Effect of NaCl Stress on Seedling Growth of Sunflower

• 作者: Wei Shuzhen Zan Yaling
• 来源期刊: Plant Diseases and Pests(植物病虫害研究：英文版)
• 学科: 农学
• 关键词: 幼苗生长 向日葵 过氧化物酶活性 盐胁迫 氯化钠浓度 脯氨酸含量 生理活性 丙二醛含量
• 年，卷（期）: 2016,（1）
• 页码范围: 32-35
• 页数: 4页
• 分类号: S512.1

摘要

[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 567 DW sunflower as the material,effects of different concentrations of NaCl (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.