干旱地区农业研究2011，Vol.29Issue(4)：29-35,7.
不同食葵品种萌发期耐盐性研究
Salt tolerance of Helianthus varieties at germination stage
摘要
Abstract
The effect of NaCl on Helianthus seed germination after treated with different NaCl concentrations (O、 0 .10% ,0 .20% ,0 .30% ,0 .40% ,0 .50% ,0 .60% ) were studied with Helianthus cultivars SH909 ,RH3146 ,RH318 , DC6009 ,RH118 and 135 . With different NaCl concentrations ,the germination percentage ,the relative germination percentage ,seed potentiality ,germination index ,the relative root length were calculated .Changes in some physiological index- es derived from the embryos of Helianthus were measured under salt stresses . The salt tolerance characteristic and membership function were comprehensively evaluated with all above traits .The results showed that salt tolerance characteristic of different Helianthus cultivars were differential . The salt tolerance order of six varieties of Helianthus was :RH118> RH3146>RH318>135>SH909>DC6009 .RH118 was the most salt tolerant variety and the limit germination ratio was 0 .47% , showed strong germination ability and embryos grow ability . Second is RH3146 , the limit germination ratio was 0 .41% , showed more strong embryos grow ability . The effect of low concentration of NaCl treatment (NaCl≤SO .10% ) on Helianthus seed germination was relatively small . Under higher concentrations of salt (NaCl≥O .20% ), the overall trend was that the germination percentage ,seed potentiality, germination index and root growth of different Helianthus seeds decreased with increasing salt content .The physiological reaction of different varieties was different under salt stress .关键词
耐盐性/盐胁迫/萌发期/食葵/水培实验Key words
salt tolerance/salt stress/germination stage/Helianthus/hydroponics分类
农业科技引用本文复制引用
王婧,赵永敢,逢焕成,任天志,李玉义..不同食葵品种萌发期耐盐性研究[J].干旱地区农业研究,2011,29(4):29-35,7.基金项目
公益性行业(农业)科研专项(2009113001-02)" 黄河上中游次生盐碱地农业高效利用技术模式研究与示范"课题 （农业）
