Vol. 75 No: 5

Title:
Pruning affects carbohydrate accumulation in the shoots and leaves of 'Precoce de Tyrinthe' apricot

Authors:
A. DEN and L. SON

pp: 539-541

Abstract:
This study was conducted in Mut-Mersin, Turkey, to determine the effects of various times of pruning (no pruning = control; only summer (July, August, or September) pruning in 1994 and 1995; only winter pruning in 1995 and 1996; both summer + winter pruning in 1994-1995 and 1995-1996) on the carbohydrate contents of annual shoots and leaves of young 'Precoce de Tyrinthe' apricot trees. Although carbohydrate content in annual shoots was highest in the control trees during the first year, the summer + winter pruning gave the highest values in the second year. In 1995 total sugar and sucrose contents of the leaves was greatest following winter pruning, but starch content was higher in the leaves of control trees. The content of reducing sugars was greatest in leaves of trees pruned in both September + winter. In 1996, levels of total sugars and starch were highest following September pruning, starch content was highest in the control, and; reducing sugars in the leaves were highest following August + winter pruning.

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