The study of multivariance in realization of the plum graft and rootstock combinations adaptivity systems to the changing conditions of environment in the Krasnodar region with the use of digital technologies

¹ Federal State Budget Scientific Institution «North Caucasian Federal Scientific Center of Horticulture, Viticulture, Wine-making», 39 str. 40 Let Pobedy, Krasnodar, 350901, Russia
² Peoples’ Friendship University of Russia, 6 str. Miklukho-Maklaya, Moscow, 115093, Russia
³ V.V. Dokuchaev Soil Science Institute, 7 Pyzhevsky lane, Moscow, 119017, Russia

^* Corresponding author: I_d@list.ru

Abstract

The study of rootstocks group, providing the average vigor of growth for the grafted fruit plants, discovered their significant influence on the frost hardiness of the “graft-rootstock” system. The adaptivity of the plum varieties in the different graft and rootstock combinations was studied according to the “frost hardiness” criterion in the stages of the winter and spring development of the flower buds. The computer maps of the plum efficient allocation were created on the studied rootstocks, permitting to lay down the plantings with the lesser risks in the terms of climate fluctuation. It was established, that in the south of Russia the climatic conditions to cultivate Stanley variety on PK SK 1 rootstock, as compared with the rootstock of cherry plum seedling, mostly often used in industrial plantings of plum are mostly favorable. The conducted research contributes to isolation and allocation of the most adaptive graft and rootstock combinations based on their frost hardiness and, consequently, regularity of fruit-bearing and yielding capacity.