植物遗传资源学报2026，Vol.27Issue(3)：554-565,12.DOI:10.13430/j.cnki.jpgr.20251025001
442份谷子育成品种(系)在山西的表型多样性分析
Phenotypic Diversity Analysis of 442 Foxtail Millet Varieties(Lines)in Shanxi Province
摘要
Abstract
Phenotypic diversity analysis and comprehensive evaluation were conducted on 442 foxtail millet varieties(lines)in Shanxi province to delineate their phenotypic variation and diversity.Analysis of the eight qualitative traits revealed that the genetic diversity index ranged from 0.1900 to 1.0246,with only grain color greater than 1.0000.For the 15 quantitative traits,the genetic diversity index ranged from 1.9613 to 2.0865,all greater than 2.0000 except for panicle length and the length of the penultimate leaf.The coefficients of variation for quantitative traits ranged from 8.09％to 23.18％.Higher variation was observed in grain number per spikelet,single panicle weight,and grain weight per panicle,while lower variation was noted for the width of the penultimate leaf,thousand-grain weight,heading date,and growth duration.These results indicate substantial phenotypic diversity among the accessions.Correlation analysis revealed complex relationships among the quantitative traits,including a highly significant positive correlation(r=0.9676,P＜0.001)between single panicle weight and grain weight per panicle.Principal component analysis extracted five principal components,accounting for 78.46％of the total variance.Based on these components,comprehensive evaluation scores(F-values)ranged from 0.2099 to 0.8549,with 2017 K Ce 1 being the highest and Taixuangu 29 Ai the lowest.Cluster analysis classified the 442 varieties(lines)into three groups:Group Ⅰ(intermediate type),Group Ⅱ (tall and late-maturing type),and Group Ⅲ(early-maturing type),with significant differences observed among the groups.This study provides valuable germplasm resources and theoretical basis for future genetic research,germplasm innovation,and breeding practice.关键词
谷子/育成品种(系)/表型性状/多样性分析/综合评价Key words
foxtail millet/varieties(lines)/phenotypic traits/diversity analysis/comprehensive evaluation引用本文复制引用
任莹,王宏勇,王拴锁,常利芳,侯雅静,郝雅萍,赵凯..442份谷子育成品种(系)在山西的表型多样性分析[J].植物遗传资源学报,2026,27(3):554-565,12.基金项目
山西农业大学科技创新提升工程(CXGC2025046) （CXGC2025046）
国家现代农业产业技术体系(CARS-06-14.5-B8)Science and Technology Innovation Enhancement Program of Shanxi Agricultural University(CXGC2025046) （CARS-06-14.5-B8）
China Agriculture Research System(CARS-06-14.5-B8) （CARS-06-14.5-B8）
