扁蓿豆不同品系种子发芽期耐盐性鉴定  

Evaluation the Salt Tolerance of Melilotoides ruthenica Strains in the Germination Period

作　　者：史万光[1] 王照兰[2] 杜建材[2] 胡卉芳[2] 杨勇[3] 

机构地区：[1]甘肃农业大学草业学院,甘肃兰州730070 [2]中国农业科学院草原研究所,内蒙古呼和浩特010010 [3]内蒙古农业大学生态环境学院,内蒙古呼和浩特010019

出　　处：《中国草地学报》2008年第1期40-44,共5页Chinese Journal of Grassland

基　　金：中央级公益性科研院所基本科研业务费专项资金(中国农业科学院草原研究所)资助项目;国家重点基础研究发展计划项目(2007CB106800);中国农业科学院院长基金项目“应用AFLP技术对苜蓿杂交后代选择的研究”

摘　　要：在盐分胁迫下,以黄花苜蓿为对照,探讨扁蓿豆4个品系种子发芽期耐盐性差异。依据种子发芽率、相对发芽率、发芽势、活力指数和半致死浓度来看,扁蓿豆种质材料在种子发芽期的抗盐性高于黄花苜蓿,扁蓿豆4个品系的耐盐性强弱顺序为:品系90-36>93-21>00-61>00-81;其半致死浓度分别为:2.16%、1.1%、0.96%、0.86%。Under salt stress, using Medicago falcata as a CK. The salt resistances of four Melilotoides ruthenica strains were evaluated based on germination rate, relative germination rate, germination power, vigor index and half-lethal density. It was found that salt resistance of Melilotoides ruthenica was higher than that of Medicago falcata. The ability of salt resistances of the four strains was： 90-36〉93-21〉00-61 〉00-81. Their half-lethal density were 2.0%, 1.1%, 0.92%, 0.84% respectively.

关 键 词：扁蓿豆 品系 种子发芽期 耐盐性 

分 类 号：S541[农业科学—作物学]