干旱地区农业研究2025，Vol.43Issue(5)：1-14,14.DOI:10.7606/j.issn.1000-7601.2025.05.01
谷子种质资源农艺性状与品质的多样性分析及综合评价
Diversity analysis and comprehensive evaluation of agronomic traits and quality of foxtail millet germplasm resources
摘要
Abstract
In order to explore the excellent germplasm resources of foxtail millet,126 foxtail millet germplasm accessions were selected from national and provincial resource banks and relevant domestic institutions.A two-year agronomic trait investigation was conducted,and 100 accessions were selected for nutritional quality analysis.Vari-ous analytical methods were employed for research and comprehensive evaluation.The results showed that,in terms of agronomic traits,there was abundant variation among the millet germplasm accessions.The coefficient of variation for 16 traits ranged from 9.30％to 66.66％.The variation of main stem height was the smallest and the variation of seedling color was the largest.Correlation analysis revealed significant positive correlations between straw per plant mass and various factors such as spike mass per plant,community production,grain mass per plant(P＜0.05).Cluster analysis divided the materials into five major groups,each with distinct characteristics.Group Ⅰ was characterized by tall plants and large panicles,which could be used for screening forage millet.Group Ⅱ,with the shortest peduncle,could be employed for selecting short-statured millet suitable for mechanical harvesting.Group Ⅲ had the lowest average main stem height and the highest average spike mass per plant,grain mass per plant,and community production,making it suitable for selecting short yet high-yielding millet.Group Ⅳ had the largest thousand-seed weight,ideal for grain breeding materials.Principal component analysis divided quantitative traits into four principal components,with a cumulative contribution rate of 77.493％.According to the comprehen-sive score(F value)calculated by the weight of contribution rates of each trait,the top 10 excellent materials,such as'60-day hongjiugu'and'Huangjiugu',were selected.In the quality analysis,the coefficients of variation for the trace elements Fe and Se were relatively large,at 44.97％and 70.00％,respectively.There was a significant positive correlation between total starch content and amylopectin content(r=0.83),while starch content and crude protein content exhibited a negative correlation(r=-0.98).Principal component analysis divided nutritional quality into three principal components,with a cumulative contribution rate of 72.559％.A functional expression was constructed to comprehensively evaluate nutritional quality,and 10 resources,including'Jinuogu No.1'with the highest score,could be used as excellent breeding materials.关键词
谷子/种质资源/农艺性状/品质/多样性分析/综合评价Key words
foxtail millet/germplasm resources/agronomic traits/quality/diversity analysis/comprehensive evalu-ation分类
农业科学引用本文复制引用
任瑞玉,李亚伟,董孔军,何继红,刘天鹏,张磊,杨天育..谷子种质资源农艺性状与品质的多样性分析及综合评价[J].干旱地区农业研究,2025,43(5):1-14,14.基金项目
甘肃省农业科学院区域协同创新项目(2024GAAS03) （2024GAAS03）
甘肃省农业科学院重点研发计划项目(2022GAAS41) （2022GAAS41）
国家现代农业产业技术体系(CARS-06-14.5-A8) （CARS-06-14.5-A8）
甘肃省科技计划项目(23CXNA0036) （23CXNA0036）
