Effects of 1-aminobenzotriazole on the growth and physiological characteristics of Tamarix chinensis cuttings under salt stress

摘要: Vegetation restoration is a main ecological remediation technology for greening saline and alkaline soils. The objectives of this study were to determine the effect 1-aminobenzotriazole (ABT-1) on growth physiology Tamarix chinensis under salt stress suitable ABT-1 concentration soil salinity (Sc) propagating T. chinensis-cuttings. Cuttings soaked in water solutions at three concentrations(50, 100, 200 mg L−1) propagated pots containing four levels, mild (0.3%), moderate (0.6%), severe (0.9% 1.2%), compared with control. cuttings measured indices physiological biochemical (e.g., chlorophyll content, superoxide dismutase activity, peroxidase malondialdehyde content). was effective improving survival, growth, processes stress. However, there threshold when using facilitate propagation effects insignificant applied low concentrations (  100 mg L−1), limited activities. Under level (Sc ≤ 0.9%), ABT 100 mg L−1 increased content activities leaves reduced accumulation membrane lipid peroxidation effects. As result, enhanced resistance high (> 0.9%) (> 100 mg L−1), regulatory ability seedlings weakened. grew well stress ≤ 0.9% ABT ≤ 100 mg L−1 exhibited relatively adaptability