| 不同紫花苜蓿品种的TWINSPAN分类与筛选 |
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| 引用本文： | 马春,孙启忠,周延林,李洪远,张晓春.不同紫花苜蓿品种的TWINSPAN分类与筛选[J].四川草原,2007(1). |
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| 作者姓名： | 马春 孙启忠 周延林 李洪远 张晓春 |
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| 作者单位： | 南开大学环境科学与工程学院 天津300071(马春，李洪远)，中国农业科学院草原研究所 内蒙古呼和浩特010010(孙启忠)，内蒙古大学生命科学学院 内蒙古呼和浩特010021(周延林)，南开大学生命科学学院 天津300071(张晓春) |
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| 基金项目： | 国家“十五”科技攻关项目(2004BA528B-1-2) |
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| 摘 要： | 应用“康乃尔生态学”程序(Cornell ecological program,CEP)中的二歧指示种分析TWINSPAN(Two-WayIndicators Species Analysis)数量分析方法,以不同紫花苜蓿品种的生理生态特性值和牧草产量值为指标对16个紫花苜蓿品种进行分类。结果表明:用TWINSPAN可将16个品种划分为7类,并且根据试验站所在地区的干旱半干旱的气候特征,筛选出高产、高水分利用效率、高光能利用效率的3个优良品种,分别为肇东苜蓿、德宝苜蓿和草原2号苜蓿。
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| 关 键 词： | 紫花苜蓿 TWINSPAN分类 生理生态特性 品种筛选 |
TWINSPAN Classification and Selection of Alfalfa Cultivars |
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| MA Chun,SUN Qi-zhong,ZHOU Yan-lin,LI Hong-yuan,ZHANG Xiao-chun.TWINSPAN Classification and Selection of Alfalfa Cultivars[J].Journal of Sichuan Grassland,2007(1). |
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| Authors: | MA Chun SUN Qi-zhong ZHOU Yan-lin LI Hong-yuan ZHANG Xiao-chun |
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| Institution: | MA Chun1,SUN Qi-zhong2,ZHOU Yan-lin3,LI Hong-yuan1,ZHANG Xiao-chun4 |
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| Abstract: | Took the ecophysiological characteristics and graze yield as index to classfy 16 varieties of Alfalfa by Twinspan(Two-way Indicators species Analysis)in cornell ecological program(CEP).The results show that sixteen varieties of Alfalfa could been classified into seven categories by TWINSPAN.Moreover,according to the arid and semiarid climate characteristics of the studied area,three varieties of excellent Alfalfa were selected with high output,high water utilization efficiency(WUE)and high light utilization efficiency(LUE).Those were Zhao dong,Derby,Caoyuan No.2. |
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| Keywords: | Alfalfa TWINSPAN(Two-Way Indicators Species Analysis) Ecophysiological characteristics Selection of cultivars |
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