ISHS Acta Horticulturae 553: IV International Conference on Postharvest Science
THE EFFECT OF TOPICAL APPLICATION OF 1-AMINOCYCLOPROPANE-1-CARBOXYLIC ACID ON OLIVE FRUIT ABSCISSION |
| Authors: | A. Ferrante, D.A. Hunter, M.S. Reid |
| Keywords: | olive, ACC, ethylene production, detachment force |
| Abstract:
Hand harvesting of olives represents more than 50% of their total production cost. Therefore, mechanical harvesting has important economic advantages over traditional manual harvest, mainly due to a great reduction in labor costs and harvesting time. Tree shakers and other mechanical devices have been built, but they yield only 40-70% of the fruit, depending on cultivar, maturity stage, tree size, and fruit load (Rouina et al., 1999). Ethylene-releasing chemicals have been applied to olive trees in order to increase the efficiency of mechanical harvesting (Denney et al., 1994; Gerasopoulos, et al., 1999). However, these compounds also cause leaf abscission. If leaf abscission is greater than 15-20%, the following year’s production can be compromised. In this study we report the effects of exogenously supplied ACC on ethylene production and abscission of olive fruits. | |
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