Articles
HORMONAL AND CARBOHYDRATE CHANGES DURING FINAL SWELL OF PEACH AND NECTARINE FRUITS
Article number
254_16
Pages
109 – 116
Language
Abstract
Final swell of peach and nectarine fruits has been postulated to occur in two distinct phases.
During the first phase (FWIII/DWII) endogenous levels of auxin and gibberellin are increasing.
In the second phase (FWIII/DWIII) an increase in ethylene evolution occurs on the tree.
During Stage III, numerous changes occur in response to these hormonal signals.
Measurements of carbohydrate changes in nectarines and peaches suggested that the accumulation of carbohydrates proceeded throughout Stage III, although an increase in the rate of soluble solids accumulation was detected after the onset of ethylene evolution.
The increase in ethylene evolution during FWIII/DWIII was found to be a useful predictor of fruit maturity in both New Zealand and the United States.
The and skin resistance of attached fruits also decreased in FWIII/DWIII. The potential role of ethylene in the regulation of dry-weight accumulation through changes in carbohydrate content and fruit resistance are discussed.
During the first phase (FWIII/DWII) endogenous levels of auxin and gibberellin are increasing.
In the second phase (FWIII/DWIII) an increase in ethylene evolution occurs on the tree.
During Stage III, numerous changes occur in response to these hormonal signals.
Measurements of carbohydrate changes in nectarines and peaches suggested that the accumulation of carbohydrates proceeded throughout Stage III, although an increase in the rate of soluble solids accumulation was detected after the onset of ethylene evolution.
The increase in ethylene evolution during FWIII/DWIII was found to be a useful predictor of fruit maturity in both New Zealand and the United States.
The and skin resistance of attached fruits also decreased in FWIII/DWIII. The potential role of ethylene in the regulation of dry-weight accumulation through changes in carbohydrate content and fruit resistance are discussed.
Publication
Authors
C. S. Walsh, Anita N. Miller, D. Chalmers, A. Saunders
Keywords
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