盐胁迫下荞麦体内Na^+分配与品种耐盐性的关系  

Correlation between Sodium Ion Distribution in Buckwheat and Salt Tolerance of Varieties under Salt Stress

作　　者：马德源[1] 李发良 朱剑锋 战伟龑[1] 杨洪兵[1] 

机构地区：[1]青岛农业大学生命科学学院,山东青岛266109 [2]四川省凉山州农业科学研究所高山作物研究站,四川凉山616150

出　　处：《安徽农业科学》2009年第13期5908-5909,共2页Journal of Anhui Agricultural Sciences

基　　金：青岛农业大学高层次人才启动基金(630423)资助

摘　　要：[目的]研究两个耐盐性不同的荞麦品种体内Na+分配与其耐盐性的关系。[方法]测定两个荞麦品种TQ-0808(盐敏感)和川荞1号(耐盐)幼苗根部、茎基部和叶片Na+含量。[结果]盐胁迫下,耐盐荞麦品种体内Na+主要在根部和茎基部累积,盐敏感荞麦品种体内Na+主要积累在根部。[结论]耐盐荞麦品种的限Na+能力大于盐敏感荞麦品种,耐盐荞麦品种叶片Na+含量较低,更耐盐。[Objective] This research aimed to discuss the correlation between Na＋ distribution in two buckwheat varieties with different salt tolerance. [ Method] Na ＋ content in the seedling root, stem base and leaf of two buckwheat varieties including TQ-0808（salt-sensitive）and Chuanqiao No. 1 （salt-tolerant）were determined . [ Result]Salt-tolerant buckwheat variety accumulated more Na ＋ in the mot and stern base, while salt-sensitive one accumulated more Na ＋ in the mot. [ Conclusion] Na ＋ restriction capability of salt-tolerant buckwheat variety was higher than salt-seusitive one, which made salt-tolerant buckwheat variety has less Na^＋ content of leaf and more salt tolerance.

关 键 词：荞麦 盐胁迫 Na+分配 限Na+能力 耐盐性 

分 类 号：Q945.12[生物学—植物学] Q945.78