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《Environmental Science and Management》 2008-04
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Alleviatory Effects of Calcium on the Toxicity of Sodium Salt to Seed Ger Mination and Seeding Growth

Lang Zhihong1,Ren Jun1,2,Tao Ling1(1.School of Environmental and Municipal Engineering of Lanzhou Jiaotong University,Institute of Environmental Ecology,Lanzhou 730070,China;2.College of Life Science,Lanzhou University,Lanzhou 730070,China)  
Seeds of Achnatherum splendens were incubated in salt solutions(NaCl,with or without CaCl2)at 30/25℃ in the day/night.Ger mination percentage was inhibited under different NaCl treatment.Shoot length and root length were inhibited under the salt treatment.The toxic effects of salt on the radicles were alleviated by the addition of low concentrations of CaCl2.And Ca2+ alleviated the toxic effects on the root length,shoot length.These results suggest that Ca2+ added in saline treatment alleviates the toxic effects of other salt components on seed ger mination and plant growth.
【Fund】: 兰州交通大学青蓝人才工程项目;; 国家自然科学基金项目(30470325);; 甘肃省自然科学基金暨中青年科技基金项目(3ZS042-B25-047)
【CateGory Index】: Q945
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