PRODUCTIVITY, FRUIT QUALITY AND PHYSIOLOGICAL ASPECTS OF FRUITING AT DIFFERENT PLANTING DENSITIES AND WITH DIFFERENT ROOTSTOCKS WITH APPLES

Crop yields, weight and size of fruits and physiological aspects of fruiting were recorded from a trial of Golden Delicious and Cox’s Orange Pippin on either M 9 or M 11 planted in four different systems in 1967.

The systems are:

1. 3 x 1 m, single-row, rootstock M 9, 3 333 trees/ha (brutto)

2. 5 x 0,75 m,double-row, rootstock M 9, 2 666 trees/ha

3. 4 x 2 m, single-row, rootstock M 9, 1 250 trees/ha

4. 5 x 3 m, single-row, rootstock M 11, 666 trees/ha.

With the cultivar ‘Cox Orange’ in system A the planting distances were changed into 3 x 2 m by removing each second tree in 1976. Strong yielding trees were thinned by chemicals and by hand with the aim of achieving comparable leaf-fruit ratios with all systems.
In all years and for all trees the management was carried out in an intensive manner.

Symposium on Research and Development on Orchard and Plantation Systems

R. Silbereisen

https://doi.org/10.17660/ActaHortic.1981.114.14