PJB-1997-7
AGRO-MORPHOLOGICAL RESPONSE OF MAIZE TO WATER STRESS
MUHAMMAD SAEED, MUHAMMAD TAHIR MASOOD, MUHAMMAD BASHIR GILL AND MEHBOOB AKHTAR
Abstract
Agro-morphological response of two maize (Zea mays L.) cultivars viz., Neelum and Akbar to water stress at their different development stages was studied at the agronomic research area, University of Agriculture, Faisalabad. Each cultivar was subjected to water suess either throughout vegetative development, throughout reproductive development or during tasseling and silking only. Water suess enhanced plant maturity and plant sterility substantially compared to control but decreased significantly crop growth rate, number of fertile plants m-2, cobs plant-1, grains cob-1, l000-grain weight, grain yield and harvest index. Water stress during vegetative development delayed tasseling and silking significantly. Both maize cultivars were statistically similar to each other in all parameters except grain yield and harvest index which Were significantly greater in Neelum than Akbar. Neelum grown without water stress produced maximum grain yield of 5.74 t ha-1, while Akbar subjected to water stress throughout vegetative development gave the minimum of 2.96 t ha-1
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