摘要
利用第3次全国种质资源普查中收集于河北省各个县市共246份地方种质,对其表型进行分析。结果表明,246份玉米地方品种遗传多样性丰富,子粒颜色分为10种,子粒形状分为4种。各个性状的变异幅度不同,其中分蘖数变异最大,变异系数达到111.34%。株高和穗位高、叶片数、穗上叶片数、雄穗分支数、穗长、穗粗、行粒数呈极显著正相关。主成分分析结果表明,3个主因子(特征值大于1)为株高和穗位高、雄穗分支数以及穗行数,共表现出65.435%表型变异。聚类分析将246份玉米地方种质资源划分为7个类群,各类群的地方种质表型特征不同。
In this study,a total of 246 landrace germplasms collected from various regions in Hebei Province during the third national germplasm resource census were analyzed for their phenotypic characteristics.The results showed that the genetic diversity among these 246 maize landraces was rich,with seed color categorized into 10 types and grain shape into 4 types.The extent of variation differed among traits,with tiller number showing the larg⁃est variation,coefficient of variation was 111.34%.Plant height was significantly positively correlated with ear height,leaf number,number of leaves on ear,tassel branch number,ear length,ear diameter and grain number per row.Principal component analysis showed that the three main factors(eigenvalue>1)were plant height and ear height,number of tassel branches,and kernel rows per ear,which collectively explained 65.435%of the phenotypic variation.Through cluster analysis,246 maize local germplasm resources were divided into 7 groups,each with dis⁃tinct phenotypic characteristics.
作者
李婷婷
郭瑞
王江浩
黄冀男
张芳
张全国
魏剑锋
李兴华
宋炜
郭晋杰
LI Ting-ting;GUO Rui;WANG Jiang-hao;HUANG Ji-nan;ZHANG Fang;ZHANG Quan-guo;WEI Jian-feng;LI Xing-hua;SONG Wei;GUO Jin-jie(Institute of Cereal and Oil Crops,Hebei Academy of Agriculture and Forestry Sciences/Hebei Laboratory of Crop Genetics and Breeding,Shijiazhuang 050035;College of Agronomy,Hebei Agricultural University/Hebei Sub-center of National Maize Improvement Center/State Key Laboratory of North China Crop Improvement and Regulation,Baoding 071001;Handan Agricultural and Rural Bureau,Handan 056002,China)
出处
《玉米科学》
北大核心
2025年第8期1-11,共11页
Journal of Maize Sciences
基金
国家玉米产业技术体系石家庄综合试验站项目(CARS-02-58)
河北省农林科学院科技创新专项(2022KJCXZX-LYS-4)
河北省重大专项(21326319D)
河北省留学人才资助项目(C20230306)
河北省农林科学院博士基金项目(C22R0302)。
关键词
玉米
农艺性状
相关性
主成分分析
聚类分析
Maize
Agronomic trait
Correlation
Principal component analysis
Cluster analysis
