26个草地早熟禾品种苗期抗旱性综合评价  

Comprehensive evaluation of drought resistance for 26cultivars of Kentucky bluegrass at seedling stage

作　　者：李寿田[1,2] 韩建国[2] 毛培胜[2] 

机构地区：[1]苏州农业职业技术学院,江苏苏州215008 [2]中国农业大学草地研究所,北京100097

出　　处：《草业科学》2012年第7期1114-1119,共6页Pratacultural Science

基　　金：江苏省"十一五"科技支撑计划基金(BE2008406)子项目;北京市教育委员会共建科研项目(XK100190552;JD100190531);北京市自然科学基金重点项目(6001001)

摘　　要：研究了苗期自然干旱胁迫对26个草地早熟禾(Poa pratensis)品种生长的影响,并对其抗旱性进行了综合评价。结果表明,经过2周自然干旱处理后,不同品种株高、地上部鲜质量、地上部干质量、地下部干质量下降,根冠比增加。通过权重分配法,对26个品种进行抗旱性综合评价,品种Midnight抗旱性最好,品种Brilliant抗旱性最差。A pot experiment was conducted to comprehensively assess on the drought resistance of 26 culti- vars of Kentucky Bluegrass at the seedling stages by measuring the growth of seedlings. This study showed that plant height, shoot fresh weight, shoot dry weight, root dry weight decreased and ratio of root to shoot increased after two weeks of drought treatment. The comprehensive assessment of drought resistance showed that Midnight performed well and Brilliant was the worst among 26 cultivars.

关 键 词：草地早熟禾 苗期 抗旱性 

分 类 号：S688.4[农业科学—观赏园艺]