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水分胁迫下蒙古冰草、扁穗冰草和滨麦抗旱性研究
Studies on drought resistance of Agropyron mongolioum keng、Agropyron cristatum(L.) Gaertn and Leymus mollis
【摘要】 以蒙古冰草(Agropyron mongolioum keng)、扁穗冰草(Agropyron cristatum(L.)Gaertn)和滨麦(Leymus mollis)为材料,用聚乙二醇6 000(PEG 6 000)模拟土壤水分胁迫,对它们的叶片相对含水量、质膜相对透性、游离脯氨酸及叶绿素指标进行对比,利用隶属函数法进行综合评价,其抗旱排序为滨麦>蒙古冰草>扁穗冰草.
【Abstract】 Studied the relative water contents in leaves,membrane permeability,proline content and chlorophyl content in seedings of Agropyron mongolioum keng,Agropyron cristatum(L.) Gaertn and Leymus mollis under PEG 6 000 water stress.The results of subordination function method of drought resistance for the three kinds of plant in water stress showed their resistance ability as following: Leymus mollis> Agropyron mongolioum keng>Agropyron cristatum(L.) Gaertn,their resistance ability as following: Leymus mollis> Agropyron mongolioum keng>Agropyron cristatum(L.) Gaertn.
【Key words】 water stress; drought resistance; subordination function method;
- 【文献出处】 延边大学农学学报 ,Journal of Agricultural Science Yanbian University , 编辑部邮箱 ,2008年02期
- 【分类号】S54
- 【被引频次】18
- 【下载频次】350