ISHS Acta Horticulturae 395: Dormancy and the related Problems of Deciduous Fruit Trees
PROBLEMS IN GROWING DECIDUOUS FRUITS IN WARM TROPICS |
| Author: | S. Subhadrabandhu |
| Abstract:
Growing temperate-zone fruit trees in the tropics is limited by the lack of winter chilling. Although various means exist to solve this problem, good quality fruits of high chilling cultivars pose a problem that is not easily solved. In northern Thailand, temperate-zone fruits are being tried commercially as a substitute crop for the opium poppy. These fruit trees face difficulties in gaining commercial acceptability due to the lack of winter chilling. Attempts have been made to cope with this problem of insufficient chilling by a) introducing cultivars of low chilling requirement, b) adopting the existing cultural techniques of defoliation, branch bending, etc., and c) using rest breaking chemicals and rest avoidance techniques. Some of these attempts have been researched in the highland areas of northern Thailand. The results obtained are discussed in relation to the growing conditions of warm tropical areas which experience warm day and cool night temperatures not suitable for breaking rest of temperate fruit trees. | |
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