Crop Science · 1975 · 27 citations · 0 references
AgricultureGeneticsPlant SciencesBreeding For Disease ResistanceCrop ProtectionPlant GeneticsDisease ResistanceDisease Resistance GeneticsPlant Disease ResistanceResistance GenesResistant Crop VarietiesRust DiseasesDisease Resistance TraitsInbred Line EvaluationInbred Line ImprovementPlant Resistance GenesResistance Trait EvaluationRust Disease Resistance GenesRust Resistance BreedingSingle-gene Inheritance
Southern corn rust ( Puccinia polysora Underw .) has caused losses in late‐planted maize ( Zea mays L.) in the southern United States in 1972, 1973, and 1974. Two susceptible × resistant crosses to this rust were made, and the parents, F 1 F 2 , and BC 1 populations were studied in the greenhouse for their response to this rust. A single dominant gene for resistance to corn rust was found in a recovered inbred line (B1138TRpp). The original source of resistance (B1138T) comes from South Africa and has resistance to Bipolaris turcicum (Pass.)Shoemaker.