University of Tehran Press Iranian Journal of Soil and Water Research 2008-479X 49 5 2018 11 22 Alkalinity stress, salicylic acid and soil type interactions on growth parameters in Mung bean (Vigna radiate) Alkalinity stress, salicylic acid and soil type interactions on growth parameters in Mung bean (Vigna radiate) 1083 1093 68199 10.22059/ijswr.2018.241960.667764 FA Ali Asshraf Amirinejad Assistant professor, Department of soil Science and engineering, Faculty of Agriculture, Razi University, Kermanshah, Iran Mojgan Bahrami MSc student, Department of Soil Science and engineering, Faculty of Agriculture, Razi University, Kermanshah, Iran Mokhtar Ghobadi Associate professor, Department of Agronomy, Faculty of Agriculture, Razi University, Kermanshah, Iran Journal Article 2017 10 18   Salicylic acid plays a vital role in increasing the resistance of plants to alkalinity stress. In this research, the interaction of alkalinity stress, salicylic acid and soil type on Mung bean growth parameters were investigated. This experiment was conducted as a factorial based on a complete randomized design with three replications in greenhouse of Razi University. Treatments included alkalinity stress (Sodium bicarbonate at three levels 0, 20 and 40 mM), salicylic acid at four levels (0, 250, 500 and 750 μM) and two soil types. The results showed that although alkalinity stress significantly reduced the growth parameters such as plant height, root/shoot ratio, number of active root nodes, leaf area and leaf relative water content and increased proline content of the plant at 1% level, but in contrast, salicylic acid spray mitigated them. Furthermore, there was a significant difference between the two soil types in terms of reducing the effects of stress. In general, the concentration of 500 mM salicylic acid, as an optimum concentration, could neutralize the effects of extreme tension in alkalinity.    Salicylic acid plays a vital role in increasing the resistance of plants to alkalinity stress. In this research, the interaction of alkalinity stress, salicylic acid and soil type on Mung bean growth parameters were investigated. This experiment was conducted as a factorial based on a complete randomized design with three replications in greenhouse of Razi University. Treatments included alkalinity stress (Sodium bicarbonate at three levels 0, 20 and 40 mM), salicylic acid at four levels (0, 250, 500 and 750 μM) and two soil types. The results showed that although alkalinity stress significantly reduced the growth parameters such as plant height, root/shoot ratio, number of active root nodes, leaf area and leaf relative water content and increased proline content of the plant at 1% level, but in contrast, salicylic acid spray mitigated them. Furthermore, there was a significant difference between the two soil types in terms of reducing the effects of stress. In general, the concentration of 500 mM salicylic acid, as an optimum concentration, could neutralize the effects of extreme tension in alkalinity.  https://ijswr.ut.ac.ir/article_68199_98fb0eb7caba52699e0bd3ba1378afba.pdf