Biosafety of growing cultivars of crops

Abstract

Goal. To study the factors that determine the peculiarities of formation of populations of phytopathogenic micromycetes under the influence of varietal differences of cultivated plants. Methods. Microbiological, phytopathological, visual and statistical. Results According to the developed method, an ecological evaluation of 44 varieties of cultivated plants of different breeding origin has been conducted for the effect on spore formation of phytopathogenic micromycetes. According to the established indicator, tested varieties of plants are divided into groups: environmental risk and environmental safety. Such a distribution is due to the influence of plants of different breeding origin during vegetation on the reproductive capacity of phytopathogenic micromycetes. It was found that such an effect may be caused by physiological and biochemical substances, biogenic elements, endophytic microbiota. Conclusions The results of research confirm the expediency of evaluating varieties and hybrids of cultivated plants as an ecological factor for the formation of the phytopathogenic background, which will enable to solve the problem of controlling the population of phytopathogenic micromycetes in agrocenoses.