Peculiarities of growth and fructification of apricot plants in Moscow area

Abstract

The analysis of long-term experimental data on growth and efficiency of an apricot at cultivation on clonal stocks is submitted. It is shown, that in conditions of Moscow area apricot varieties had high winter hardiness and good fructification. Development of plants, their efficiency and durability was essentially influenced not only by the variety, but also the rootstock and the degree of their compatibility. There was marked the reduction of growth and dimensions of the crone in comparison with the seed stock of the cherry plum on the rootstock 140-1 and SVG-11-19. Acceleration of the introduction into fructification was promoted by clonal rootstocks OD-2-3 and 140-1. The greatest efficiency was characteristic for stock/scion combinations Samarskiy on OD-2-3, Samarskiy on 13-113, Lel on OD-2-3. Reduction of productivity and durability of trees on rootstocks 140-1 and SVG-11-19 is connected with the deterioration of the general common condition of the plants, caused by winter damages and insufficient compatibility. For the multiplication of apricot northern varieties it is recommended to use the clonal rootstocks 13-113, OD-2-3 and the seed rootstock of the cherry plum Fundamentalnaya.