Phytopathology · 1993 · 80 citations · 0 references
AgricultureGeneticsPlant SciencesCrop ImprovementGermplasm EvaluationPlant GeneticsCereal BreedingCereal GeneticsDisease ResistancePlant Breeding GeneticsPlant Disease ResistanceResistant Crop VarietiesBase Population ImprovementCultivar ResistanceDisease Resistance TraitsGermplasm Base PopulationGrain ResistancePlant Resistance BreedingResistance Gene MarkersResistance Trait Evaluation
Four parental cultivars with distinct characteristics and gene markers for caryopsis traits were used as a base population to generate F 1 , F 2 , and BCr populations at College Station, TX. These populations were evaluated for grain mold resistance at College Station, TX, in 1990, and at Namulonge and Serere Research Stations in Uganda, in 1991. The presence of a pigmented testa (B 1 -B 2 -), a red pericarp (R-Y-), a thin mesocarp (Z-), and an intensifier gene (I-) were all dominantly inherited. A pigmented testa was the single most important trait conferring grain mold resistance. The red pericarp trait also conferred grain mold resistance, though not as greatly. The effect of a red pericarp was enhanced by the presence of the intensifier gene [...]