羊茅黑麦草、高羊茅及一年生黑麦草苗期抗旱生理初探  

Physiological characters of drought resistance of rybrid festuloium,tall fescue and annual ryegrass at seedling stage

作　　者：辛金霞[1] 戎郁萍[2] 刘荣堂[1] 

机构地区：[1]甘肃农业大学草业学院/草业生态系统教育部重点实验室/中-美草地畜牧业可持续发展研究中心,甘肃兰州730070 [2]中国农业大学动物科技学院草地研究所,北京100193

出　　处：《草原与草坪》2011年第1期79-83,共5页Grassland and Turf

基　　金：国家牧草产业体系及国家科技支撑项目"牧草远缘杂交育种技术研究(20008BAD3B02)"资助

摘　　要：以羊茅黑麦草TF型(羊茅型)品种Hykor、羊茅黑麦草意大利黑麦草型品种Perny、一年生黑麦草(2倍体)品种Surrey、一年生黑麦草(4倍体)品种Angus、高羊茅牧草型品种Fawn为试验材料,采用单因素设计,通过盆栽自然干旱胁迫,研究各牧草的叶片叶绿素、可溶性糖、电导率和土壤含水量的动态变化。结果表明,5种植物种子的抗性强弱依次为:Hykor、Perny、Fawn、Angus、Surrey。Physiological characters of drought resistance of Festuca ovina×Lolium multiflorum）（festucoid type） Hykor,Festuca ovina×Lolium multiflorum（Italian ryegrass type）Perny,Festuca arundinacea fawn,L multiflorum Surrey and L multiflorum Angus were determinated at Seedling stage under irrigation and drought stress condition in pot experiment.And a comprehensive evaluation on physiological indexes of five plants was provided.The results showed that the drought-resistant ability of five species were,from strong to weak,as follow： festuloium（festucoid type）Hykor,festuloium（Italian ryegrass type）Perny,tall fescue fawn,annual ryegrass Angus and annual ryegrass Surrey.

关 键 词：抗旱性 苗期 干旱胁迫 黑麦草 

分 类 号：S544.9[农业科学—作物学]