基于主成分分析的粳稻品质评价及聚类分析  

Japonica rice quality evaluation and cluster analysis based on principal component analysis

作　　者：张梅霞 陈荣江[2] 

机构地区：[1]河南丰源种子有限公司,河南新乡453700 [2]河南科技学院,河南新乡453003

出　　处：《河南科技学院学报（自然科学版）》2016年第5期1-6,共6页Journal of Henan Institute of Science and Technology(Natural Science Edition)

基　　金：河南省重点科技攻关项目(162102110172)

摘　　要：为探明影响黄淮流域粳稻品质的主要性状间的相互关系,以提高优质粳稻育种的预见性和可靠性,利用相关分析、主成分分析及聚类分析等分析方法,对河南省2010—2012年20个粳稻新品种的11个性状进行研究.结果表明:各性状中变异系数较高的有垩白度(64.46%)、垩白粒率(49.67%)、透明度(47.33%)、胶稠度(11.37%)和碱消值(10.20%),其他性状的变异系数较低,垩白度、垩白粒率、透明度对稻米品质的影响很重要;将11个品质性状提取垩白因子、精米因子、粒型因子、出米因子和胶稠度因子5个主成分,其累积方差贡献率为84.74%;20个品种被划分为4个类群,第Ⅰ类含4个品种,第Ⅱ类含8个品种,第Ⅲ类含3个品种,第Ⅳ类含5个品种.第Ⅱ类属优质类,其中新稻062235的综合品质居参试品种之首,达到优质粳稻国标一级标准.在优质粳稻育种实践中应以降低垩白度及垩白粒率为主攻目标.In order to improve the predictability and the reliability of high quality japonica rice breeding,and explore the relationship between the quality characters of japonica rice quality in Huang-Huai river basin,correlation, principal component analysis and cluster analysis were carried out on 11 characters of 20 new japonica rice varieties in Henan Province during 2010--2012.The results showed that the variation coefficient of chalkiness degree （64.46%）, chalky grain rate （49.67%）,transparency （47.33%）,gel consistency （ 11.37% ）,alkali spreading value （ 10.20% ） were higher than the other characters;chalkiness degree,chalky grain rate and transparency were very important to rice quality.The five principal components from 11 traits,the cumulative variance contribution rate 84.74% ,were respectively ehalkiness factor,milled rice,grain type factor, flee milling factor,gel consistency factor;20 variables were divided into four classes：Class I had 4 varieties;Class II contained 8 varieties;Class III contained 3 varieties;Class IV contained 5 varieties.Class II was a high quality class,in which the comprehensive quality of the Xin 062235 rice lied the first of the test varieties,up to the national standard level 1 of high quality japonica rice.In the breeding practice of high quality japonica rice,the main aim is to reduce the chalkiness and the chalky grain rate.

关 键 词：粳稻 品质性状 相关性 主成分分析 聚类分析 

分 类 号：S511.22[农业科学—作物学]