STUDY OF SWEET CHERRY GENE POOL, SELECTION OF DONORS AND SOURCES OF BREEDING SIGNIFICANT TRAITS TO CREATE THE ADAPTIVE VARIETIES
According to the results of long standing monitoring the sweet cherry gene pool in the collection of the Crimean OSS, the winter hardiness sources and varieties that transmit the trait to posterity as donors are recommended. Genotypes corresponding to the climatic conditions of a particular locality by the timing of the beginning and duration of flowering were identified. The sources of early and late ripening, early maturity and adaptability, as well as donors and sources of large fruits are proposed. The use of sources and donors of valuable traits in the directed selection of sweet cherry made it possible to obtain the new adaptive, high-quality elite hybrids that have an advantage over existing varieties.