| 3种苜蓿形态特征及变异分析 |
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| 引用本文： | 于林清,汪慧,张旭婧,贾志斌,张利军.3种苜蓿形态特征及变异分析[J].草原与草坪,2008(3):29-33. |
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| 作者姓名： | 于林清 汪慧 张旭婧 贾志斌 张利军 |
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| 作者单位： | 1. 中国农业科学院,草原研究所,内蒙古,呼和浩特,010010
2. 内蒙古大学生命科学学院,内蒙古,呼和浩特,010021 |
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| 基金项目： | 国家自然科学基金
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中央级公益性科研院所基本科研业务费专项资金(中国农业科学院草原研究所)资助项目 |
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| 摘 要： | 以紫花苜蓿（Medicago sativa），黄花苜蓿（M．falcata）和杂花苜蓿（M．varia）为试验材料，从形态学水平对苜蓿的遗传变异以及亲缘关系进行分析发现，不同品种的变异十分丰富，叶面积和叶宽具有较高的变异水平。相关性分析表明，除节间数和节间长度两个指标与叶形态指标没表现出相关性外，其他指标大多数都表现出显著的相关性；主成分分析表明，形态学性状的主要变异来源于叶宽、主茎长、节间数、节间长、叶型指数。不同类型苜蓿的总变异依次为：紫花苜蓿〉黄花苜蓿〉杂花苜蓿。
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| 关 键 词： | 苜蓿 形态学性状 变异 |
Morphological characteristics and variation of three species of Medicago |
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| YU Lin-qing,WANG Hui,ZHANG Xu-jing,JIA Zhi-bin,ZHANG Li-jun.Morphological characteristics and variation of three species of Medicago[J].Grassland and Turf,2008(3):29-33. |
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| Authors: | YU Lin-qing WANG Hui ZHANG Xu-jing JIA Zhi-bin ZHANG Li-jun |
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| Institution: | YU Lin-qing ,WANG Hui ,ZHANG Xu-jing ,JIA Zhi-bin ,ZHANG Li-jun (1. Grassland Research Institute of Chinese Academy of Agricultural Sciences, Huhhot 010010, China; 2. College of Life Science, Inner Mongolia University, Huhhot 010019,China) |
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| Abstract: | Morphological characteristics of 3 species of Medicago(Medicago sativa,M.falcata and M.varia) were studied and the various morphologic variance were found among the 3 species.The most significant differences were found in the leaf area and leaf width.Correlation analysis indicated that all parameters related morphological features were correlated each other except node number and average internode length.Principal component analysis indicated that the main morphological variance among 3 specie were from the stem length,node number,average internode length and leaf width. |
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| Keywords: | alfalfa morphological trait variance |
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