Determination of Stomatal Resistance and Transpiration Rate in the Leaves of Coconut (Cocos nucifera L.) Using the Steady State Porometer
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Date
2007
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Abstract
A study has been carried out to determine the Stomatal resistance and transpiration rate in the leaves of young and adult coconut palms. A comparative study made between the intact arid excised leaflets indicated that there was no significant difference between the two in their leaf diffusive resistance until five or six minutes after, excision, but increased with time. Determination of the Stomatal resistance within two minutes after excision of the leaflets, from different whorls of leaves in large number of adult palms revealed the accuracy of the values. Thus, a rapid method for the determination of diffusive resistance and transpiration rate in coconut, especially adult palms has been standardized. Results are discussed with particular reference to the practical difficulties encountered with studies on adult