| 不同生境狗牙根无性系构件的生态特征 |
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| 引用本文： | 费永俊,甘彩霞,刘志雄.不同生境狗牙根无性系构件的生态特征[J].草业科学,2006,23(10):80-83. |
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| 作者姓名： | 费永俊 甘彩霞 刘志雄 |
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| 作者单位： | 长江大学园艺园林学院,湖北,荆州,434025;长江大学园艺园林学院,湖北,荆州,434025;长江大学园艺园林学院,湖北,荆州,434025 |
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| 基金项目： | 湖北省科技厅科技攻关项目，湖北省教育厅资助项目，湖北省重点实验室基金，湖北省教育厅中青年人才基金 |
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| 摘 要： | 取4种不同生境下的狗牙根Cynodon dactylon无性系,将狗牙根根茎划分为3个年龄级,测定各年龄级根茎的数量、鲜质量、茎段长度、茎段粗度及其他相应指标,并进行比较研究。结果表明:光照充足、受人为践踏较多的干旱生境,狗牙根构件的测定指标除二年生、三年生根茎数外,其他测定指标都是4种生境中最低的;水源充足的湿生生境,狗牙根构件的测定指标除二年生根茎茎段数和茎段长外,其他指标都是最高的;土质较差、荫蔽条件下的狗牙根,各项指标总体表现排序第二;阳光充足、腐殖质丰富的沙壤生境下的狗牙根,二年生根茎的数量、鲜质量较高。
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| 关 键 词： | 狗牙根 无性系 生境 构件 生态适应性 |
| 文章编号： | 1000-0629（2006）10-0080-04 |
| 收稿时间： | 09 26 2005 12:00AM |
| 修稿时间： | 2005-09-26 |
Ecological characteristics of Cynodon dactylon clone in different habitats |
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| FEI Yong-jun,GAN Cai-xia,LIU Zhi-xiong.Ecological characteristics of Cynodon dactylon clone in different habitats[J].Pratacultural Science,2006,23(10):80-83. |
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| Authors: | FEI Yong-jun GAN Cai-xia LIU Zhi-xiong |
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| Institution: | College of Gardening and Horticulture, Yangtze University, Hubei, Jingzhou 434025, China |
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| Abstract: | Cynodon dactylon clone from four different habitats were selected and grouped into 3 age grades according to their rhizomes.The quantity,fresh weight,stem length and stem diameter were determined and compared.The results showed that in sunny,arid and trampled habitat,all the indexes were the lowest except the two year and three year old rhizome numbers;the humid habitat produced the highest values except two year old rhizome number and length;in poor soil texture and shadowing habitat,the indexes of C.dactylon ranked the second;sunny,sandy soil with abundant humus habitat ranked the first with the highest rhizome number and fresh weight. |
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| Keywords: | Cynodon dactylon clone habitat module ecological adaptability |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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