PJB-2018-77
EXOGENOUS APPLICATION OF SALICYLIC ACID IMPROVES PHYSIOLOGICAL AND GAS EXCHANGE PARAMETERS OF MAIZE (ZEA MAYS L.) HYBRIDS UNDER LIMITED WATER CONDITIONS
Muhammad Irfan
Abstract
Drought is one of the most important abiotic factors which acts as a steel bar in the progress of agriculture around the world. Like other crops, cereals also have to bear the brunt of low water availability. A pot experiment was conducted to check the effects of exogenous application of salicylic acid on spring maize. In this experiment, priming, foliar and their combined effects of SA @ 100 mg L-1 were checked at different crop growth stages of maize. In this experiment control was no priming and no spray. Then hydro-priming and distilled water spray at vegetative as well as reproductive growth stages was applied to have a better comparison with SA application. Crop was raised till its maturity. Results of physio-chemical attributes showed that foliar application of SA at the vegetative growth stage of maize helped improve water relations and gas exchange parameters significantly.
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