猫尾草属牧草苗期耐盐性评价  

Evaluation of salt-tolerance of Phleum pratense in seedling stage

作　　者：孙桂枝[1] 张耿[1] 王赞[1] 王运琦[2] 高洪文[1] 

机构地区：[1]中国农业科学院北京畜牧兽医研究所,北京100094 [2]山西省农业科学院畜牧兽医研究所,山西太原030032

出　　处：《草原与草坪》2007年第5期15-18,共4页Grassland and Turf

基　　金：农业部牧草种质资源保护项目资助

摘　　要：对16份引自俄罗斯的野生猫尾草属（Phleum pratense）材料,在0.3%,0.4%和0.5%NaCl胁迫下,通过株高、存活率、叶片伤害率的测定,采用隶属函数法和标准差系数赋予权重法进行耐盐性综合评价。结果表明：供试16份猫尾草属牧草在0.3%,0.4%和0.5%NaCl胁迫下存活率分别为30%-83%,13%-67%和7%-57%。根据耐盐性综合评价值（D）得出猫尾草耐盐性顺序,ZXY03P-465〉ZXY03P-168〉ZXY03P-149〉ZXY03P-389〉ZXY03P-117〉ZXY03P-81〉ZXY03P-240〉ZXY03P-370〉ZXY03P-290〉ZXY03P-64〉ZXY03P-17〉ZXY03P-340〉ZXY03P-135〉ZXY03P-186〉ZXY03P-419〉ZXY03P-33。Three indexes were used to evaluate the salt tolerance of 16 Phleum pratense accessions under salt stress in seeding stage. Comprehensive evaluation was conducted by subordina showed that the survival rates were varied from 30% to 83.3%,13.3% to 66.7% an 0.3%, 0.4% and 0.5% of NaCl stress respectively. The order of relative salt toleranc accessions was ZXY03P-465 〉 ZXY03P-168 〉 ZXY03P-149 〉 ZXY03P-389 〉 ZXY0 ZXY03P-240 〉 ZXY03P-370 〉 ZXY03P-290 〉 ZXY03P-64 〉 ZXY03P-17 〉 ZXY03 ZXYO3P-186〉 ZXYO3P-419 〉 ZXYO3 P-33.

关 键 词：猫尾草 苗期 耐盐性 评价 

分 类 号：S543.034[农业科学—作物学]