EVALUATION OF COMMERCIAL AND COLLECTION VARIETIES OF BARLEY FOR RESISTANCE TO MAJOR FUNGAL DISEASES IN FIELD CONDITIONS

Barley is an important grain feed crop. A significant amount of it is also used for the production of cereals and beer. Barley ranks fourth in the world in terms of sown area (about million hectares) and grain harvest. The volume of barley crops in the Republic of Kazakhstan is reaching 2 million hectare. In 2021-2023 on the experimental field of the Kazakh Research Institute of Agriculture and Plant Growing conducted a field assessment of the resistance of 216 varieties of winter and spring domestic barley origin to the most common fungal diseases in Kazakhstan Over three years of field research, it was possible to obtain objective data on the reaction to infection with a pathogen. Based on the results of phytopathological assessment, sources of resistance to major fungal diseases were selected among barley varieties. We divided the studied varieties into groups based on the degree of resistance (susceptibility) to the causative agents of fungal diseases, highly resistant (damage rate 0%) not detected, resistant: were discovered 59 varieties of winter and spring barley resistant to fungal diseases.