Research and restocking of wheat varieties to pathogens of especially dangerous fungal diseases

Based on the results of immunological assessments and rejection of the material by phenotype, 327 sources and 79 donors of immunity were selected from spring wheat, 27 and 23 from winter wheat, respectively. Applying PCR diagnostic method, Lr genes were found in the selected samples of spring wheat. Screening revealed the presence of the following genes in the studied samples. They are Lr9 , Lr19 , Lr24 , Lr 34 , Lr1 , Lr10 , Lr20 and Lr26 . Within selection samples of the Central Russian branch, the prevalence of lines with the Lr19 gene in combination with inefficient genes Lr10 , Lr20 and Lr26 was revealed. Spring soft wheat cultivation lines adapted to zonal conditions have been developed, combining in their phenotype resistance to the main phytopathogens of the region with valuable economic properties. In 2019, a variety of spring soft wheat in memory of Plahotnik was transferred to the State Export Commission for testing.