引进甜荞品种的主要农艺性状分析及优异种质筛选  

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

作　　者：何珊 韩伟 周元成[2] 郝伟丽 刘志霞 兰亚飞 那冬晨[1] 柴敏 王祎玲[1] HE Shan;HAN Wei;ZHOU Yuancheng;HAO Weili;LIU Zhixia;LAN Yafei;NA Dongchen;CHAI Min;WANG Yiling(College of Life Sciences,Shanxi Normal University,Taiyuan 030092,China;Wheat Research Institute,Shanxi Agricultural University,Shanxi Linfen 041000,China)

机构地区：[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

出　　处：《中国农业科技导报》2023年第6期22-31,共10页Journal of Agricultural Science and Technology

基　　金：山西省临汾市重点研发计划-国际合作项目(1919)。

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。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 1000-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 groupⅦwere regarded as the high-yield varieties,6 varieties in groupⅧshowed excellent traits.Finally,according to the comprehensive D value,11 sweet buckwheat varieties were identified as high-yield and high-quality.

关 键 词：甜荞 农艺性状 筛选 综合D值评价 

分 类 号：S517[农业科学—作物学]