MONITORING OF RESISTANCE OF COLLECTION VARIETIES AND SAMPLES OF WINTER BARLEY TO PATHOGENS COMMON IN THE ZONE
Winter barley is a valuable grain crop, widely in demand in the Kuban region. The high productivity of new varieties, the precocity and unpretentiousness of the culture, determined its place in the production of farmers of the region. Today, varieties of various originators are cultivated in the fields, many of them meet the modern requirements of agricultural producers, but require additional fungicidal protection. The creation and introduction of stable forms in the fields is a difficult, but solvable breeding task. To create immune varieties, a source material with resistance to pathogens common in the zone is needed. Assessment and identification of such forms is possible with a wide range of diverse genetic material. The scientific article presents the results of studying the stability of 90 collectible varieties of winter barley of various origins in the natural field conditions of the central zone of the Krasnodar region. Experimental data on the variation of the infectability of plants with powdery mildew, reticulated helminthosporiosis and dwarf rust are presented. The forms showing resistance to both one pathogen and three have been identified. The yield of the identified stable samples is shown.