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Journal of Plant Sciences
Year: 2017  |  Volume: 12  |  Issue: 1  |  Page No.: 46 - 51

Enhancing Salinity Tolerance in Brinjal Plants by Application of Salicylic Acid

Vijayakumar Rajeshwari and Veluswamy Bhuvaneshwari    

Abstract: Background and Objective: The plant hormone, Salicylic Acid (SA) plays an important role in induction of plant defense against various biotic and abiotic stresses. The objective of this study was to investigate the protective role of salicylic acid in alleviating salt stress on brinjal plants. Materials and Methods: Greenhouse experiment was conducted in brinjal plants irrigated with tap water, 100 mM NaCl, marine water-1 and marine water-2 with and without foliar spraying of 0.1 mM SA for every 24 h interval up to 168 h. Plants treated with water alone served as control for analyzing the chlorophyll content, lipid peroxidation and electrolyte leakage. The values are presented in the Mean±Standard deviation and the data was analyzed using two-way analysis of variance (ANOVA) using SAS software (version 9.2). Results: The saline stressed brinjal plants showed decreased chlorophyll content and increased lipid peroxidation and electrolyte leakage levels when compared with the control plants, but the foliar application of SA showed ameliorative effect in the plants with saline stress. Conclusion: This study concluded that salicylic acid treated plants showed protective role and prevented the decrease in chlorophyll content and increase in lipid peroxidation and electrolyte leakage levels caused due to salinity stress.

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