Динамика патогенеза колоса озимой пшеницы при инокуляции грибами Fusarium spp.

Abstract

A mycological analysis of winter wheat ear components is carried out after the artificial contamination of plants by Fusarium spp. fungi. An essential difference in the aggressiveness of different species of Fusarium genus isolates is marked. From the studied species the most competitive - F. cuimorum is revealed, at the same time the isolates of F. oxysporum are characterized by low aggressiveness against a background of their ability to quick colonization of the host-plants. The highest speed of colonization . is characteristic for F. poae isolates. The sources of winter wheat caryopsises contamination by the fungus Fusarium species are determined.