INFLUENCE OF MYCOSIS LOAD ON YIELD AND QUALITY OF WINTER WHEAT GRAIN

To identify and select snow mold-resistant genotypes, 50 varieties of winter soft wheat (Triticum aestivum L.) various origins were tested under conditions severe biotic stress. The study was conducted on natural infectious backgrounds (factor A) in 2019-2020 2020-2021 B) the Republic Tatarstan. predecessor is pure steam. Sowing dates are optimal for zone. Local populations Microdochium nivale used to create an background. Meteorological during years research favored development mold. Infection plants with disease, both against backgrounds, higher 2021. With artificial infection M. nivale, collection nursery affected by mold a strong (from 82 100%) degree. On average, over two years, it than background, 38.9%. Selyanka, Nadezhda, Yasochka, Barkan, Luganchanka, Zavichanka, Rita, TAW 42791/80 varieties, which can be considered tolerant Varieties best yield indicators, formed largest experiment (more 35 g) high-grade grain 746 g/l) recommended inclusion crossbreeding programs resistant wheat.