内蒙古民族大学学报（自然科学版）2026，Vol.41Issue(3)：40-48,9.DOI:10.14045/j.cnki.15-1220.2026.03.006
谷子苗期抗旱性种质鉴定
Identification of Drought-Resistant Germplasm in Foxtail Millet at the Seedling Stage
摘要
Abstract
Drought is one of the most severe natural disasters worldwide,and identifying crop drought resistance is crucial for variety screening.To provide valuable materials and an evaluation basis for breeding drought-resistant foxtail millet varieties,a comprehensive evaluation of drought resistance at the seedling stage was conducted using 217 foxtail millet germplasm resources.By simulating drought and normal conditions,relevant phenotypic traits were measured,fol-lowed by correlation analysis and principal component analysis.The results indicated that the six relative trait indices exhibited a variation range of 19%to 59%,suggesting rich genetic diversity in drought resistance among the tested ma-terials,which rendered them suitable for drought resistance evaluation.Based on cluster analysis using the comprehen-sive score(F-value)derived from PCA,the 217 foxtail millet germplasms were categorized into four groups:60 acces-sions with drought-resistant type,60 with moderately resistant type,47 with moderately sensitive type,and 50 with sen-sitive type.Furthermore,based on the F-values,the top 10 varieties with the strongest drought resistance were identi-fied as follows:Zhonggu 19,24D1-12,Yugu 18,Yugu 1,Datong 37,W11-50,Nonggu 1,Jinxiangyu Xiaobaimi,Feng-zagu 1,and Yangu 14.关键词
谷子种质/苗期/相关性分析/主成分分析Key words
millet germplasm/seedling stage/correlation analysis/principal component analysis分类
农业科技引用本文复制引用
姜金岳,白青海,李建波,吴春风,乌日根达来,李志刚..谷子苗期抗旱性种质鉴定[J].内蒙古民族大学学报（自然科学版）,2026,41(3):40-48,9.基金项目
内蒙古自治区直属高校基本科研业务费项目(GXKY26Z073) （GXKY26Z073）
