ISHS Acta Horticulturae 584: VI International Symposium on Computer Modelling in Fruit Research and Orchard Management
THE COMBINED EFFECT OF FRUIT LOAD AND WATER STRESS IN DIFFERENT PEACH FRUIT GROWTH STAGES (PRUNUS PERSICA L.) |
| Authors: | J. Girona, J. Marsal, M. Mata, A. Arbonés, A. Mata |
| Keywords: | Fruit load, peach, water stress, fruit growth stages, leaf water potential, stem water potential |
| Abstract:
The combined effect of fruit load and water stress was analyzed in different fruit growth stages for peach. The results show a high sensitivity of fruit growth in fresh weight to water stress for each fruit growth stage, and a differential sensitivity for fruit growth in dry weight in Stage II compared to Stage I or III. In addition, marked long-term effects on dry matter accumulation were found in trees with deficit applied during previous fruit growth stages. Interactions between fruit load and irrigation treatments in fruit dry weight at Stage II, with higher fruit dry weight in deficit than in fully irrigated trees, indicated possible modification of patterns of fruit carbon gain by applying water deficits during SII. | |
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