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Dominant Resistance to Rust in Red Clover. Stephen Diachun, Department of Plant Pathology, University of Kentucky, Lexington 40506; Lawrence Henson, Department of Plant Pathology, University of Kentucky, Lexington 40506. Phytopathology 64:758-759. DOI: 10.1094/Phyto-64-758.

A red clover plant resistant to rust was selected in 1965 from a population of Lakeland seedlings inoculated with uredospores of an isolate of Uromyces trifolii var. fallens from red clover. In F₁ populations from crosses between the resistant plant (KyCL75) and several susceptible clones, resistant and susceptible plants occurred in approximately equal numbers, indicating that resistance is dominant and that clone KyCL75 is heterozygous.