Phytohormones Ameliorated the Physiological Changes During Post Germination Drought in Maize

A pot experiment was conducted to find out effect of gibberellic acid (GA), salicylic (SA) and sodium nitroprusside as nitric oxide donor (NO) separately or in combination mitigate the deviations physiological parameters evaluated maize while drought imposed post germination stage. Maize seeds after soaking 10-4 M above mention chemicals were sown pots filled with soil. The leaves sampled at Results indicated that under stress, carotenoid anthocyanin contents increased significantly chlorophyll a b remained unchanged 5% level significance. Pre-treatment solution comprising SA, GA interaction GA+SA enhanced content these pigments stress. While slightly drought. Sugar protein decreased due stress sugar NO only but did not increase by any one applying hormones Likewise SA accumulation proline which acts osmolyte scavenger free radical defend cell injury against Similarly activities oxidative enzymes such peroxidase polyphenol oxidase responded differentially GA, etc, ascorbate catalase became NO. revealed pretreatment are effective tolerate Keywords: Drought, Enzymes, Maize, osmolyte, Pigments DOI: 10.7176/JBAH/11-15-01 Publication date: August 31 st 2021