高燕麦草苗期耐盐性鉴定及综合评价  

Salt-Tolerance Appraisal and Comprehensive Evaluation of Wild Arrhenatherum elatius L.Seedling

作　　者：阳曦[1] 张新全[1] 王运琦[2] 王赞[3] 张耿[3] 高洪文[3] 于遵波[4] 

机构地区：[1]四川农业大学动物科技学院草业科学系,四川雅安625014 [2]山西省农业科学院畜牧兽医研究所,山西太原030032 [3]中国农业科学院畜牧研究所,北京100094 [4]中国兽医药品监察所,北京100081

出　　处：《安徽农业科学》2006年第23期6105-6108,共4页Journal of Anhui Agricultural Sciences

基　　金：国际科技合作计划重点项目(2003DFBA0001)资助

摘　　要：在浓度分别为0．35％、0．45％、0．55％、0．65％、0．85％的NaCl胁迫下，对23份自俄罗斯引进的野生高燕麦草（Arrhenatherum elatius L．）种质材料进行了苗期耐盐性鉴定，测定在盐胁迫下存活率、株高、分蘖数、植株干重、质膜相对透性的变化，并对材料耐盐性强弱进行综合评价。结果表明：高燕麦草在浓度0．35％～0．65％的NaCl胁迫下表现出较好的耐盐性，属于中等耐盐牧草；各供试材料间耐盐性差异较大，材料ZXY-367综合评价值为0．9211。耐盐性最强；材料ZXY-45、ZXY-443综合评价值分别为0．5934、0．5629。耐盐性最差。The survival rate, plant height, tiller number, dry weight and electric conductivity were tested to determine the effects of NaCl stress at 0.35%, 0.45%, 0.55%, 0.65% and 0.85% on wild Arrhenatherum elatius L. ,seedling which were from Russia, respectively. The results showed that Arthenatherum elatius L. was middle salt-tolerance forage that can resist the NaCl stress at 0.35% - 0.65% and different test pieces beared different degrees of salt concentration. By contrast with the change, ZXY-367 had the strongest salt-tolerance in test pieces, ZXY-45 and ZXY-443 were the poor.

关 键 词：高燕麦草 耐盐性 NACL胁迫 综合评价 

分 类 号：Q946[生物学—植物学]