Optimization of the management and pruning concept of cherry plantations by improving the relationship between growth and f

Abstract

This article describes the research carried out to develop a strategy for the management and pruning of current cherry plantations. The vigour of the variety-rootstock association, crown shape, planting distance, the age of trees and the pruning system have been studied. The studies regarding the establishment of culture systems for the cherry species were carried out in 6 stationary experiments, located on ordinary chernozem, in the southern and central fruit-growing areas of the Republic of Moldova. The growth and fruiting of the Valerii Cikalov, Record, Ferrovia, Kordia, Regina, Stella, Skeena, Bigarreau Burlat, Lapins, Early Star, Samba and Black Star varieties, grafted on rootstocks of the Cerasus mahaleb L., MaxMa 14 and Gisela-6 in different combinations and at different planting distances, have been investigated. High vigor trees are used on non-irrigated soils in association with self-fertile varieties and optimal planting distances that ensure high yields. Cherry trees, grafted on rootstocks of medium-low vigor (Gisela 6) and moderate (MaxMa 14) are used on fertile soils and well-irrigated, provide medium-sized trees, managed entirely from the ground level, early harvests, average yield, reducing costs for harvesting fruits by increasing labor productivity. The investigated cultivar-portaltoi associations are suitable for the pedoclimatic conditions favorable for cultivation in the respective area. The variety-portaltoi associations will have to be selected according to the direct objective, the culture system and the applied technology.