Water Relations Of Coconut Palms As Influenced By Environmental Variables
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Date
1988
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Abstract
The influence of the agrometeorological parameters of radiation, temperature and vapour pressure deficit (VPD) on the development of stress in coconut palms (Cocos nucifera l. ) was studied. A steady state porometer was employed to measure both meteorological parameters and stomatal resistance under field conditions. Between 10.00 and 12.00 hours there were increases in radiation, temperature and vapour pressure deficit (VPD). During this period the stomatal resistance reached a maximum and the leaf water potential (¥) was reduced. During the wet season there was low radiation, temperature and VPD which resulted in the palms showing low stomatal resistance, whereas during the dry season the reverse situation occurred. West Coast Tall palms responded to dry weather through a high leaf diffusive resistance, while the hybrid dwarf X tall was susceptible to stress conditions.
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Agric.Forest Meteorol. 1988 v-43 i-3-4 p 193-199