THE STUDY OF INTRODUCED VARIETIES OF THE BLACKCURRANT ALL-RUSSIAN RESEARCH INSTITUTE OF FRUIT CROP BREEDING COLLECTION FOR RESISTANCE TO BIOTIC FACTORS

Abstract

To create new competitive varieties of black currant, breeders work in the main areas: comprehensive resistance to major diseases and pests, high adaptability, large size of fruits, and suitability for mechanized harvesting. To create black currant varieties that meet modern requirements, it is necessary to identify donors and sources of economically valuable traits and further use them in the breeding process. In order to identify the most promising forms, it is necessary to monitor new varieties of different ecological and geographical origin. This article presents the results of the variety study of introduced blackcurrant varieties obtained from other research institutions in the near and far abroad for resistance to major diseases and pests. Studies have shown that almost all varieties in the Orel region show moderate to high susceptibility to powdery mildew and moderate resistance to columnar rust and bud mite.