草业学报2016，Vol.25Issue(9)：104-116,13.DOI:10.11686/cyxb2015513
鸭茅 DUS 测试不同品种性状一致性分析
Uniformity analysis of DUS traits of different orchardgrass (Dactylis glomerata) varieties
摘要
Abstract
Orchardgrass (Dactylis glomerata )is a globally important perennial forage grass.The objectives of this study were to optimize the guidelines and formulate the standards for distinctness,uniformity and stability (DUS)tests of orchardgrass to fit Chinese conditions.Thirty DUS characters from 9 varieties were utilized for DUS testing over two consecutive years.The results indicated that quality characteristics were consistent over both years apart from spindle base branch number.The expression of 7 pseudo-qualitative characteristics was also consistent.There were significant differences (P <0.01 )among quantity characteristics especially plant height,second leaf ligule width and green yield.The qualitative characteristics were affected by environment;the mean coefficient of variation for qualitative characteristics ranged from 26.3% (‘Grasslands Wana’,2013) to 48.2% (‘01472’,2014).The uniformity of quality characteristics and pseudo-qualitative characteristics is higher than the uniformity of quantity characteristics.In general,‘Baoxing’,‘Gulin’and ‘Cambria’could be used as example varieties because of their lower coefficient of variation and more stable qualitative characteris-tics.关键词
鸭茅/DUS 测试/一致性Key words
orchargrass/DUS testing/uniformity引用本文复制引用
王新宇,蒋林峰,张新全,黄琳凯,李宁,王鹏喜..鸭茅 DUS 测试不同品种性状一致性分析[J].草业学报,2016,25(9):104-116,13.基金项目
国家自然科学基金（31372363）和国家现代牧草产业技术体系（CARS-35-05）资助。 （）
