晋北地区引种苦荞麦的生态适应性与主成分分析  

Ecological Adaptability and Principal Component Analysis of Tartary Buckwheat in North Shanxi

作　　者：王慧[1] 杨媛[1] 石金波[1] 赵萍[1] 郭忠贤[1] 李占成[1] 李荫藩[1] 

机构地区：[1]山西省农业科学院高寒区作物研究所,山西大同037008

出　　处：《中国农学通报》2017年第16期23-27,共5页Chinese Agricultural Science Bulletin

基　　金：山西省农业科学院育种基础项目"优质;高产苦荞麦资源的收集与利用"(Yyzjc1402);山西省农业科学院育种工程项目"晋北优质荞麦新品种的筛选及利用"(16yzgc092);国家现代农业技术体系建设专项资金"国家燕麦荞麦产业技术体系大同综合试验站"(CARS-08-E-7)

摘　　要：为了探讨晋北地区14份引种苦荞麦的生态适应性,比较了各品种的生育期、主要农艺性状的遗传变异,并运用主成分分析方法对生物学性状进行评价。结果表明,一级分枝数、单株粒数和单株粒重的变异系数较大,株高和主茎节数的变异系数较小;一级分枝数与单株粒重、单株粒重间相关性显著(P<0.05);单株粒数和单株粒重间相关系数达极显著水平(P<0.01);前4个主成分的累计贡献率达93.216%,对苦荞产量贡献的主成分顺序是籽粒数量构成因子>籽粒质量构成因子>植株高度构成因子>主茎构成因子;在选择苦荞麦品种时应着重第一、二、三主成分的综合选择。根据主成分分析综合得分,筛选出‘云荞1号’和‘黔苦6号’,在晋北地区综合性状表现良好。The objective is to explore the ecological adaptability of fourteen tartary buckwheat varieties in northShanxi. The growth period and genetic variation of main agronomic characters of the varieties were compared,and biological traits were analyzed by using principal component analysis method. The results showed that thevariation coefficients of grade branch number, grain number per plant and grain weight per plant were larger,while those of plant height and the number of stem section were smaller. There was a significant correlationbetween grade branch number and grain number per plant as well as grain weight per plant（P〈0.05）, thecorrelation between grain number per plant and grain weight per plant reached extremely significant level（P〈0.01）. The cumulative contribution rate of the first four principal components was 93.216%. The order of maincomponent was grain number component factorgrain yield component factorplant height component factorstem component factor. The comprehensive selection of the first, second and third main component should bethe important reference when selecting tartary buckwheat varieties. According to the comprehensive score,‘Yunqiao 1＇and‘Qianku 6＇were selected which had the best traits in north Shanxi.

关 键 词：苦荞麦 农艺性状 相关分析 主成分分析 

分 类 号：S517[农业科学—作物学]