| 华南地区三点金种质资源调查及形态学变异研究 |
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| 引用本文： | 岳茂峰,辛国荣,冯莉. 华南地区三点金种质资源调查及形态学变异研究[J]. 草地学报, 2010, 18(2): 263-267. DOI: 10.3969/j.issn.1007-0435.2010.02.023 |
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| 作者姓名： | 岳茂峰 辛国荣 冯莉 |
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| 作者单位： | 1. 中山大学有害生物控制与资源利用国家重点实验室, 中山大学生命科学学院, 广东, 广州, 510275;2. 广东省农科院植保所杂草研究室, 广东, 广州, 510640 |
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| 基金项目： | 广东省自然科学基金项目(9251027501000010)资助 |
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| 摘 要： | 调查三点金(Desmodium triflorum(L.) DC.)野生居群在华南地区的分布,并研究其分布区气候及土壤、生境类型、群落组成及其形态学变异。结果表明:三点金分布在低海拔、靠近沿海的热带亚热带地区酸性土壤中,对养分要求不严,其主要生境是路边草地、人工草坪和河边草地等。伴生群落可分为两类:在南部地区,主要以地毯草(Axonopus compressus(Swartz) Beauv.)和狗牙根(Cynodon dactylon(L.) Pars.)为主;而在北部地区则以草坪类的台湾草(Zoysia tenuifolia Willd. ex Trin.)为主。12个野生居群的三点金植株形态差异较小,但各测量指标在12居群中均有显著差异。其中植株高度和叶柄的长度变异系数最大,分别为14.35%和15.49%。对三点金居群进行聚类分析发现,12个三点金居群可以分为东部、中部,西部三组,其形态在经度上有区域性特点。
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| 关 键 词： | 三点金 分布 生境 形态学变异 |
| 收稿时间： | 2009-06-02 |
Study on Distribution and Morphological variation of Desmodium triflorum (L.) DC. Germplasms Collected from South China |
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| YUE Mao-feng,XIN Guo-rong,FENG Li. Study on Distribution and Morphological variation of Desmodium triflorum (L.) DC. Germplasms Collected from South China[J]. Acta Agrestia Sinica, 2010, 18(2): 263-267. DOI: 10.3969/j.issn.1007-0435.2010.02.023 |
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| Authors: | YUE Mao-feng XIN Guo-rong FENG Li |
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| Affiliation: | 1. State Key Laboratory for Biological Control and School of Life Sciences, Sun Yat-sen University, Guangzhou, Guangdong Province 510275, China;2. Weed Laboratory, Plant Protection Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, Guangdong Province 510640, China |
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| Abstract: | Desmodium triflorum(L.) DC.was a kind of fine ground cover plant and its physiological ecology has been widely studied,but the approach of its distribution and morphological variation was still not available.The aim of this study was to investigate the distribution and morphological variation of D.triflorum germplasms in South China.Morphological and biological attributes of 12 D.triflorum populations were studied in both tropical and subtropical regions across South China.The results show D.triflorum was m... |
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| Keywords: | Desmodium triflorum (L.) DC. Distribution Habitat Morphological variation |
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