The pathogenic mycobium in seeds of cultural plant varieties

The number phytopathogenic micromycetes is determined in the seeds of such cultivated varieties cultural plant as soybeans, sunflowers, yellow mustard, buckwheat and thistle, which are grown by organic technology. It shown that differs significantly ranges from 0.2 to 1.3 thousand NCO/g seeds. depends on properties plants variety hybrid, characterized some certain set physiological biochemical characteristics influences formation seed mycobiome it quantitative composition. In these crops we identified species fungi Alternaria alternate Fr., Fusarium oxysporum Schleht, Cladosporium herbarum Lket Gray, Botrytiscinerea Pers. Ex Ascochyta fagopyri Bres., tenuissima (Kunze) Wiltshire, Aspergillus P. Micheliex Haller, Pénicillium Link. was found composition soybean cultivar Kent thistle Riches much more diverse than other dominated A. F. oxysporum, different frequency occurrence. These can cause diseases at stages ontogenesis, produce mycotoxins reduce quality products. Sophia, Sуn sunflower hybrids Oscar Oliver genus аnd (60–90%). affected saprotrophic be reinfected during storage. This reduces its field laboratory germination Saprotrophic dominate impair storage dangerous agrophytocenoses cultivation this variety/hybrid. requires application additional preventive protection measures plants. Mycobioma mustard а Ford represents a small micromycetes. may indicate environmental safety production. Thus, analyzed research results significant differentiation mycobioma. Therefore, order avoid ecologic risks biological contamination agrocenoses, necessary test seeds, density damage.