Studying of collection samples of barley and selection material on infectious background of widespread pathogens in local conditions will allow to allocate steady forms and to apply them in selection of steady grades. The objects of researches were collection samples of summer barley served in quantity of 650 numbers among which 191 were represented by the sorts from former USSR, 108 numbers - from the countries of the Western Europe and 143 numbers - from the countries of the East Europe, 58 numbers - from the USA and Canada, 25 numbersfrom Ethiopia, 9 numbers - from Mexico, Argentina and New Zealand