Fodder quality parameters study in introgressed stay green lines on sorghumD.M. PARKHE, B.D. BORADE, S.P. MEHTRE, S.B. BORGAONKAR AND M.D. PANDIT

Sorghum [Sorghum bicolor (L.) Moench] is selfpollinating crop and belongs to graminae family.

Sorghum is the fifth most important cereal crop in theworld. It is dietary staple food of more than 500 millionpeople in more than 30 countries of Africa, Asia, Oceaniaand the America. Sorghum carries out C4 photosynthesiswhich makes it adoptable to fluctuating environmentalconditions. Drought stress is the second most importantabiotic constraint after soil nutrient deficiency for sorghumproduction globally. It is well adopted to semi-aridenvironment as it makes efficient use of available waterin the soil under limited water conditions. Hence, it isregarded model crop for studying drought tolerance amonggrass species. Drought condition may occur at any stagesof its growth which may cause premature leaf senescencewhich in turn may leads to stalk lodging and significantyield losses. The plant character associated with toleranceto terminal drought is called “stay green”. In stay greensenescence start on schedule but proceeds thereaftercomparatively slow and chlorophyll is retained. Thecharacter is consider as valuable trait as it improves,genotype adaptation to drought stress condition. The linesare photosynthetically active as compared to genotypesnot possessing this trait.

Therefore, the study was undertaken among the

character of S35 based stay green QTLs introgressedbackcross progenies to assess fodder quality parametersstudies in sorghum.

MATERIALS AND METHODSExperiment was conducted at the Experimental Farm

of Sorghum Research Station, Marathwada AgriculturalUniversity, Parbhani during Kharif season (2008-09). Soilwas medium black with moderate moisture retentioncapacity. Experiment was conducted on 24 genotypes inRandomised Block Design with three replications. Theseeds were sown by dibbling method with 45 cm x 15 cmspacing with net plot size 2.70 m x 1.35 m. All therecommended packages of practices were followed togrow the crop. The five sample plants from each linewere harvested separately and bagged properly afterlabeling it. These five plants were selected from eachplot for recording biometric observations. The observationswere recorded on characters viz., plant height, numberof leaves, length x breadth, leaf area per plant, leaf areaindex, leaf dry weight per plant, stem dry weight per plant,total dry weight per plant, green fodder yield, dry fodderyield, harvest index, total sugar content, brix reading atharvest. The statistical analysis of data was carried outby analysis of variance method suggested by Panse andSukhatme (1967).

RESULTS AND DISCUSSIONThe data on mean values are presented in the Table

1. The plant height was significantly influenced at all thestages of crop growth, the genotype S35SG06026recorded significantly higher plant height over checks andrest of the genotypes. The data on mean number of

Correspondence to:D.M. PARKHE, Department of Agricultural Botany,College of Agriculture, Marathwada Agricultural University,PARBHANI (M.S.) INDIAAuthors’ affiliations:B.D. BORADE, S.P. MEHTRE, S.B. BORGAONKARAND M.D. PANDIT, Department of Agricultural Botany,College of Agriculture, Marathwada Agricultural University,PARBHANI (M.S.) INDIA

HIND AGRICULTURAL RESEARCH AND TRAINING INSTITUTE

SUMMARYA field experiment entitled “Study of fodder quality parameters in introgressed stay green lines of sorghum (Sorghum bicolor(L.) Moench)” was conducted at the Experimental Farm of Sorghum Research Station, Marathwada Agricultural University,Parbhani. Introgressed stay green genotype S35SG 06026 recorded more plant height, number of leaves per plant and leaf areaper plant. The introgressed genotypes were found earlier in maturity, more in leaf dry weight, maximum total dry matter, higherbrix and higher total sugar content. Genotype S35SG06026 recorded significantly higher green and dry fodder yield over all thechecks. Several desirable yield determining factors and yield limiting factors in 24 genotypes have been identified. Suchparameters may be helpful in further crop improvement programme. The genotype may be considered for future breedingprogramme for developing varieties suitable for rainfed condition.

Key words : Introgressed, Stay green, Plant height, Leaf area, Fodder quality, Maturity, Brix, Sugar content

Accepted : March, 2010

International Journal of Plant Sciences, (July, 2010) Vol. 5 Issue 2 : 482-484researcharticle

HIND AGRICULTURAL RESEARCH AND TRAINING INSTITUTE[Internat. J. Plant Sci., July, 2010, 5 (2)]

483D.M. PARKHE, B.D. BORADE, S.P. MEHTRE, S.B. BORGAONKAR AND M.D. PANDIT

HIND AGRICULTURAL RESEARCH AND TRAINING INSTITUTE[Internat. J. Plant Sci., July, 2010, 5 (2)]

484

functional leaves per plant revealed that the leavesincreased upto 90 days after sowing and thereafterdecreased. All the genotypes recorded higher number offunctional leaves per plant over the checks.

The genotypes S35SG06026, S35SG07001,S35SG06016, S35SG06025, S35SG06021-A, recurrentparent ICSV 111 and donar parent E36-1 weresignificantly superior than the checks CSH 16, HES 4and RSSV 9.

The introgressed stay green line S35SG06026 hadconsistently more leaf area per plant and leaf area indexper plant at all stages of its growth over the checks.

All the genotypes under investigation were found tobe statistically at par with each other for leaf dry weightper plant. However, the genotype S35SG06026 recordedsignificantly higher leaf dry weight per plant over all thechecks.

The stay green line S35SG06026 recorded higherstem dry weight as well as total dry weight per plant overall the checks.

The introgressed stay green genotype S35SG06026

recorded highest green fodder yield followed byS35SG07001 and S35SG06003 over the checks.

The introgressed genotype S35SG06026 recordedhigher green and dry fodder yield over rest of thegenotypes and all the checks.

The stay green genotype S35SG06026 recordedsignificantly higher mean brix at physiological maturityand highest total sugar content over other genotypes andall the checks. Harvest index is a function of grain yieldand dry matter production. Higher harvest index leads tohigher grain yield and fodder yield. Introgressed genotypeS35SG 06026 recorded higher harvest index than all othergenotype followed by S35SG 06015 which were at par toeach other.

Results are in agreement with Babu and Reddy(1971), Rosenow et al. (1977), Rao and Singh (1978),McBee and Miller (1982), Chowdhary et al. (1987), VanOosterom et al. (1996), Rana et al. (1998), Andrew etal. (2000), Borell et al. (2000), Howarth and Howarth(2000), Yadav et al. (2002), Kadam et al. (2002), Awariet al. (2003),

REFERENCES

Awari, V.R., Gadakh, S.R., Shinde, M.S. and Kusalkar, D.V. (2003).Correlation study of morphophysioloigcal and yieldcontributing characters with grain yield in sorghum.Ann. Plant Physiol., 17(1):50-52.

Babu, A.R. and Reddy, R.R. (1971). Rate of dry matterproduction in different plant parts at various growthstages in sorghum. Andhra agric. J., 18(3) : 85-89.

Borell, A.K., Hammer, G.L. and Henzell, R.G. (2000). Doesmaintaining green leaf area in sorghum improve yieldunder drought? II. Dry matter production and yield.Crop Sci., 40:1037-1048.

Choudhari, S.D., Kulkarni, D.N., Chundurwar, R.D. and Rao,N.G.P. (1987). Evlauation and selection of diversesorghum genotypes for high energy, grain and biomassproduction technology and application for alternativeuse of sorghum. Proc. of the National Seminar held atMAU, Parbhani, pp. 160-168.

Howarth T. and Howarth, C.J. (2000). Five way to stay green.J. Expt. Bot., 51:329-337.

Kadam, G.N., Gadakh, S.R. and Awari, V.R. (2002). Physiologicalanalysis of Rabi sorghum genotypes for shallow soil.Maharashtra J. agric. Univ., 27(3):274-276.

McBee, G.G. and Miller, F.R. (1982). Carbohydrates in sorghumculms as influenced by cultivars spacing and maturityover a diurnal period. Crop Sci., 22:381-385.

Panse, V.G. and Sukhatme, P.V. (1967). Statistical Methods forAgricultural Workers, ICAR Publication, New Delhi(4th Ed.), pp. 218-220.

Rana, V.K.S., Daljit Singh and Ahluwalia, M. (1998). Multipleregression equation and selection for grain and fodderyield for Sorghum vulgare. Indian J. Genet., 58 (4) :485-493.

Rao, N.K.S. and Singh, S.P. (1978). Contribution of stem sugarand different photosynthetic plant parts into graindevelopment in sorghum. INSA InterdisciplinarySymp. On photosynthesis and productivity. Abst.Papers, pp 56-57.

Rosenow, D.T., Johnson, J.W., Frederiksen, R.A. and Miller,F.R. (1977). Relationship of non senescence to lodgingand charcoal rot in sorghum. In Agronomy abstracts,ASA, Madison, WI., 98:69-80.

Van Oosterom, E.J., Jayachandran, R. and Bidinger, F.R. (1996).Diallel analysis of the stay green trait and itscomponents in sorghum. Crop Sci., 36:549-555.

Yadav, R., Grewal, R.P.S. and Pahuya, S.K. (2002). Assessmentof variability for fodder yield and its component traitsin forage sorghum (Sorghum bicolor). Indian J.agric. Sci., 72(7) : 428-430.

FODDER QUALITY PARAMETERS STUDY IN INTROGRESSED STAY GREEN LINES ON SORGHUM

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