Evaluation of Resistance in Vicia faba to Two Isolates of the Rust Fungus Uromyces viciae-fabae from Manitoba. K. Y. Rashid, Research Associate, Department of Plant Science, University of Manitoba, Winnipeg, Manitoba, Canada R3T 2N2. C. C. Bernier, Professor of Plant Pathology, Department of Plant Science, University of Manitoba, Winnipeg, Manitoba, Canada R3T 2N2.. Plant Dis. 68:16-18. Accepted for publication 7 July 1983. Copyright 1984 The American Phytopathological Society. DOI: 10.1094/PD-68-16.

Reactions of faba bean (Vicia faba) accessions from various regions of the world to single-pustule isolates SP3 and SP51 of the rust fungus Uromyces viciae-fabae were evaluated in the greenhouse. Accessions with at least one resistant plant of eight tested were common and a few accessions with several resistant plants were also observed. After three cycles of testing and selfing, 117 uniform lines were grouped into nine classes based on their reactions to the two rust isolates. Eleven lines showed a high level of resistance to both rust isolates and eight lines showed a high level of resistance to SP51 and were moderately resistant to SP3. Additional useful combinations of resistance included lines with moderate resistance to SP51 and high to moderate resistance to SP3 and lines with a high level of resistance to SP3 and moderate resistance to SP51. Resistant accessions identified in this study originated from six regions of the world.