PARTICULARITIES OF THE GRAFT-ROOTSTOCK BIOSYSTEM IN THE VARIETY OF APRICOT NJA 19

Of the species of trees grown in the temperate climate area, apricot is considered one of the most valuable, due primarily to all the excellent taste and the very pleasant flavor of the fruit, the fine consistency and juice of the pulp, which in most cases has a special flavor. In 2017, within an apricot plantation set up in 2000, in a family garden, researches were carried out on how trees grow in the root system. The biological material was the N.J.A. 19 variety grafted on the cherry plum, the trees in the plantation being led in the form of an improved vessel. The purpose of the research is to determine how the roots are arranged in the soil, the depth at which the large mass of the root system is distributed, and the weighting of each thickness category, on depth ranges. Apricot variety N.J.A. 19 shows a good development of the underground part, of the root system, respectively, which is distributed to a depth of 90 cm at a distance of 1 m from the trunk or up to a depth of 70 cm at a distance of 2 m towards the trunk