摘要
连续4年对中国28个已通过审定的紫花苜蓿品种的产量及质量性状进行了研究。生育期测定结果表明:达初花期所需天数最少的品种有甘农3号、武功、蔚县、新牧1号、新牧2号、公农2号、甘农1号、准格尔、陇东、无棣和晋南。产量性状分析表明:总干物质产量最高和较高的品种为新疆大叶(35955.6kg/hm2)、武功、甘农3号、公农2号、新牧2号、新牧1号、肇东、图牧2号、草原2号、龙牧801和龙牧803共11个品种(31088.3～33183.4kg/hm2);叶茎比最高的品种为龙牧801和无棣。依据对4年总干物质产量、3龄总干物质产量、4年平均日增高、4龄叶面积、4龄总枝条数和叶茎比6个产量性状测定值的不加权平均进行生产性能的聚类分析,认为可将28个品种分为极强、较强、中等、较差和差5个类群。极强类群苜蓿生产能力最强,特征为生长迅速,干物质产量、日增高、枝条数均为最高,叶面积最高或较低;叶茎比为中等;达出花期所需天数为少或多。
Yields and quality characteristics of 28 varieties of alfalfa were evaluated from 1999 to 2002 at Lanzhou ,China. The results showed that the earliest varieties were Gannong No.3, Wugong,Weixian, Xinmu No1, Xinmu No.2,Gannong No.1, Zhungeer, Longdong, Wudi and Jinnan on days to early flowering. The results in yield characteristics showed that the highest and higher varieties in dry matter(DM) were Xinjiangdaye(35 955.6 kg/hm^2)and Wugong, Gannong No.3,Gongnong No.2,Xinmu No.2,Xinmu No.1,Zhaodong,Tumu No.2,Caoyuan No.2,Longmu 801,Longmu 803 (31088.3～33 183.4 kg/hm^2), The result in quality characteristics showed the biggest varieties in leaf/stem were Longmu 803 and Wudi. Dry matter in third year ,mean daily increased height in 4 years, breach number and leaf area in fourth year, mean leaf/stem and total dry matter in 4 years were employed to carry out a cluster analysis. The results showed that the 28 varieties could be divided into 5 groups. The highest total dry matter, mean daily increased height, breach number ;the highest or lower leaf area ;middle leaf/stem in best group.
出处
《西北植物学报》
CAS
CSCD
2004年第10期1837-1844,共8页
Acta Botanica Boreali-Occidentalia Sinica
基金
国家重点基础研究发展规划项目(G2000018602)
中澳合作项目(ASI/1998026)
关键词
紫花苜蓿
生育期
产量性状
聚类分析
Medicago sativa
bearing stage
yield characteristics
leaf/stem
cluster analysis
