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中国农学通报 ›› 2017, Vol. 33 ›› Issue (16): 23-27.doi: 10.11924/j.issn.1000-6850.casb16070027

所属专题: 资源与环境 小麦 农业生态

• 农学 农业基础科学 • 上一篇    下一篇

晋北地区引种苦荞麦的生态适应性与主成分分析

王慧,杨媛,石金波,赵萍,郭忠贤,李占成,李荫藩   

  1. 山西省农业科学院高寒区作物研究所,山西省农业科学院高寒区作物研究所,山西省农业科学院高寒区作物研究所,山西省农业科学院高寒区作物研究所,山西省农业科学院高寒区作物研究所,山西省农业科学院高寒区作物研究所,山西省农业科学院高寒区作物研究所
  • 收稿日期:2016-07-07 修回日期:2016-08-18 接受日期:2016-08-25 出版日期:2017-06-08 发布日期:2017-06-08
  • 通讯作者: 郭忠贤
  • 基金资助:
    山西省农业科学院育种基础项目(Yyzjc1402);山西省农业科学院育种工程项目(16yzgc092);国家现代农业燕麦荞麦产业技术体系大同综合试验站建设专项资金资助项目(CARS-08-E-7)。

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

  • Received:2016-07-07 Revised:2016-08-18 Accepted:2016-08-25 Online:2017-06-08 Published:2017-06-08

摘要: 为了探讨晋北地区14份引种苦荞麦的生态适应性,分析了各品种主要农艺性状的遗传变异及其相关性,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。

关键词: 胺唑草酮, 胺唑草酮, 光解, pH, 不同水体, 腐殖酸, 表面活性剂

Abstract: The objective is to explore the ecological adaptability of fourteen tartary buckwheat varieties in north Shanxi. 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 the variation 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 correlation between grade branch number and grain number per plant as well as grain weight per plant (P <0.05), the correlation 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 main component was grain number component factor>grain yield component factor>plant height component factor> stem component factor. The comprehensive selection of the first, second and third main component should be the 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.