Crowned apple tree development in the nursery and their behaviour in the orchard in the first two years after plantation

Abstract

The investigations were made in the fruit nursery of the joint stock company “Fruit Nurseries”. It was studied the production technology of apple trees of “knip-baum” type and their later development in a superintensive orchard of the farm “I. Sitari”. There were studied the varieties Idared, Golden Delicious Reinders, Jonagold Boerekamp Early Queen, Granny Smith, Jonagored, Gloster and Čampion grafted on the M 9 rootstock. It was established that the grade of striking of the bench grafts of the varieties from the first field of fruit nursery was 96,0-99,0 %, the scions’ height was 94-126 cm. In the second field the obtained results correspond to the first category of the actual standards and have the tree height of 166-189 cm, trunk diameter – 16,5-17,2 mm, the quality of sylleptic shoots – 4,5-11,0 pieces/tree and to the average length of the apple trees. The first obtained yield in the orchard in the first year after plantation was 0,16-1,30 t/ha, in the second year, depending on the variety, was 4,80-11,60 t/ha.