Priorities of reproduction of clonal stocks and growing of seedlings in Uzbekistan

Abstract

This work is devoted to the issue of cultivation of planting material of apple on clonal stocks to create high-intensity orchards on saline soils. There was reviewed adaptability of clonal stocks to growing conditions in Xorazm oblast, assessed stocks during their reproduction in parent plants through cutting. The studies conducted in 26 types of small-stature forms of stocks showed that М2, М5, М7, М9, ММ102, ММ105, ММ106, ММ109, ММ111 were the most perspective for irrigated fruit-production zone of Uzbekistan. М9, М2, М7 и ММ102 are recommended for regions with severe winters; M9 is for weakly and moderately saline soils; М2, М5, М9, ММ102, ММ106 are the best option for regions with relatively insufficient provision of irrigation water. M9 was the most saline-tolerant. According to [2], the yield of small-stature forms of stocks at a young age (5-7 years) was various: from small (1-6 kg from a tree) - М8, М9, М6, and М11 types, to average (6-10kg) - М1, М2, М3, М4, М5, М7,М13, ММ104, ММ109 and ММ113, and high (11-20 kg) - М25, ММ102, ММ105, ММ106, ММ110 и ММ115.