Host resistance for managing soilborne diseases in ...cesantabarbara.ucanr.edu/files/275390.pdfin...
37
Host resistance for managing soilborne diseases in strawberry production Kelly Ivors Horticulture & Crop Science Cal Poly Strawberry Center & Gerald Holmes Cal Poly Strawberry Center
Transcript of Host resistance for managing soilborne diseases in ...cesantabarbara.ucanr.edu/files/275390.pdfin...
Host resistance for managing soilborne diseases
in strawberry production
Kelly IvorsHorticulture & Crop ScienceCal Poly Strawberry Center
& Gerald Holmes
Cal Poly Strawberry Center
NEXT GENERATION DISEASE RESISTANCE BREEDING
1 = highest priority; 2 = medium priority; 3 = lowest priority; N = non-priority.
SD = short-day, DN = day-neutral, and NP = nursery production.
R-gene = resistance gene, QTL = large-effect quantitative trait locus, complex = polygenic, complex genetics, and ? = unknown or hypothesized.
Fields infested on the campus of Cal Poly:
Macrophomina phaseolinaVerticillium dahliae
Field infested at the Monterey Bay Academy:
Fusarium oxysporum f.sp. fragariae
6 breeding programs90 genotypes• 30 cultivars• 60 elite selections
Cal Poly Trials
Fields infested on the campus of Cal Poly:
Macrophomina phaseolina
March 1, 2017
MACROPHOMINA TRIAL
MACROPHOMINA TRIAL
August 1, 2017
MACROPHOMINA CROWN ROT SUSCEPTIBILITY
MACROPHOMINA CROWN ROT SUSCEPTIBILITY
Monterey: 69% dead
MACROPHOMINA CROWN ROT SUSCEPTIBILITY
Albion: 52% dead
MACROPHOMINA CROWN ROT SUSCEPTIBILITY
Portola: 40% dead
MACROPHOMINA CROWN ROT SUSCEPTIBILITY
San Andreas: 27% dead
UF UC PS PL LC DR
MACROPHOMINA CROWN ROT SUSCEPTIBILITY
Fields infested on the campus of Cal Poly:
Macrophomina phaseolinaVerticillium dahliae
March 21, 2017
VERTICILLIUM TRIAL
July 15, 2017
VERTICILLIUM TRIAL
VERTICILLIUM WILT SUSCEPTIBILITY
VERTICILLIUM WILT SUSCEPTIBILITY
Monterey: 26% dead
VERTICILLIUM WILT SUSCEPTIBILITY
Albion 10% dead
VERTICILLIUM WILT SUSCEPTIBILITY
San Andreas: 8% dead
UF UC PS PL LC DR
VERTICILLIUM WILT SUSCEPTIBILITY
Portola Monterey
San Andreas Albion
VERTICILLIUM TRIAL 2015
Field infested at the Monterey Bay Academy:
Fusarium oxysporum f.sp. fragariae
FUSARIUM TRIAL 2015
FUSARIUM TRIAL 2015
March 20, 2015
This is a map of Rep I in the MBA variety trial, where the soilborne fungus Fusarium oxysporum f. sp. fragariae is established. Each area
surrounded by black lines represents one bed of a different strawberry cultivar (cultivar name listed at the top of each bed). Light orange color =
leaf necrosis; burnt orange color = dead strawberry plant.
FUSARIUM TRIAL 2015
This is a map of Rep I in the MBA variety trial, where the soilborne fungus Fusarium oxysporum f. sp. fragariae is established. Each area
surrounded by black lines represents one bed of a different strawberry cultivar (cultivar name listed at the top of each bed). Light orange color =
leaf necrosis; burnt orange color = dead strawberry plant.
May 15, 2015
FUSARIUM TRIAL 2015
This is a map of Rep I in the MBA variety trial, where the soilborne fungus Fusarium oxysporum f. sp. fragariae is established. Each area
surrounded by black lines represents one bed of a different strawberry cultivar (cultivar name listed at the top of each bed). Light orange color =
leaf necrosis; burnt orange color = dead strawberry plant.
July 23, 2015
FUSARIUM TRIAL 2015
0.3
0.6
0.9
1.7
2.3
4.1
9.9
16.4
26.7
32.3
33.3
53.2
55.2
75.7
96.5
0.00 20.00 40.00 60.00 80.00 100.00
Petaluma
Fronteras
Safari
Portola
Festival
San Andreas
Ventana
Winterstar
Sensation
Grenada
Sabrina
Albion
Radiance
Monterey
Sweet Ann
Percent Mortality on July 23, 2015
FUSARIUM TRIAL 2015
0.3
0.6
0.9
1.7
2.3
4.1
9.9
16.4
26.7
32.3
33.3
53.2
55.2
75.7
96.5
0.00 20.00 40.00 60.00 80.00 100.00
Petaluma
Fronteras
Safari
Portola
Festival
San Andreas
Ventana
Winterstar
Sensation
Grenada
Sabrina
Albion
Radiance
Monterey
Sweet Ann
Percent Mortality on July 23, 2015
FUSARIUM TRIAL 2015
Monterey: 75% dead
0.3
0.6
0.9
1.7
2.3
4.1
9.9
16.4
26.7
32.3
33.3
53.2
55.2
75.7
96.5
0.00 20.00 40.00 60.00 80.00 100.00
Petaluma
Fronteras
Safari
Portola
Festival
San Andreas
Ventana
Winterstar
Sensation
Grenada
Sabrina
Albion
Radiance
Monterey
Sweet Ann
Percent Mortality on July 23, 2015
FUSARIUM TRIAL 2015
Albion: 53% dead
0.3
0.6
0.9
1.7
2.3
4.1
9.9
16.4
26.7
32.3
33.3
53.2
55.2
75.7
96.5
0.00 20.00 40.00 60.00 80.00 100.00
Petaluma
Fronteras
Safari
Portola
Festival
San Andreas
Ventana
Winterstar
Sensation
Grenada
Sabrina
Albion
Radiance
Monterey
Sweet Ann
Percent Mortality on July 23, 2015
FUSARIUM TRIAL 2015
San Andreas: 4% dead
0.3
0.6
0.9
1.7
2.3
4.1
9.9
16.4
26.7
32.3
33.3
53.2
55.2
75.7
96.5
0.00 20.00 40.00 60.00 80.00 100.00
Petaluma
Fronteras
Safari
Portola
Festival
San Andreas
Ventana
Winterstar
Sensation
Grenada
Sabrina
Albion
Radiance
Monterey
Sweet Ann
Percent Mortality on July 23, 2015
FUSARIUM TRIAL 2015
Portola: 2% dead
CULTIVAR EVALUATION TABLE
CONCLUSIONS
High levels of resistance
Wide range of susceptibility in germplasm
Strawberry Center to continue host resistance screening for additional diseases…
THANKS TO…
