ISHS Acta Horticulturae 410: II International Cherry Symposium
THE EFFECT OF STORED RESERVES ON FRUITING OF SWEET CHERRY TREES |
| Authors: | E. Páldi, L. Stéhli, T. Brunner |
| Abstract:
The correlation between increased flowering and/or reduced growth in young 'Schneider' trees and their fruiting tendency, and its expression in terms of chemical composition, was similar irrespective of whether it was induced genetically (through the rootstock effect) or horticulturally (by shoot positioning). The length of the central leader in 'Schneider' trees decreased by 42% on GM 79 rootstocks and by 29% on GM 61 rootstocks. The intensity of flowering of 'Schneider' under irrigated conditions increased 2.8 times and 2.5 times on GM 79 and GM 61, compared to the control trees on Mahaleb rootstocks. Parallel to this, the carbohydrate/nitrogen ratio of the shoots examined increased by 11% on GM 79 and by 7% on GM 61, while the ash content was 29% and 18% greater, respectively. For 'Schneider' trees on Mahaleb rootstocks, the length of the horizontally trained shoots was 23% less than that of the vertical shoots, while the carbohydrate/nitrogen ratio of the horizontal shoots was 15% greater and the ash content 10% higher. | |
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