Evaluation the effect of Salicylic acid on some quantitative, qualitative and growth on salt stress in Basil(Ocimum basilicum L.) plant

Many researches have been done on the inhibition of salt stress in plants. In this study was to evaluate the effect of foliar application of salicylic acid in inhibition of salt stress on plant growth and yield Basil, an experiment were done in a completely randomized design with 9 treatments, 3 replicates each containing 5 plants. Sodium chloride at a concentration of 50 and 100 mg per liter and also salicylic acid in both Level 1 and 2 mM was used. Distilled water is used as the control. Salicylic acid spraying and soil iirigation with potassium chloride solution (200 mL per pot) was conducted for one week every two days. Morphological and physiological traits such as fresh and dry weight of shoot and root, leaf chlorophyll content, vitamin C, proline and superoxide dismutase activity was evaluated. The results showed that treatment with salicylic acid 2 mM greatest impact on improving the morphological and physiological traits and all of results were significant at 1% level. Also the correlations between all traits at 1% level statistically, were significant.