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Influence of salicylic acid pretreatment on germination and seedling growth of wheat (Triticum aestivum L.) cultivars under salt stress

Mohammad Motamedi, Zahra Khodarahmpour, Farzad Ahakpaz

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Int. J. Biosci.3(8), 226-233, August 2013

DOI: http://dx.doi.org/10.12692/ijb/3.8.226-233


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Salicylic acid is enhances salt tolerance in wheat seedlings and resistance to water deficit. The experiment was applied to determine the effect of salicylic acid pretreatment on wheat germination and seedling growth under salt stress. Traits such as seed germination, root length, shoot length, seedling fresh weight, germination rate and seed vigor index were evaluated. The data obtained in accordance factorial experiment with three replications in a completely randomized design were analyzed using MSTAT-C statistical software. Analysis of variance of the effects of salicylic acid and salinity was significant for all traits, but the cultivars for the characters germination percentage, germination rate and seed vigor index was highly significant and variety effect for other traits were not statistically significant. Comparison of means for main effects showed that the cultivars are different in traits such as, germination, vigor index and germination rate. With increasing salinity, decrease germination percentage, germination rate, and seedling root length and shoot fresh weight and seed vigor. Consumption of salicylic acid in the without consumption increased the root and shoot length in the normal conditions. But there stresses plants Concentration 0/5 mM salicylic acid in 80 mM NaCl treatment not decreased the shoot length and root length and has been Increased in the seedling fresh weight trait. Chamran cultivar response to higher concentrations of SA was more appropriate in terms of salinity.


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Influence of salicylic acid pretreatment on germination and seedling growth of wheat (Triticum aestivum L.) cultivars under salt stress

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