Journal of Agricultural Science and Technology ›› 2023, Vol. 25 ›› Issue (6): 22-31.DOI: 10.13304/j.nykjdb.2021.0853

• BIOTECHNOLOGY & LIFE SCIENCE • Previous Articles     Next Articles

Main Agronomic Characters Analysis and High Quality Germplasm Selection of Introduced Fagopyrum esculentum Moench

Shan HE1(), Wei HAN1(), Yuancheng ZHOU2(), Weili HAO1, Zhixia LIU1, Yafei LAN1, Dongchen NA1, Min CHAI1(), Yiling WANG1()   

  1. 1.College of Life Sciences, Shanxi Normal University, Taiyuan 030092, China
    2.Wheat Research Institute, Shanxi Agricultural University, Shanxi Linfen 041000, China
  • Received:2021-10-01 Accepted:2022-01-18 Online:2023-06-01 Published:2023-07-28
  • Contact: Min CHAI,Yiling WANG

引进甜荞品种的主要农艺性状分析及优异种质筛选

何珊1(), 韩伟1(), 周元成2(), 郝伟丽1, 刘志霞1, 兰亚飞1, 那冬晨1, 柴敏1(), 王祎玲1()   

  1. 1.山西师范大学生命科学学院,太原 030092
    2.山西农业大学小麦研究所,山西 临汾 041000
  • 通讯作者: 柴敏,王祎玲
  • 作者简介:何珊 E-mail:1426464667@qq.com
    韩伟 E-mail:2864537981@qq.com
    周元成 E-mail:zyc813573@163.com第一联系人:韩伟和周元成为共同第一作者。
  • 基金资助:
    山西省临汾市重点研发计划-国际合作项目(1919)

Abstract:

To increase and optimize the Fagopyrum esculentum Moench germplasm resources in Shanxi, and screen the varieties of high-yield and high-quality, 51 varieties introduced from foreign were used as materials. 11 agronomic traits were determined and evaluated by the diversity analysis, grey correlation analysis, principal component analysis and comprehensive D value. The results indicated that the abundant variations were found in 51 varieties. And the coefficients of variation of the 11 agronomic traits were ranged from 9.562% to 115.337%, which the coefficients of variation of grain number per plant, seed weight per plant, yield, number of first-order lateral branches, main stem section number, plant height, stem diameter and 1 000-grain weight were more than 20%. The principal component analysis showed that the cumulative contribution rate of four principal components was 83.247%. Correlation analysis indicated that the yield was significantly positively correlated with plant height, stem diameter, grain yield per plant, and grain number per plant, which was the highest correlation coefficient with grain number per plant. The comprehensive results of various analyses showed that the grain number and grain weight per plant might be considered for breeding of buckwheat. Meanwhile, 51 varieties were classified into 8 major groups by cluster analysis, of which PI 658426 and PI 427236 in group Ⅶ were regarded as the high-yield varieties, 6 varieties in group Ⅷ showed excellent traits. Finally, according to the comprehensive D value, 11 sweet buckwheat varieties were identified as high-yield and high-quality.

Key words: Fagopyrum esculentum Moench, agronomic traits, screening, comprehensive D value evaluation

摘要:

为扩大并优化山西甜荞种质资源,筛选高产优质品种,通过多样性分析、灰色关联度分析、主成分分析和综合D值评价等方法对51份引进的甜荞品种的11个农艺性状进行分析。结果表明,引进品种遗传变异丰富。11个农艺性状的变异系数为9.562%~115.337%,其中,单株粒数、单株粒重、产量、一级侧枝数、主茎节数、株高、茎直径、千粒重的变异系数均大于20%。主成分分析表明,前4个主成分的累计贡献率达83.247%。相关分析表明,产量与株高、茎直径、单株粒重、单株粒数呈极显著正相关,其中与单株粒数的关联度最高。综合相关分析、主成分分析以及灰色关联度分析结果,在对引起甜荞选育时,应着重考虑单株粒数与单株粒重。聚类分析将51个品种聚为8个类群,其中第Ⅶ类群中PI 658426、PI 427236为高产品种;第Ⅷ类群的6个品种为性状优良品种。最后根据综合D值进行评价,初步筛选出11份高产优质甜荞品种。

关键词: 甜荞, 农艺性状, 筛选, 综合D值评价

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