THE PRODUCTIVITY OF APPLE TREES DEPENDING ON THE STRUCTURE OF THE CROWN AND THE BIOLOGICAL CHARACTERISTICS OF THE CULTIVAR

This paper presents the results of a study carried out on new apple cultivars, namely ‘Granny Smith’, ‘Gala Buckeye Simmons’, ‘Golden Delicious Reinders’, ‘Red Velox’ and ‘Fuji Kiku’, grafted on ‘M9’ rootstock, which are intended to create high-density orchards in the central part of the Republic of Moldova. During the growth and fruiting periods of the trees, the number of fruit depends on the variety, the age of the trees and the distance from the ground which increases gradually year in year out. The distribution of fruits along the height of the tree depends on the number of branches and leaves on the tree and on the number of fruiting branches. During the periods of growth and fruiting, the trees of the studied cultivars gave an average yield of 10.9 kg/tree.