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Resistance

Resistance to Sugar Beet Storage Rot Pathogens. W. M. Bugbee, Plant pathologist, U.S. Department of Agriculture, Science and Education Administration, Agricultural Research, and adjunct professor, Department of Plant Pathology, North Dakota State University, Fargo 58105; Phytopathology 69:1250-1252. Accepted for publication 23 June 1979. This article is in the public domain and not copyrightable. It may be freely reprinted with customary crediting of the source. The American Phytopathological Society, 1979. DOI: 10.1094/Phyto-69-1250.

Laboratory storage rot evaluations were made of sugar beet introductions from the USSR and the progeny of subsequent selections. Contrary to reports by research workers in the USSR, selection for resistance to storage rot caused by Botrytis cinerea generally did not result in resistance to Phoma betae, another important storage rot pathogen. However, a U.S. breeding line with resistance to crown rot caused by Rhizoctonia solani had a high level of resistance to storage rot caused by P. betae.