Abstract
The widespread production of grain crops and the rejection of the classical technology of tillage led to a noticeable increase in the prevalence and harmfulness of phytopathogens. First of all, this applies to facultative parasites with a wide specialization - Bipolaris, Fusarium, as well as secondary fungi from the genus Alternaria, Cladosporium, Penicillium, etc. At the same time, there is a change of dominance among these species. The predominant niche is occupied by fungi of the genus Fusarium, instead of species of the genus Bipolaris. The infestation of not only the seed material with this pathogen, but also the root system requires the selection of approaches to reduce this pathogen development. The use of modern fungicides with chemical or biological substances in their composition can protect plants from the pathogen and affect yield.
Highlights
One of the main conditions for obtaining a high grain yield is a high-quality seed material
The purpose of the study is to establish the effectiveness of various groups of fungicides for seed treatment against fungi of the genus Fusarium spp
Phytoexpertize of spring wheat seed material determined a complex of phytopathogens prevailing on seeds, which was represented by fungi of the genera Fusarium Link., Alternaria Nees, Bipolaris sorokiniana Shoemaker (Fig. 1)
Summary
One of the main conditions for obtaining a high grain yield is a high-quality seed material. Infection of seeds with pathogens is one of the reasons for the decrease in this indicator. Pathogens cause the development of root rot, the death of shoots and sprouts, and a decrease in productive bushiness. All this leads to a decrease in crop yield and a deterioration in the technological qualities of grain. Phytopathogens in the seed material can be preserved and transmitted, both inside and on the surface of the seeds by means of the mycelium of the fungus or spores, or as an admixture with seeds. It is possible to detect a hidden infection and identify pathogens with the help of a phytopathological examination of the seed material
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