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Inheritance of collar rot resistance in the tomato breeding lines C1943 and NC EBR-2

Inheritance of collar rot resistance in the tomato breeding lines C1943 and NC EBR-2

Phytopathology 80(12): 1365-1368

Collar rot is a tomato seedling disease caused by the fungus Alternaria solani. Resistant and susceptible parents, F1, F2, and backcross generations were evaluated for collar rot resistance in a greenhouse. Genetic analyses included midparent-hybrid comparisons, diallel analysis, and generation mean analysis. The genotypes C1943 and NC EBR-2 were most resistant to collar rot. Additive and dominant effects were important in controlling the trait, and collar rot resistance was incompletely recessive to susceptibility.

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Accession: 002139395

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