Soybean cultivars adapted to southern Brazil differ in their reaction to Globisporangium irregulare, G. ultimum var. sporangiiferum and Pythium conidiophorum

In Brazil there is little information on the reaction of soybean cultivars to Globisporangium and Pythium species that can cause damping‐off. Thus, the objective of this study was to characterize the reactions to Globisporangium irregulare isolate UPFOM03, G. ultimum var. sporangiiferum isolate UPFPAN06 and Pythium conidiophorum isolate UPFSA03 of 50 cultivars adapted to southern Brazil. The experiment was carried out twice in a randomized complete block design with three replications. A root rot assay was performed in a growth chamber and emergence (%), emergence speed index (ESI), total dry mass per seedling (TDM; g) and root rot severity index (RRSI) were determined. There was a significant (p