草业学报Issue(11)：247-255,9.DOI:10.11686/cyxb2014511
45个苜蓿品种秋眠级初步评定
Preliminary assessment of fall dormancy in 45 alfalfa cultivars
摘要
Abstract
Following the methods of Teuber and using 11 different American fall dormancy standard alfalfa cultivars as contrasts,we assessed the fall dormancy class of 45 alfalfa cultivars from the drought area of western Inner Mongolia in 2013 and 2014.We conducted a regression analysis of the relationship between fall dormancy class and natural plant height after final clipping and compared results with the 11 American cultivars.Results showed that natural plant height at 21 days after autumn clipping and fall dormancy class had a linear relationship with R 2 of 0.9643 and 0.9867 respectively.Analysis showed that the correlation coefficient between actual fall dormancy class and the 11 comparator varieties is 0.994.The correlation coefficient for 13 known fall dormancy introduced varieties is 0.969.Cluster analysis showed that 90% of 21 domestic alfalfa cultivars are either dormant or highly dormant types.The actual fall dormancy classes of Yumu No.1, Gannong No.5 and Liangmu No.1 were 6.8,7.4 and 8.5,indicating that they belong to the non-dormant type.关键词
苜蓿/秋眠性/秋眠级Key words
alfalfa/fall dormancy/fall dormancy class引用本文复制引用
方珊珊,孙启忠,闫亚飞,刘志英,陶雅,李峰..45个苜蓿品种秋眠级初步评定[J].草业学报,2015,(11):247-255,9.基金项目
中国农业科学院科技创新工程牧草栽培与加工利用团队（CAAS-ASTIP-IGR 2015-02）和国家牧草产业技术体系（CARS-35）资助。 （）
