河南农业科学Issue(9)：124-128,5.
盐胁迫对3种白刺种子萌发的影响及其耐盐性比较
Effects of Salt Stress on Germination of Three Species of Nitraria and Their Salt Tolerance Analysis
摘要
Abstract
In order to understand salt tolerance of different species of Nitraria,the germination and growth of Nitraria were researched under salt stress with different concentrations of NaCl. The results showed that absolute germination rate of Nitraria tangutorum Bobr was higher than that of Nitraria sibirica Pall and Nitraria roborowskii Kom,the absolute germination rates of Nitraria tangutorum Bobr and Nitrariaroborowskii Kom were the highest under salt stress with 10 g/L NaCl,and that of Nitraria sibirica Pall was the highest under salt stress with 5 g/L NaCl.Relative germination rate of Nitraria tangutorum Bobr was the highest,and that of Nitraria sibirica Pall was the lowest.The seed vigor index of Nitrariatangutorum Bobr was the highest,and that of Nitraria roborowskii Kom was the lowest;seed vigor index of Nitraria sibirica Pall reduced quickly under salt stress with 5 to 1 5 g/L NaCl,thus that of Nitraria tangutorum Bobr decreased quickly under salt stress with 10 to 20 g/L NaCl,that of Nitraria roborowskii Kom was the lowest under salt stress with all concentrations of NaCl.The salt stress with higher concentrations of NaCl delayed seed germination more.Comprehensive analysis result according to membership function showed that the salt tolerance order of three species of Nitraria in germination period was Nitraria tangutorum Bobr>Nitraria sibirica Pall>Nitraria roborowskii Kom. The maximum tolerance concentrations of NaCl for Nitrariatangutorum Bobr and Nitrariasibirica Pall were 2.7 1%,2.6 6%,and that for Nitraria roborowskii Kom was 2.5 4%.关键词
白刺/盐胁迫/发芽率/耐盐性/发芽指数/活力指数Key words
Nitraria/salt stress/germination rates/salt tolerance/germination index/vigor index分类
农业科技引用本文复制引用
史滟滪,杨静慧,左凤月,徐慧洁,刘婷,龚无缺..盐胁迫对3种白刺种子萌发的影响及其耐盐性比较[J].河南农业科学,2014,(9):124-128,5.基金项目
国家农业科技成果转化资金项目（2012GB2A100015）；国家星火计划项目（2013GA610008）；天津市科委重大科技专项（12ZCDZNC04800）；天津农学院科学研究发展基金项目 （）
