PLUM CLONAL ROOTSTOCKS IN VARIETY-ROOTSTOCK COMBINATIONS FOR INTENSIVE ORCHARDS

Abstract

The article summarizes the results of a 15-year study of clonal plum rootstocks: Opata, Novinka, Gayovata, VVA-1, 146-2, VPK-1, 140-2 on the cultivars Alyonushka, Nezhenka, Orlovsky souvenir, Skoroplodnaya. The rootstock SVG-11-19 was used as a control. Biometric indicators, the safety of trees growing on these rootstocks were studied, an assessment of economically valuable traits of cultivar-rootstock combinations, the degree of flowering and fruiting, yield per hectare, an assessment of freezing, damage by clasterosporium and moniliosis, and the general condition were given. As a result of research, it was found that Alyonushka cultivars on form 146-2 were distinguished by a more restrained tree growth; Nezhenka on VVA-1, VPK-1. One hundred percent safety of plum trees was revealed in the cultivars Alyonushka on the rootstocks of Opata, Novinka, 140-2; A sissy with most of the rootstocks studied, with the exception of the VPK-1 rootstock, Orlovsky souvenir with the exception of the Opata form, Skoroplodnaya on Opatа, Gayovata, VVA-1, 146-2, VPK-1 rootstocks. A comparative study of clonal rootstocks in a garden did not reveal significant differences in the productivity of cultivars – Alyonushka on Novinka, Gayovatа, 146-2, 140-2; Nezhenka at Novinka, Gayovata, 140-2; Oryol souvenir at Novinka; Skoroplodnaya at Opatа, Gayovata, 146-2, VPK-1, 140-2. All cultivars on the studied clonal rootstocks showed high winter hardiness and resistance to clasterosporiosis and moniliosis. There were no visible signs of incompatibility of cultivar-rootstock combinations in the garden.