ABSTRACT
Pyrus L. is a member of the subtribe Pyrinae, tribe Pyreae, subfamily Spiraeoideae (formerly Maloideae), family Rosaceae. Among the widely distributed in Euro Asia, 40 species of the genus Pyrus, Pyrus communis L., and P. pyrifolia (Burm.) Nak. are the main edible pear species; however, P. communis are of the greatest economic value [1]. Most cultivars, grown in temperate zones, were created from this species. Many researchers identify intraspecific taxon-P. communis subsp. domestica (Medik.) Domin [2]—which enumerates over five thousand pear cultivars [3], and only a small percentage of them are cultivated commercially [4]. Pear cultivars grown in Japan, China, and other countries of Eastern Asia belong mostly to P. pyrifolia [1, 4].
