猫尾草属牧草苗期耐盐性评价

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.