2024年5月22日 星期三
华东地区狗牙根形态分类及其坪用价值
Taxonomy of Cynodon dactylon types in East China and their turfgrass quality
1996年 第5卷 第3期 页码[18-22]    下载全文[0.6MB]  
摘要

根据狗牙根 (Cynodon dactylon ( L. ) Pers. ) 19个外部性状对华东地区 34个点上的 88份狗牙根材料进行 Q聚类分析结果表明 ,华东地区狗牙根可分为 5个类型 ,即矮细型矮粗型斜细斜粗型和直立型主成分分析结果表明 ,营养器官是狗牙根形态分类的重要指标不同类型狗牙根坪用价值的排序为: 矮细型> 矮粗型> 斜细型> 斜粗型> 直立型
 

Abstract

Q clustering analysis was carried on 88 accessions from 34 sites of East China based on 19 morphological characters. The result show  that five types of C. dactylon can be distinguish ed, i. e. dw arf-fine type, dwarf-thick type, slanting-fine type, slanting-thick type and erect type. The result fo Principal Component Analysis ( PCA) shows that the vegetative characters are the major characters in morphological classification of C. dactylon. Turfgrass quality of five types of C. dacty lon is ranked as followings: dw arf-fine type>dwarf-thick type> slanting-fine type> slanting-thick type> erect type.
 

关键词狗牙根; 形态分类; 坪用价值
Key wordsCynodon dacty lon; morphological classification; turfgrass quality
作者刘建秀, 贺善安 ,刘永东 ,陈守良
所在单位南京农业大学农学系 ,南京 210095
江 苏 省中国科学院植物研究所 ,南京 210014
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