ISHS Acta Horticulturae 296: Tropical Fruits, XXIII I.H.C.
THE EFFECT OF SELECTIVE PRUNING ON YIELD AND FRUIT QUALITY IN 'HASS' AVOCADO. |
| Authors: | John P. Bower, J. G.M. Cutting |
| DOI: | 10.17660/ActaHortic.1992.296.6 |
| Abstract:
The effect of reducing vegetative competition on mineral allocation in avocado was investigated. Avocado trees were either chemically treated with a growth retardant or the competing vegetative flush removed by hand either once at 50% flowering or continuously for six weeks from 50% flowering. The results were then compared to an untreated control. Final yields were similar for all four treatments. Fruit size was increased by the continuous pruning. None of the treatments had any effect on starch reserves. Vegetative pruning increased the concentration of Ca, Mg, K and P. Those treatments which reduced vegetative vigour showed increased mineral accumulation. Removal of vegetative flush did not increase PPO activity. | |
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