Diversity of Macrophomina phaseolina from cotton in Egypt: Analysis of pathogenicity, chlorate phenotypes, and molecular characterization FT Variabilitat agyptischer Baumwollisolate von Macrophomina phaseolina: Anallyse der Pathogenitat und von Chlorat-Phanotypen sowie ihre molekulare Charakterisierung

Omar, M.R.; Abd-Elsalam, K.A.; Aly, A.A.; El-Samawaty, A.M.A.; Verreet, J. -A.

Journal of Plant Diseases and Protection 114(5): 196-204


Pathogenicity of 21 isolates of Macrophomina phaseolina was tested on three cotton cultivars under greenhouse conditions. Analysis of variance (ANOVA) showed that the main effects of both isolates (P= 0.000) and cultivars (P= 0.000) were very highly significant sources of variation in post-emergence damping-off and survival. Isolate x cultivar interaction was also a significant source of variation in post-emergence damping-off (P= 0.03) and survival (P= 0.04).