十一个苜蓿品种种子萌发期的耐盐性研究  

Study on Salt Tolerance of Germination Period of 11 Kinds of Alfalfa Varieties

作　　者：秦楚[1] 张喜斌[1] 倪星[2] 平玲[2] 麻冬梅[2] 

机构地区：[1]宁夏大学生命科学学院,宁夏银川750021 [2]宁夏大学农学院,宁夏银川750021

出　　处：《北方园艺》2016年第13期69-74,共6页Northern Horticulture

基　　金：宁夏回族自治区农业育种专项资助项目(2014NYYZ040102)

摘　　要：以11个国内外苜蓿品种为试验材料,通过采用不同浓度NaCl处理,探讨了在盐胁迫下种子的发芽势、发芽率和叶绿素含量等指标的变化。结果表明:随着盐浓度的升高,发芽势、发芽率、根长、株高、鲜样质量和叶绿素含量均呈下降趋势。11个品种的苜蓿种子对盐胁迫的响应程度有差异。对6个耐盐品种发芽性状进行聚类分析综合评价,"皇后2000"耐盐性最强,耐盐性最弱的是"杰克林"。Taking 11 alfalfa varieties as experimental materials from home and abroad,in order to select the better salt resistance of alfalfa,the effect of different concentration of NaCl on the main seed germination traits including germination force,germination rate,plant height,root length,fresh weight and the content of chlorophyll were studied for 11 alfalfa varieties.The results showed that with the increase of NaCl concentration,the seed germination potential and seed germination force and seed germination rate both decreased gradually,the plant height and root length reduced significantly,and fresh weight and the content of chlorophyll both reduced greatly.The influence of high concentration of NaCl was more noticeable.Different alfalfa varieties had different reponse to NaCl stress.The comprehensive analysis of6 seed germination traits was carried for 11 alfalfa varieties,and the result showed that the strongest salt tolerance was‘Empress 2000＇,while the weakest salt tolerance was‘Jacklin＇.

关 键 词：苜蓿品种 发芽性状 盐胁迫 

分 类 号：S551.7[农业科学—作物学]