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中国农学通报

中国农学通报 ›› 2017, Vol. 33 ›› Issue (34): 20-25.doi: 10.11924/j.issn.1000-6850.casb16100062

所属专题： 小麦

• 农学 农业基础科学 • 上一篇    下一篇

荞麦新品种(系)在云南种植农艺性状的主成分和聚类分析

尹桂芳,王艳青,李春花,孙道旺,卢文洁,王莉花   

  1. 云南省农业科学院生物技术与种质资源研究所,云南省农业科学院生物技术与种质资源研究所,云南省农业科学院生物技术与种质资源研究所,云南省农业科学院生物技术与种质资源研究所,云南省农业科学院生物技术与种质资源研究所,云南省农业科学院生物技术与种质资源研究所
  • 收稿日期:2016-10-17 修回日期:2016-12-29 接受日期:2017-01-20 出版日期:2017-12-07 发布日期:2017-12-07
  • 通讯作者: 王莉花
  • 基金资助:
    国家燕麦荞麦产业技术体系“荞麦病害岗位”(CARS-08-C-2)；国家自然科学基金地区科学基金项目“米苦荞易脱壳性的遗传特性和分子标 记研究”(31460379)；云南省人才培养项目“云南省技术创新人才”(2014HB062)；云南省农业科学院专项“种质资源中期库运转、资源收集保存更新及 种质创制”(2016YFBZ003)。

Principal Component Analysis and Cluster Analysis of Main Agronomic Characters of Buckwheat New Varieties (Lines)

尹桂芳,王艳青,李春花,孙道旺,卢文洁 and 王莉花   

  • Received:2016-10-17 Revised:2016-12-29 Accepted:2017-01-20 Online:2017-12-07 Published:2017-12-07

摘要： 旨在筛选出最适合云南种植推广的新品种荞麦。对来自云南省内外14 份苦荞、8 份甜荞新品种（系）的8 个主要农艺性状，生育期、主茎分枝数、主茎节数、株高、单株粒数、单株粒重、千粒重、平均单产进行主成分和聚类分析。结果表明：苦荞的平均单产和单株粒重的遗传变异系数最大，分别是31.13%和26.38%，甜荞的单株粒数遗传变异系数最大是26.06%。应用主成分分析将8 个苦荞主要农艺性状简化为4 个综合指标，其累积贡献率为91.52%，甜荞的8 个主要农艺性状简化为3 个综合指标，其累积贡献率为92.92%。采用聚类分析，将14 份供试苦荞在遗传距离57.49 时，聚为3 类，将8 份甜荞在遗传距离39.46 时聚为3 类。基于性状表现，筛选到综合农艺性状表现优异、无倒伏、产量高，较适合云南推广种植的新品种（系），‘晋苦荞6号’、‘云荞1号’、‘六苦3号’、‘荞杂-2’、‘定甜荞2号’、‘本地大粒’。

关键词: 酸化剂, 酸化剂, 微生态制剂, 寡糖, 麒麟鸡, 生长性能, 酶活力

Abstract: The objective of this study is to screen new buckwheat varieties suitable for growing in Yunnan Province. The materials were 14 tartary buckwheat varieties (Fagopyrum tataricum ) and 8 common buckwheat (F. esculentum ) varieties from Yunnan Province or other provinces, and eight major agronomic characters including growth period, the rachis-branch and pitch number of main stalk, plant height, kernel number per plant (KNPP), kernel weight per plant (KWPP), thousand- grain weight and average yield per plant, were studied by principal component analysis and cluster analysis. The results showed that the genetic variation coefficients of average yield and KWPP in tartary buckwheat were the maximal, which was 31.13% and 26.38%, respectively, but in common buckwheat, the character with the largest coefficient of 26.06% was KNPP. By principal component analysis, the characters of tartary buckwheat and common buckwheat studied were divided into 4 and 3 comprehensive parameters, whose accumulative contribution rate was 91.52% and 92.92%, respectively. Using cluster analysis, it was found that both the varieties of tartary buckwheat and common buckwheat were clustered into 3 groups, when the value of genetic distance was 57.49 and 39.46, respectively. Based on the character performance in field, several varieties with good comprehensive agronomic characters, no lodging and high production were selected, such as‘Jinkuqiao 6’,‘Yunqiao 1’,‘Liuku 3’, ‘Qiaoza2’,‘Dingtianqiao 2’and‘Bendidali’, which could be popularized in Yunnan Province.

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