Abstract

Abstract Seedlings of component lines of peanut cultivars ‘Early Bunch’ and ‘Floninner’ were inoculated in the greenhouse with spore suspensions of each of 18 isolates of both Cercospora arachidicola and Cercosporidium personatum. Symptoms developed on Florunner lines within 5 to 7 and 9 to 11 days after inoculation with isolates of C. arachidicola and C. personatum, respectively. Symptoms developed on Early Bunch lines within 6 to 8 and 8 to 10 days after inoculation with isolates of C. arachidicola and C. personatum, respectively. Defoliation of Florunner and Early Bunch lines began within 11 to 14 and 14 to 17 days, respectively, following inoculation with isolates of C. arachidicola. Although variation in disease caused by isolates of the fungi was statistically significant, the susceptibilities of the component lines of the cultivars were not significantly different.

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