Supplementary selenium could improve the salt tolerance of Rumex patientia×tianshanicus in coastal saline soils. This could be attributed to enhanced absorption of Na + and K +, enhanced selective transportation of K + from roots to shoots and a lowered Na +/K + ratio in leaves. Appropriate application of selenium (less than 1.5 mg/kg soil) could raise the activity of GSH Px, CAT and POD, alleviate the harm of lipid peroxidation to plant cell membrane and thus strengthen its antioxidization abilit...
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