PJB-2012-132
RESPONSE OF GROUNDNUT (ARACHIS HYPOGAEA L.) GENOTYPES TO PLANT GROWTH REGULATORS AND DROUGHT STRESS
AYUB KHAN1*, JEHAN BAKHT2, ASGHARI BANO3 AND NASRULLAH JAN MALIK4
Abstract
The present study was carried out to investigate the physiological (relative water content) pod dry weight, pods plant-1, pod yield (kg plot-1), shelling (%), plant height and biochemical (endogenous ABA level) traits of peanut cultivar Swat Phalli-96 under drought stress. The result showed that drought stress significantly (p0.05) effect on various parameters under drought stress conditions. However, foliar application of ABA (10-4 M) partially ameliorated the adverse effects of drought stress on growth and yield components. Foliar application of ABA to plants when subsequently exposed to drought stress resulted in elevated levels of endogenous ABA. The endogenous ABA levels in shoot increased earlier in response to applied ABA than that of root.
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