[1]郑轶琦,郭 琰,刘 晶,等.洛阳市狗牙根种质资源表型遗传多样性研究[J].北方园艺,2015,39(01):72-75.[doi:10.11937/bfyy.201501020]
　ZHENG Yi-qi,GUO Yan,LIU Jing,et al.Study on the Phenotypic Diversity of Cynodon dactylon Collected from Luoyang City[J].Northern Horticulture,2015,39(01):72-75.[doi:10.11937/bfyy.201501020]
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洛阳市狗牙根种质资源表型遗传多样性研究

《北方园艺》[ISSN:1001-0009/CN:23-1247/S] 卷: 第39卷 期数: 2015年01 页码: 72-75 栏目: 出版日期: 2015-01-15
Title:
Study on the Phenotypic Diversity of Cynodon dactylon Collected from Luoyang City
作者:
郑轶琦 1; 郭 琰 1; 刘 晶 1; 刘有战 2; 张 磊 2
(1.河南科技大学 林学院，河南 洛阳 471003；2.河南黄河河务局 豫西河务局，河南 洛阳 471099)
Author(s):
ZHENG Yi-qi1;  GUO Yan1; LIU Jing1; LIU You-zhan2; ZHANG Lei 2
(1.College of Forestry,Henan University of Science and Technology,Luoyang,Henan 471003；2.Western Henan River Bureau,Yellow River Henan Bureau,Luoyang,Henan 471099)
关键词:
关键词：狗牙根; 种质资源; 表型性状; 遗传多样性
Keywords:
Keywords: Cynodon dactylon ; germplasm; phenotypic character; genetic diversity
DOI:
10.11937/bfyy.201501020
文献标志码:
A
摘要:
摘 要：利用12个性状对采自河南省洛阳市的28份狗牙根种质资源的遗传变异、性状相关性及主成分进行了分析。结果表明：狗牙根不同种源各性状具有广泛的变异，变异系数最大的是草层高度57.02％；12个性状变异系数由大到小依次为：草层高度>营养枝高度>生殖枝高度>直立茎叶片长度>匍匐茎节间长度>匍匐茎节间直径>花序长度>小穗数>直立茎叶片宽度>穗枝数>小穗宽>小穗长；各性状间不是相互独立的，而是存在着较广泛的联系，相关系数最高的性状为营养枝高度与草层高度（0.9201）；主成分分析将狗牙根12个性状简化为4个主成分，其累积贡献率为82.97%，以高度相关因子的贡献率最高，达到51.84%。
Abstract:
Abstract:The genetic variation,character correlation and principal component were studied on 28 kinds of C.dactylon germplasm collected from Luoyang city based on twelve traits.The results showed that abundant variation existed in these traits.The widest variation was found in turf height that had a coefficient of variance of 57.02,followed by the vegetative stem height,reproductive stem height,leaf length,internode length,internode diameter,inflorescence length,spikelet number,leaf width,inflorescence branch number,spikelet width and inflorescence length.There were significant correlations among some morphological characters of C.dactylon accessions.The biggest correlation coefficient was between reproductive stem height and turf height，was 0.9201.Four principle elements were obtained,which contribute over 82.97% of variance,especially the height factor (51.84%).

参考文献/References:

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备注/Memo

第一作者简介：郑轶琦（1977-），女，博士，副教授，现主要从事草坪草种质资源与遗传育种等研究工作。E-mail：yiqi214@163.com.基金项目：国家自然科学基金资助项目（31101754）。

更新日期/Last Update: 2015-02-13