| 臂形草属种质资源的形态特征变异分析 |
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| 引用本文： | 梁晓玲,白昌军,严琳玲,张瑜,唐军,张龙. 臂形草属种质资源的形态特征变异分析[J]. 热带农业科学, 2012, 32(3): 19-26,36 |
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| 作者姓名： | 梁晓玲 白昌军 严琳玲 张瑜 唐军 张龙 |
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| 作者单位： | 1. 海南大学农学院,海南儋州571737／中国热带农业科学院热带作物品种资源研究所／农业部热带作物种质资源利用重点开放实验室,海南儋卅571737
2. 中国热带农业科学院热带作物品种资源研究所／农业部热带作物种质资源利用重点开放实验室,海南儋卅,571737 |
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| 基金项目： | 国家科技支撑计划项目(No.2011BAD17B01-01-5);农业部物种资源保护“热带牧草种质资源保存”项目;农业部热带作物种质资源保护项目(No.12RZZY-09);中央级公益性科研院所基本科研业务费“热带牧草新品种选育及产业化示范”项目(No.PZS083) |
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| 摘 要： | 对45份臂形草种质材料进行20个指标的形态学分析。结果表明:臂形草属材料的形态指标间差异极显著,且主成分分析说明最长茎伸展长度、节间长、叶长、叶宽等植株的数量性状均为第一影响因素,其形态变异明显,遗传表达多样性。聚类分析结果表明:试材料可分为3类,本地材料明显为1类,引进材料分为2类。
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| 关 键 词： | 臂形草 形态变异 相关性分析 主成分分析 聚类分析 |
Morphological Variation of Brachiaria Germplasm Resources |
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| LIANG Xiaoling,BAI Changjun,YAN Linling,ZHANG Yu,TANG Jun,ZHANG Long. Morphological Variation of Brachiaria Germplasm Resources[J]. Chinese Journal of Tropical Agriculture, 2012, 32(3): 19-26,36 |
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| Authors: | LIANG Xiaoling BAI Changjun YAN Linling ZHANG Yu TANG Jun ZHANG Long |
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| Affiliation: | 1,2)(1 College of Agronomy,Hainan University,Danzhou,Hainan 571737; 2 Tropical Crops Genetic Resources Institute/Ministry of Agriculture Key Laboratory of Tropical Crops Germplasm Utilization,CATAS,Danzhou,Hainan 571737) |
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| Abstract: | This essay has an analysis on 20 morphological indexes about 45 individual materials which are from Brachiaria.Correlation analysis shows that the correlations among them are very significant,and the principal component analysis illustrates that the quantitative trait of plants is the first influence factor,the extend length of the longest stem,the internode length,the leaf length,the leaf width,and so on.Apart from this,the morphological variation is obvious and the genetic expression is multifarious.We divide these materials into 3 groups using the hierarchical clustering analysis.The local materials is a class apparently,the other two introduced materials are two categories. |
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| Keywords: | Brachiaria morphological variation correlation analysis principal component analysis clustering analysis |
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