The role of Prunus cerasifera Ehrh. in the origin, evolution and improvement of stone fruit cultivars

At Krymsk Experiment Breeding Station of VIR, as a result collecting, studying, and selective use myrobalan plum genetic diversity, the intraspecific taxonomy species Prunus cerasifera Ehrh. was clarified. Donors traits significant for breeding were identified and, with their use, adaptable cultivars plum, Russian clonal rootstocks stone fruit plants developed. Intraspecific classification P. is proposed, subspecies: subsp. (typical plum); orientalis (M. Pop.) Erem. et Garcov. (Oriental macrocarpa (large-fruited plum). Within , varieties identified: var. (typical, or Krymsk); georgica (Georgian); iranica (Koval.) (Iranian); nairica (Armenian); pissardii Carr. (Pissard); taurica (Kost.) (Taurida). The participation in origin spp. brigantiaca Vill., cocomilia Tem., spinosa L. traced. Involvement large-fruited hybridization blackthorn contributed to manifestation an exceptional polymorphism among hybridogenic domestica ( × ). As between Chinese varieties, new cultigen emerged – (× rossica Erem.). By now, 127 this 7 crops have been These are zoned Russia number other countries.