Volume 11, Issue 47 (Vol. 11, No. 47 2023)                   2023, 11(47): 21-36 | Back to browse issues page

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Hajihashemi S, Jahantigh O, Fani E. The effect of silicon treatment on improving the physiological response of radish (Raphanus sativus L.) to salinity stress. Plant Process and Function 2023; 11 (47) : 2
URL: http://jispp.iut.ac.ir/article-1-1523-en.html
1- Department of Biology, Faculty of Basic Sciences, Khatam Al-Anbia University of Technology, Behbahan, Khuzestan , hajihashemi@bkatu.ac.ir
2- Department of Biology, Faculty of Basic Sciences, Khatam Al-Anbia University of Technology, Behbahan, Khuzestan
Abstract:   (1532 Views)
The increasing population as well as high demand for cultivation of crops in the area with high salt concentration prompted the application of new strategies to improve plant tolerance to salinity stress. The present study was conducted to investigate the effect of potassium silicate (0, 10 and 20 mM) on reducing the harmful effect of salinity stress induced by sodium chloride (0, 100 and 200 mM) in radish. The experiment was performed as a pot experiment using a Randomized Complete Block Design with four replications. Salinity stress significantly reduced the chlorophylls content, chlorophyll fluorescence (Fv/Fm and PIABS), carbohydrates, proteins and plant biomass, while silicon treatment reduced the adverse effect of salinity stress. In response to salinity stress, proline, the activity of superoxide dismutase, H2O2 accumulation and membrane lipids peroxidation showed a significant increase, while the amounts of phenols, anthocyanins and FRAP antioxidant capacity of plants decreased. Silicon treatment increased phenols, anthocyanins and FRAP antioxidant capacity of salt stressed-plants, which was followed by the reduction of H2O2 accumulation and subsequently reduction of membrane lipids peroxidation. Based on the results of present study, it can be suggested that silicon treatment reduced the adverse effect of salinity on the growth and yield of radish plant through the improvement in chlorophylls content and fluorescence, reduction of reactive oxygen species, and increasing the antioxidants and osmotic compatible solutes.
Article number: 2
Full-Text [PDF 1483 kb]   (581 Downloads)    
Type of Study: Research | Subject: Salt Stress
Received: 2021/03/24 | Accepted: 2021/09/20 | Published: 2022/05/16

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