Screening Peas for Resistance to Stem Rot Caused by Rhizoctonia solani. M. A. Shehata, Associate Scientist, Department of Plant Pathology, University of Minnesota, St. Paul 55108. D. W. Davis, Professor, Department of Horticultural Science and Landscape Architecture, and N. A. Anderson, Professor, Department of Plant Pathology, University of Minnesota, St. Paul 55108. Plant Dis. 65:417-419. Copyright 1981 American Phytopathological Society. DOI: 10.1094/PD-65-417.

Three inoculation techniques for screening peas (Pisum sativum) for resistance to stem rot caused by Rhizoctonia solani AG4 were compared. The corn kernel technique gave a consistent separation between resistant and susceptible genotypes in growth chamber and field studies. Among 68 entries, three cultivars, four breeding lines, and one PI line had partial resistance. However, resistance (expressed as a stem reaction) was not uniform within each taxon and varied with environmental conditions.