Abstract
In presented work, the influence of host and fungicide seed treatment on pathogenicity of 4 Fusarium species and M. nivale to wheat and barley seedlings were studied in “in vitro” conditions. The effect of Fusarium and M. nivale inoculation on coleoptile growth retardation (CGR) was analysed with respect to host and the origin of the isolates. Of F. culmorum, F. graminearum and F. poae , there is no significant influence of host (barley or wheat kernels) and isolates origin on pathogenicity of the species. Of M. nivale and F. avenaceum , the pathogenicity was significantly influenced by the host and isolates origin. F. avenaceum was more pathogenic to barley than M. nivale , on wheat opposite. The pathogenicity of tested species towards barley seeds (expressed as CGR) was assessed in downward order: F. culmorum, F. graminearum, F. avenaceum, M. nivale, F. poae . Of the wheat, the order was following: F. culmorum, F. graminearum, M. nivale, F. avenaceum, F. poae . The most aggressive pathogen towards both ...
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