ISHS Acta Horticulturae 662: VII International Symposium on Temperate Zone Fruits in the Tropics and Subtropics
PROSPECTS OF TEMPERATE FRUIT CULTIVATION IN INDO-GANGETIC PLAINS |
| Author: | A.S. Dhatt |
| Abstract:
The temperate fruits, like, almond, apple, apricot, peach, plum, pear etc. require an exposure to low, but above freezing, temperatures, for resumption of growth and fruiting, called the chilling requirement. In general, their commercial cultivation is limited by high latitudes, where too much cold kills plant tissues and by the low altitudes, where, the winters are not cold enough to fulfill the chilling requirement. Hutchins (1932) reported that the chilling requirement is met, only, if the plants are exposed to less than 7°C temperature. However, later on, it was found that low-chill cultivars/species of these fruits can partially meet the chilling requirements even at higher temperatures. In order, to find out the suitability of non-temperate regions for growing temperate fruits, various models/formulae were proposed to predict the number of available chilling hours (Chill unit) for a specific location.... | |
Download Adobe Acrobat Reader (free software to read PDF files) | |
