ISHS Acta Horticulturae 173: International Conference on Peach Growing
PEACH FLOWERS STERILITY AND ITS CONSEQUENCES ON PRODUCTIVITY |
| Authors: | P. Crossa-Raynaud, B. Soleille, J. Martinez-Tellez, B. Jraïdi |
| Abstract:
Careful observations have been made since 1979 on flowers of two series of peach varieties. 1 to 49 % of the flowers of these varieties have been found to show abnormalities with pistil malformations or some necrosis that prevented fertilization. Among the apparently normal flowers it has been shown that 8 to 40 % of the pistils are not receptive at anthesis, embryo sacs showing degeneration under fluorescent light. These observations summarised show that 80 to 15 % only of the flowers are receptive depending on the varieties, the locations and the climatic conditions of the year. The influence of these observations on tree productivity is discussed. | |
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