Role of growth regulators and plant water extracts on the productivity and water use efficiency of wheat genotypes under limited water supply

Abstract

Empowerment of wheat genotypes by application of growth regulators, compatible solutes and plant extracts under water restriction is an important strategy for getting sustainable yield. Field trail was performed at the research area of the Faculty of Agricultural Sciences, Ghazi University, Dera Ghazi Khan, Pakistan. Three wheat cultivars Aas-2011, Faisalabad- 2008 and Triple dwarf-1 were subjected to drought stress (skipping the irrigation at grain filling stage). The wheat genotypes were subjected to treatments viz., T₁ i.e. All normal irrigation without application of abscisic acid (ABA), salicylic acid (SA), moringa (MLE) and mulberry leaf water extract (MBLE), T₂­ i.e. skipping the irrigation at grain filling stage and application of 2µM ABA, T₃ i.e. skipping the irrigation at grain filling stage and application of 10 m mol SA, T₄ i.e. skipping the irrigation at grain filling stage and application of 15% MLE and T₅ i.e. skipping the irrigation at grain filling stage and application of 10% MBLE. The experiment was laid out in Randomized Complete Block Design with factorial arrangement and repeated three times. From this study it is concluded that Aas-2011 shown best result under drought condition by applying growth regulators and plant water extracts.

rs and plant water extracts.