Chaudhary, R. C. 1973 (Study of heritability and genetic advance in a tomato cross.) Res. J. Agric. & Animal Sci. 1(2)87-90, (Hindi; English summary).

Dorosiev, L., 1973 (Mutant forms of tomato obtained by treatment with low-temperature shock and their practical usefulness.) In Eksperim. mut. selek. Moscow, USSR; Kolos. 102-115. (Russian). From Ref. Zhur. (1973) 5. 55.198.

Karbinskaya, E. N., 1973 (The manifestation of longistyly in tomatoes.) In Selek. i semen. ovosh. Kishinev, Moldavian SSR; Stiinca. 67-72. (Russian From Ref. Zhur. (1973 11.55.23.

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Marwan, M. A., A. K. A. Selim. S. I. El-Sayed, 1973 The coordination of chlorophylls and carotenoids in the leaves of plants produced from irradiated seeds in different tomato cultivars. Egyptian J. Botany 16(1/3):437447.

Masum-Zade, Kh. T., 1973 (Microsporogenesis and pollen fertility in an inter-specific F hybrid (L. esculentum Mill. X L. hirsutum Humb. et Bompl.). Dep. 5753-5773, 10 pp. (Russian). From Ref. Zhur. 1973) 8.55.36.

Nagle, E. F., V. Ya. Dishler, G. E. Kavats, 0. V. Popova, 1973 (The effect of chemical substances on the frequency of genetic recombination in tomato.) In Teor. i prakt. vopr rats. isopl'z zhivotnykh i rest. Riga, Latvian SSR; Zinatne. 164-166. (Russian). From Ref. Zhur. (1973) 8.55.9.

Nevryanskaya, A. D. E. P. Iovva, 1973 (The heterotic effect after the cross pollination of plants from different conditions of mineral nutrition.) Bul. Akad. Stiince RSSMold., Ser. biol. i. khim. n. No. 6, 31-36. (Russian). From Ref. Zhur. (1974) 5.55.31.

Popova, D., L. Mikhailov, 1973 A study of monogenic heterosis in tomato (Lycopersicon esculentum Mill.). Sov. Genet. 9(12):1513-1516. (Transl. 1975) from Genetika 9(12):34-39.

Rodionov, V. K., 1973 (Study of mutants in the M2 , M3 and M4.) Nauch. tr. Voronezh. S-kh. in-t 56:05-11.0. (Russian). From Ref. Zhur. 2.55.168. Rubtsov, M.

I., 1973 (Use of genetic markers in the production of heterotic hybrid seed of tomato.) Nauch. tr. Voronezh. s.-kh. in-t 56, -5-1L

(Russian). From Ref. Zhur. (1974) 2.55.169. Samsonova, I. A., F. Bottcher, 1973 (Back mutations to plastids able to become green in a

pLastome mutant of Lycopersicon esculentum.) Wiss. Zeit. ErnstMoritz-Arndt-Univ. Greifswald, Math. Naturwiss. (1973) 22(1/2)69-80. (German).

Simonov, A. A., 1973 (Forms of sterility in a varietal population of tomatoes.) Nauch. tr. Maikop. opyt. st. VNII nastenievodstva (1973) No. 7, 83-89. From Ref. Zhur. (1974), 4.55.169. (Russian).

Simonov, A. A., 1973 (Inheritance of some characters of sterility in tomato.) Nauch. tr. Maikop. opyt. st. VNII rastenievodstva No. 7, 90-95. (Russian). From Ref. Zhur. (1974 2.55.16.

Stamova, L., 1973 (The genetic marker Brown seed 3 and the possibility of using it in the hybrid seed production of tomato.) Genet. Selek. 8(3):201-207. (Bulgarian; English summary).

Zaginailo, N. N., N. M. Ivchenko, E. I. Shtanenko, 1973 (Cladosporium fulvum in tomatoes and methods of breeding resistant varieties.) In Selek. smeno. ovosh. Kishinev, Moldavian SSR; Stiinca. 104-113. (Russian). From Ref. Zhur. (1973) 11.55.230.

Zaginailo, N. N., A. I. Kosova, E. N. Karbinskaya, 1973 (The appearance of determinate forms of tomato in the progeny of hybrids of indeterminate varieties.) In Selek. i semen. ovosh. Kishinev, Moldavian SSR; Stiinca. 2224.(Russian). From Ref. Zhur. (1973) 11.55.226.

Vasil'eva, L. P., N. I. Petrukhina, 1973 (A study of sterile forms of tomatoes.) In Puti povysh. urozhamosti. (Russian). From Ref. Zhurn. (1974) 1.55.201.

Zhuchenko, A. A., V. K. Andryushchenko, N. N. Balashova, M. M. Korol', V. G. Grati, S. A. Sokova, G. A. Anyukhovskaya, 1973 (Complex evaluation of the genetic resources of the genus Lycopersicon Tourn under irrigation in Moldavia.) Kishinev, Moldavian SSR; Kartja Moldovenjaske. 308 pp. (Rus-, sian). From Ref. Zhur. (1974) 8.55.184.

1974 Abrosimova, E. 1. 1974 (Diurnal and seasonal dynamic of the potential rate of phytosynthesis

in F1 hybrids of tomato and their parent forms) Nauch. tr. Sev.-Zap. NII s. kh. No. 28, 59-62. (Russian). From Ref. Zhur. (1974) 8.55.183.

Adachi, T., Y. Nakamura, T. Nagatomo, 1974 (Breeding for disease resistance in tomato using wild species.) Bull. Faculty of Agric., Miyazaki Univ. 21(l):97-105. (Japanese; English summary).

Agadzhanian, A. M., E. M. Navasardian, 1974 (Growth features of the hybrids of F1 Lycopersicon esculentum with self-compatible and self-incompatible forms of Lycopersicon hirsutum.) Biol. Zh. Arm. 27(10):51-56. (Russian).

Agadzhanyan, A. M. (Aghajanyan, A. M.), E. M. Navaardyan, 1974 (A comparative study of hybrids of some Lycopersicon species with L. hirsutum and L. hirsutum f. glabratum.) Biol. Zh. Arm. 27(12):54-59. Z Russian .

Alon,R., J. Katan, N. Kedar, 1974 Factors affecting penetrance of resistance to Fusarium oxysporum f. sp. lycopersici in tomatoes. Phytopathology 64(4):435-461.

Anon., 1974 Growth regulator balance in 2 isogenic lines of tomato b1 and 1s. UK, Glasshouse Crops Research Institute Annual Report, Littlehampton, 176 PP.

Anon., 1974 20th annual report for the year 1973. UK, Scottish Hort. Res. Inst. Ivergowrie, 93 pp. (hp, ogc tomato mutants).

Avdeyev, Y. I. (Avdeev, Yu. I.), M. S. Efimov, V. E. Kucherov, 1974 Tetraploid forms of vegetable crops and possibility of their use in breeding. Proc. XIX Int. Hort. Cong. I. Section VII. Vegetables. pp. 675-720.

Barksdale, T. H. 1974 Evaluation of tomato fruit for Rhizoctonia soil rot resistance. Proc. Amer. Phytopath. Soc. 1:148-149. (Abst.)

Batikyan, G. G, E. R. Tumanyan, A. Kh, Danielyan, 1974 (The effect of irradiation on megasporogenesis and the development of the female gametophyte - in tomato.) Biol. Zhu. Arm. 27(12)2227. (Russian).

Brezhnev, D. D., A. A. Simonov, 1974 (Main aspects of work on heterosis in tomato using male sterility.) In Dokl. sov. uchenykh k XIX Mezh. kongr. sad, Varshava, 1974. Moscow, USSR; Kolos. 349-353. From Ref. Zhur. (1974) 12.55.207. (Russian; English summary).

Cerchez, N., 1974 (Studies on the relationship between hybrid progeny and age of male flowers in tomato.) Cerc. Agron. Moldova No. 2, 67-72. From Abst. Ram. Sci. Tech. Lit. (1974) 9(l):Abst. 284. (Romanian).

Circulli, M., 1974 Genetic resistances of tomato and their use in Italy especially in greenhouse culture. Genet. Agrar. 28(3-4):317-356.

Dolhikh, S. T., R. N. Khafizov, 1974 Mutability of the garden pea and tomato with chronic gamma-irradiation of the plants and the acute irradiation of the seeds. Sov.

Genet. 10(5):574-577. Transl. 1974. Farkas, J., 1974 (Results of tomato genetic research.) Bull. Zold. Kut. Intez.9:61-64.

(Hungarian: English summary). Gabelman, W. H., G. C. Gerloff, 1974 Genetic differences in efficiency in growth of

tomatoes and beans under stress levels of macronutrients.) Proc. NIX Int. Hort. Congress I Sec. VII. Vegetables pp. 675-720. (Abst.)

Ignatova, S. I., 1974 (Interspecific hybridization in the Solanaceae.) In Dokl, sov. uchenykh k XIX Mezh. kongr. sadov., Varshava, 1974, Moscow, USSR; Kolos., 402-406. From Ref. Zhur. (1975) 1.55.36. (Russian; English summary).

Klyuchareva, M. V., G. D. Nemtsov, A. A. Shakhov, 1974 (Change in the chromosome complement of tomatoes after fertilization with pollen irradiated with sunlight or laser beams.) In Probl. fotoenerg, rast. Kishinev, Moldavian SSR; Stiinca. 111-117. From Ref. Zhur. (1975) 2.55.162. (Russian).

Kosova, A. I., V. N. Kiku, N. N. Zaginailo, 1974 (The incompatibility of the cultivated tomato with the wild species Lycopersicon peruvianum Mill.) Bul. Akad. Stiince RSSMold No. 4, 45-51. From Ref. Zhur. (1975) 1.55.37. (Russian).

Kuriyama, T., K. Kuniyasu, 1974 (Studies on breeding disease-resistant tomatoes by beans of interspecific hybridization. III. Selecting new material resistant to bacterial canker.) Bull. Veg. and Orn. Crops Res. Sta., No. 1, 93-107. (Japanese; English summary).

Lasso, R., 1974 (Development of processing tomato varieties tolerant of Pseudomonas solanacearum by using interspecific crosses.) Fitotec. Lat. 10(1):4651. From Abst. Trop. Agric. (1975) 12(1) Abst. 7505612. (Spanish).

Manuelyan, Kh., M. Yordanov, Z. Yordanov, Z. Ilieva, 1974 (Studying the carotene composition in the fruits of Lycopersicon esculentum Mill. X L. chilense Dun. hybids.) Proc. XIX Int. Soc. Hort. Sci. I. Addendum 943-1001. (Absts.)

Mayee, C. D., J. S. Kanwar, K. S. Nandpuri, 1974 The comparative performance of

different genotypes of tomato vis-a-vis leaf curl and mosaic. J. Res. Punjab Agric. Univ. 11(4):362-364.

Mittal, R. K., H. N. Singh, R. R. Singh, J. Haryana, 1974 Combining ability in tomato. Hort. Sci. 3(3/4):168-176.

Monti, L. M., 1974 Mutation induction in tomatoes and peas. Proc. XIX Int. Soc. Hort. Sci. Congress IA. Section I. General (Absts.) 5-118.

Nandpuri, K. S., J. S. Kanwar, S. Singh, 1974 Genetic variability and genotype X environmental interactions in tomato (Lycopersicon esculentum Mill.). J. Res. Punjab Agric. Univ. 11(3):242-246.

Nemtsov, G. D., A. S. Bashaeva, 1974 (Photoinduced mutagenesis in tomatoes in Kazakhstan.) In Probl. fotoenerg, rast. Kishinev, Moldavian SSR; Stiinca. 209-214. From Ref. Zhur. (1975) 2.55.163. (Russian).

Orsenigo, M., N. Rascio, P. Giulini, 1974 Preliminary observations on seeds of bs-bs mutant in the cultivar Sioux of Lycopersicon esculentum. Genet. Agrar. 28(3-4):272-277.

Palyanskaya, A. M., 1974 (Use of y irradiation to obtain early forms of tomato.) Vestsi AN BSSR. Ser. sl'skagaspad. n. No. 4, 63-68, 140. From Ref. Zhur. (1975 4.55.160. (Russian).

Paponov, A. N., A. I. Mezentseva, 1974 (The use of coefficients of heritability in evaluating some characters in tomato plants.) Tr. Perm. s.-kh. in-t 106:73-78. (Russian). From Ref. Zhur. (1975) 10.55.253.

Rama Rao, M., B. Choudhury, 1974 Inheritance of processing qualities of tomato (Lycopersicon esculentum Mill.). Proc. XIX Int. Hort. Congres I. Sec. VII. Vegetables pp. 675-720. (Abst.).

Robinson, W. E. Kowalewski, 1974 Breeding tomatoes for frost tolerance. Proc. XIX Int. Hort. Congress I. Sec. VII. Vegetables pp. 675-720. (Abst.).

Rodriguez, Fuentes, C., 1974 (Estimation of heritability coefficients and genetic advance for yield and its main components in tomato (Lycopersicon esculentum Mill.). Centro Agricola 1(3):3-9. (Spanish: English summary).

Som, M. G., B. Choudhury, 1974 (Breeding for resistance to leaf curl virus in tomato (Lycopersicon esculentum Mill.). Proc. XIX Int. Hort. Congress I. Sec. VII. Vegetables pp. 675-720 (Abst.).

Soressi, G. P., E. Gentinetta, M. Odgardi, F. Salamini, 1974 Leaf peroxidase activities in tomato mutants affecting plant morphology. Biochemical Genetics 12(3):181-198.

Svanosio, A., G. Vandoni, 1974 Analysis of combining ability in Lycopersicon esculentum crosses among new lines. Genet. Agrar. 28(3):256-271.

Thakur, M. R., E. K. Alban, 1974 Environmental and genetic control of heterosity (heterogony) in tomato. Indian J. Genet. Plant Breed. 34A:1232-1241.

Yamakawa, K., 1974 Effect of chronic gamma radiation on hybridization between Lycopersicon esculentum and L. peruvianum. Proc. XIX Int. Hort. Congress IA. Sec. I. General (Absts.) pp. 5-118.

Zobel, R. W., 1974 The genetics of root development (tomatoes, beans). In The Development and Function of Roots, Cabot Symposium, 3d:261-275.

Zhuchenko, A. A., V. K. Andryushenko, N. N. Balashova, V. S. Nesterov, A. B. Korol', 1974 (Some problems in the genetics of tomato.) In Dokl. sov. uchenykh k XIX Mezh. kongr. sadov. Varshava, Moscow, USSR; Kolos. (1974 392396. (Russian; English summary). From Ref. Zhur. (1975) 1.55.107.

PART V

APPENDIX

Bouwkamp, John. 1.976. Summer Salad. Maryland Agric. Expt. Sta. release notice dated Mar. 12,1976. SUMMER SALAD . (Md 42 ) Pedigree:

F8 selection of Red Cherry X Fla 407-D3-D1 Characteristics:

d, I, j, red fruits 1 .9-2.5 cm. cherry type, Dwarf growing habit, rugose dark green foliage and extended fruiting period makes it suitable for pot or hanging basket culture.

Doucet, Roger. 1975. Station de Recherches Agricoles, St.-Hyacinthe, Quebec release notice.

PETITEBEC Pedigree:

Swift X P . I . 19 715 9 . Characteristics:

sp, ug, red globe approx. 3 cm., crack resistant, holds on vine well (long storage life)

SUPERBEC Pedigree:

P.I. 263726-24-1 (Puerto Rico) X High Crimson. Characteristics:

Fruit 6--8 oz. , ug, og, crack resistant, holds on vine reasonably well.

Harrison, A. L. 1975. Improved Summertime, A new tomato for South and South Central Texas. Texas Agric. Expt. Sta. L-1400. IMPROVED SUMMERTIME Pedigree:

Summertime, Texto 2, Nematex and many unnamed multiple resistant lines.

Characteristics: sp, I, Mi, red fruits 3.75-6.25 cm. , sets fruit at high temperatures, resistant to blossom-end rot, some types of fruit cracking and puffing, tolerant of Alternaria, collar rot. Adapted to South and South Central Texas a s a spring, summer or fall crop.

Heinz Agricultural Research Department. 1975. HortScience 10(5):469.

HEINZ 102 (H102-0-1P-1-2-0) Pedigree:

Texas W231S67 x BES 56-1) x H2134 Characteristics:

sp, j.. I, very early, concentrated maturity, crack resistant, adapted machine harvest eastern US and Canada.

HEINZ 1706 (H 1706K1) Pedigree:

[VR Moscow x Rama] x [Fireball x (Burgess crackproof x ES 24]

Characteristics: sp, I, Ve, pear shape fruit, crack and burst resistant, excellent color, small core, shatters. Similar to Early Napoli. Adapted machine harvest eastern US, Canada and Europe.

HEINZ 1939 (H 1939-0-3-0-12-03-E) Pedigree:

H 1610 x H 1783 Characteristics:

I, Ve, j, very firm, crack resistant, excellent color. Adapted eastern U.S., Canada, Europe and Australia.

HEINZ 2134 (H2134-0-2-0-5) Pedigree:

H1783xH2001 Characteristics:

sp, I, Ve, j,, very early, medium round crack resistant fruits . Adapted eastern U.S. and Canada.

Kerr, E.A. 1975. HortScience 10(5) :470. 1976. Personal correspondence dated Dec. 17, 1976. Horticultural Experiment Station, Simcoe, Ontario. N3Y4N5. VEEBRITE - released January 1972

Parentage: Campbell 1402, Coldset x Coldset. Heinz 1350. Characteristics:

sp, u, Ve, large heart-shaped to oblate fruit, firm, smooth, crack resistant, good holding ability, resistant to blossom-end rot, tendency like Fireball to bleach on exposed side of fruits.

MARKET VEEBRITE - sister selection of Veebrite. Similar to Veebrite

except fruit larger and slightly paler interior. VEEMORE - released February 1974

Parentage: complex, derived from [Roma VF x H1350. High Crimson] x [Glamour x Early Baltimore. Pritchard]

Characteristics:

sp, u, wt, Ve, I. Fireball season; firm; excellent color, acidity and holding ability; blossom end smooth but fruits slightly lobed. Fruit slightly small for hand picking but concentrated maturity. Resistant to sunbleaching but somewhat susceptible to PAN.

VEEROMA - released February 1974

Parentage: Roma VF x Chico (not Chico III) Characteristics:

sp, u, o, Ve, I. Generally similar to Roma VF but a week earlier and somewhat smaller. Fruit more exposed and maturity more con-centrated.

VEEPICK - released July 1976

Parentage: Complex The final cross was made between Roma VF and a breeding line derived from Heinz 1350, Campbell Kc109, a genetic marker containing br sp n wt j, I and a Cf gene, Potentate, P.I. 79532 (Mo. Acc. 160) and Morden Yellow.

Characteristics:

sp, u, o, Ve, I. A stout pear-shaped tomato with thick walls, excellent color and flavor, Matures with Veeroma but fruit size twice as large. Insufficient concentration and firmness for mechanical harvest. Introduced primarily as a paste-type, - fresh-market cultivar for Pick-Your-Own.

Leeper, Paul. 1976. TAMU SALADETTE, a new dual purpose, fresh market and/or processing tomato. Release announcement, correspondence dated Dec. 14, 1976.

Characteristics: Small sp, c, I, S, Fruit red, 40-60 g. , plum to globe shaped, firm 2- 3

locales completely filled with gel and seed; thick smooth peel, crack resistant. Concentrated fruit set and maturity. Sets under high temperature/high humidity conditions. Upright growth habit, strong stems. Earlier maturity than TAMU CHICO III. Machine harvestable.

Metcalf, J. G. 1976. Personal correspondence dated December 30, 1976. Smithfield Experimental Farm, Box 340, Trenton, Ont. KBV5R5.

Characteristics:

sp, u, ogc, shallow core, midseason in the Trent season being 10 days earlier than H-1350. Crack resistant with good internal structure. Smooth 5 oz. fruit which hold well. Resistant to blossom-end rot.

Characteristics: sp, u, ogc, Ve, midseason 7 days earlier than H-1.350. Shallow core and firm; size 5-6 oz, of spherical fruit. Yields 30% higher than Moira. Resistant to blossom-end rot.

Characteristics: sp, u, ogc, season early compares to Fireball, 4-5 oz. smooth, spherical fruit which hold well for an early. Attractive exterior and interior. Primarily for fresh market.

McFerran, Joe., M. J.. Goode and Wayne Montgomery. 1976. Traveler '76. A new pink-fruited market tomato. Arkansas Farm Research XXV No. 1.

Characteristics: sp+, y, u, I; fruit deep globe, 180 g. , very smooth; outstanding resistance to radial and concentric cracking, slightly earlier than Traveler. Adapted for fresh market and home garden use.

Stevens, M. Alien, G.L. Dickinson and M.S. Aguirre. 1976.

UC 82, a high yielding processing tomato. University of California Vegetable Crops Series 183.

Characteristics ur, j+, I, Ve, fruit red, blocky, firm, 6 or more to the truss. As compared to VF 145 B-7879, fruits of UC 82 are smaller, lower in soluble solids and titratable acidity, and higher in viscosity and puree color. Released as a processing cultivar for its superior fruit setting and yielding characteristics, vine storage and bulk handling characteristics.

Sumeghy, J.B. 1975. New market tomatoes with resistance to Fusarium wilt. T. Australian Institute of Agricultural Science. 41(2):72-75. Dept. Agric., Hawkesbury Agric. College., Richmond, NSW, Australia.

Characteristics COLLEGE ABUNDANT and COLLEGE RED

sp+, I, Se, globular red fruits averaging 165 g. , red locular jelly, fruits at 10-24OC. in every second leaf axil. For fresh market in coastal regions of New South Wales.

Volin, R. B., 1. J. Augustine, H. H. Bryan, D. S. Burgis, Pat Crill, J. W. Strobel and C. A. John. 1977. 'Florida 1011', A DualPurpose, Market-Processing Tomato Genetic Stock. Correspondence dated Oct. 13, 1976 and submitted to HortScience.

Zresistant to diseases: C-leaf mold, A-early blight, V-Verticillium wilt, St-grey leafspot, W-Fusarium wilt (race 1).

Characteristics:

sp, I, Ve, Sm, j2, U, fruit firm, slightly elongate, crack resistant, fruit size averages 114 g., not concentrated in maturity. Released as a genetic stock for the development of dual purpose fresh market-processing lines.

Volin, R. B. and H. H. Bryan. 1975. 'Flora--Dade', a Fresh Market Tomato with Resistance to Verticillium Wilt. Proc. Fla. State Hort. Soc. 88:218-221.

FLORA-DADE Pedigree:

F8 selection of 'Walter' (U. of Fla. Circ. 8-202) x Line 2153. Line 2153 pedigree includes sister line of 'Tropi-Red' (U. of Fla. Circ. 8-182), 'Florida 555' (U. of Fla. Circ. S-220) and 'Heinz 4', a VF resistant genetic stock.

Characteristics:

sp, I-2, Ve, Sm, j2. Tolerant to early blight and Erwinia carotovora fruit rot; fruit firm and medium size (130 g.), tolerant to radial and concentric cracking. Resistance to Fusarium oxysporum, f. lycopersici is for races 1 and 2.

For commercial fresh market, mature-green production. Not as concentrated in fruit set as 'Florida MH-1'. Matures later than 'Florida MH-1 and 'Walter' (95-100 days seeding to mature-green fruit for 'Flora-Dade'. Released as a cultivar.

REPORT of the

TOMATO GENETICS COOPERATIVE

NUMBER 27 FEBRUARY 1977

DEPARTMENT OF VEGETABLE CROPS UNIVERSITY OF CALIFORNIA

DAVIS, CALIFORNIA This report is a medium of exchange among members of information and stock relating to tomato genetics. None of the information herein may be used in publications without consent of the respective authors.

REPORT

of the

TOMATO GENETICS COOPERATIVE

Number 27 February, 1977

Department of Vegetable Crops University of California Davis, California 95616

Contents Foreword .......................................................Page 1 Minutes of the Annual Meeting .......................................2 Tomato Genetics Stock Center ........................................2 Linkage Summary .....................................................3 Revised Linkage Map .................................................5 Part I Research Notes ..............................................7 Part II Stock List .................................................27 Part III Directory of Members .......................................38 Part IV Bibliography of Papers on Tomato Genetics and Breeding

Published in 1975 ...............................................48 Part V Financial Statement and Membership Status ..................58 APPENDIX: Interim Report of the Committee on Varietal Pedigrees ....59

Cover design from Mature leaf of multifolia (muf)