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Effects of Gibberellic Acid on Seedling growth, Chlorophyll content and Carbohydrate Metabolism in Okra (Abelmoschus Esculentus L.Moench) Genotypes under Saline Stress

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Author Affiliations

  • 1Department of Chemistry, Government College for Women (Autonomous) Kumbakonam, INDIA

Res.J.chem.sci., Volume 2, Issue (7), Pages 72-74, July,18 (2012)

Abstract

The effect of gibberellic acid on the counteracting of the Nacl 50, 100 and 150 mm induced deleterious effects on okra (Abelmoschus esculentus) genotype was studied. Effects of GA3on salt tolerance of okra were determined by measuring the growth parameters − shoot and root lengths, shoot and root fresh and dry weights and leaf area. The photosynthetic pigments (chlorophylls a,b and carotenoids) content and sugars level were investigated. In response to the interactive effects of GA3 and Nacl treatments. Nacl significantly reduced all growth parameters measured, photosynthetic pigments, as well as sugar contents. The effects of Nacl on the previous parameters were increased with Nacl concentrations. Exogenous application of GA3 counteracted the Nacl deleterious effects on okra genotypes. GA3 enhanced the okra salt tolerance in terms of improving the measured plant growth criteria. GA3 appears to stimulate okra salt tolerance by activating the photosynthetic process.

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