SPECIFIC FEATURES OF DEVELOPING GENERATIVE BUDS OF LOCAL APRICOT VARIETIES IN THE SUGHD REGION OF TAJIKISTAN

Abstract

The main stages of development of local apricot varieties in Sughd region of Tajikistan are described. The differentiation of flower buds form flower organs formation to pollination and fertilization comprises 2 periods and 6 stages. Their duration depends on temperature and the biological characteristics of an apricot variety. In the valley zones in the Sughd region of Tajikistan, 108 to 115 days are needed for a period of forced rest. The second period is from the beginning of flowering to pollination, fertilization, and pericarp and ovum formation. Its duration is 28 to 32 days. Recommendations are given for protection against unstable frosts, regulation the water and nutrient provision, winter irrigation, winter-spring processing, winter-autumn pruning, smoking and keeping of row spaced under bare fallow conditions.