[ Objective ] The paper was to study effects of different salt treatments on growth and physiological activity of sunflower seedlings, in order to provide a theoretical basis for sunflower cultivation in saline soil. ...[ Objective ] The paper was to study effects of different salt treatments on growth and physiological activity of sunflower seedlings, in order to provide a theoretical basis for sunflower cultivation in saline soil. [Method] With 567DW sunflower as the material, effects of different concentrations of NaC1 （0, 0.06, 0. 12, 0. 18, 0.24 mol/L） on growth and physiological activity of sunflower seedlings were studied. [ Result] With the increasing concentration of NaCl, the morphological indexes of sunflower decreased significantly; MDA content increased, while Pro content and POD activity first increased and then decreased. Under the treatment of 0. 12 mol/L, Pro content and POD activity reached the maximum value, respectively. [ Conclusion] The critical salt-tolerance concentration of sunflower was about 0.12 mol/L.展开更多
基金Supported by National Natural Science Funds for Distinguished Young Scholar"Effect of Se and Its Accumulation on Sunflower in the Saline-alkali"(31301851)
文摘[ Objective ] The paper was to study effects of different salt treatments on growth and physiological activity of sunflower seedlings, in order to provide a theoretical basis for sunflower cultivation in saline soil. [Method] With 567DW sunflower as the material, effects of different concentrations of NaC1 （0, 0.06, 0. 12, 0. 18, 0.24 mol/L） on growth and physiological activity of sunflower seedlings were studied. [ Result] With the increasing concentration of NaCl, the morphological indexes of sunflower decreased significantly; MDA content increased, while Pro content and POD activity first increased and then decreased. Under the treatment of 0. 12 mol/L, Pro content and POD activity reached the maximum value, respectively. [ Conclusion] The critical salt-tolerance concentration of sunflower was about 0.12 mol/L.
