ISHS Acta Horticulturae 537: III International Symposium on Irrigation of Horticultural Crops
WATER RELATIONS OF HIGHBUSH BLUEBERRY UNDER DROUGHT CONDITIONS |
| Authors: | T. Améglio, X. Le Roux, M. Mingeau, C. Perrier |
| Keywords: | Water relations, hydraulic conductivity, embolism, stomatal conductance, transpiration, Highbush blueberry. |
| Abstract:
A comprehensive study was performed to assess the effect of a drought cycle on the key physiological processes of Highbush blueberry. Water potential, embolism, transpiration (leaf and plant), stomatal conductance were surveyed. The major conclusions of this work are : (i) blueberry is highly sensitive to water deficit (ie. stomatal closure and decrease of transpiration occurred rapidly as water potential decreased) ; (ii) the rapid decrease of stomatal conductance efficiently restricts water loss and thus water potential decrease, preventing embolism occurrence ; (iii) blueberry exhibits a good recovering capacity after rehydration. | |
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