Evaluation of cauliflower plant introductions for white mold resistance

摘要

White mold (Sclerotinia sclerotiorum) is an important disease of cole crops, particularly during cool, damp seasons. The disease is of particular importance to the storage cabbage industry as it results in white mold growth on stored cabbage heads and the consequent wastage of several wrapper leaves per head. White mold is also a serious problem during seed production of broccoli and cauliflower (cottony stem rot). Previous screening of plant introductions of cabbage (Brassica oleracea var. capitata) identified resistance in accessions PI 206942, 175603, 245013, 291998, 246117 and 343628 (Dickson and Petzoldt, 1996). The current study screened the available cauliflower (Brassica oleracea var. botrytis) accessions stored at the USDA-ARS germplasm repository for white mold resistance.