| 假俭草种群变异与生态特性的研究 |
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| 引用本文： | 白史且,苟文龙,张新全,张新跃,高荣,刘世贵.假俭草种群变异与生态特性的研究[J].北京林业大学学报,2002,24(4):97-101. |
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| 作者姓名： | 白史且 苟文龙 张新全 张新跃 高荣 刘世贵 |
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| 作者单位： | 1. 四川大学草原生防国家专业实验室;2. 四川农业大学草业工程重点实验室;3. 四川草原工作总站 |
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| 基金项目： | 农业部重点科研项目;2001-02; |
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| 摘 要： | 通过大量的野外调查和田间测定,对假俭草(Eremochloa ophiuroides (Munro) Hack.)野生种群生态分布的区域、特点、生境类型、群落组成及形态学变异进行了研究.结果表明:①该研究的调查范围中,假俭草分布在60～700 m海拔,土壤pH范围在4.34～8.28之间,生境可以分为:河滩草地型、疏林草地型、丘陵山地型3种类型;②假俭草的群落结构中主要的优势植物种有马尾松、狗牙根、牛鞭草和结缕草等;③假俭草不同种群的外部形态性状发生了较大的变异,说明假俭草种质资源有较丰富的遗传多样性;④用SPSS10.0软件对形态学测定结果进行聚类分析,将15个种群分为5大类,聚类结果与材料的地理分布基本一致,种群3号(重庆黔江种群)、11号(重庆南山种群)可望作为优良的草坪草选种育种材料.
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| 关 键 词： | 野生假俭草 生态特性 种群变异 |
Ecological characteristics and morphological variations of centipedegrass in different populations |
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| Bai Shiqie, Gou Wenlong, Zhang Xinquan, Zhang Xinyue, Gao Rong, Liu Shigui. Lab. of Bio control of Grassland,Sichuan University,Chengdu ,P. R. China..Ecological characteristics and morphological variations of centipedegrass in different populations[J].Journal of Beijing Forestry University,2002,24(4):97-101. |
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| Authors: | Bai Shiqie Gou Wenlong Zhang Xinquan Zhang Xinyue Gao Rong Liu Shigui Lab of Bio control of Grassland Sichuan University Chengdu P R China |
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| Institution: | Bai Shiqie, Gou Wenlong, Zhang Xinquan, Zhang Xinyue, Gao Rong, Liu Shigui. Lab. of Bio control of Grassland,Sichuan University,Chengdu 610064,P. R. China. |
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| Abstract: | The ecological distribution areas, features, ecological environment types, community constituents and external morphological diversity of native centipedegrass ( Eremochloa ophiuroides (Munro) Hack.) are studied. The results show that: ① The centipedegrass investigated and studied is distributed from the altitude of 60 m to 700 m. The pH of soil is from 4 34 to 8 28, the ecological environment types of centipedegrass can be classified into three types, namely, flood bed grassland type, open forest grassland type and hill grassland type. ② The main plant species in the community of centipedegrass are masson pine, bermudagrass, Hemarthria and Zoyiagrass. ③ There is a big variation in the external morphology of centipedegrass, which explains genetic diversity in germplasm resources of native centipedegrass. ④ The native centipedegrass populations, based on the external morphological index, are clustered by SPSS software and classified into 5 groups, and clustering results are identical with the geographical distribution of centipedegrass. The No.3 (Chongqing Qianjiang) and the population No.4 (Chongqing Nanshan) are good breeding materials for turfgrass. |
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| Keywords: | native centipedegrass ecological characteristics morphological variation |
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