Effectiveness of salicylic acid in mitigating salt-induced adverse effects on different physio-biochemical attributes in sweet basil (Ocimum basilicum L.) |
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| Authors: | K M Elhindi S M Al-Amri E M Abdel-Salam N A Al-Suhaibani |
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| Institution: | 1. Department of Plant Production, College of Food and Agriculture Sciences, King Saud University, Riyadh, Saudi Arabia;2. Department of Vegetable and Floriculture, Faculty of Agriculture, Mansoura University, Mansoura, Egypt;3. Department of Biology, College of Science and Art, Shaqra University, Shaqra, Saudi Arabia;4. Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia |
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| Abstract: | The objective of this study was to determine the effects of foliar salicylic acid (SA) on salt tolerance of sweet basil seedlings by examining growth, photosynthetic activity, total osmoregulators, and mineral content under salinity. Salinity treatments were established by adding 0, 60, and 120 mM sodium chloride (NaCl) to a base nutrient solution. The addition of 60 and 120 mM NaCl inhibited the growth, photosynthetic activity, and nutrient uptake of sweet basil seedlings, and increased the electrolyte leakage and the plant contents of proline and Na. Sweet basil seedlings were treated with foliar SA application at different concentrations (0.0, 0.50, and 1.00 mM). Foliar applications of SA led to an increase in the growth, chlorophyll content, and gas exchange attributes. With regard to nutrient content, it can be inferred that foliar SA applications increased almost all nutrient content in leaves of sweet basil plants under salt stress. Generally, the greatest values were obtained from 1.00 mM SA application. |
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| Keywords: | sweet basil membrane permeability proline protein chlorophyll ionic composition gas exchange characteristics |
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