199份高粱种质资源农艺性状综合分析  

Comprehensive Analysis on Agronomic Traits of 199 Sorghum Germplasm Resources

作　　者：李资文 周伟[1] 李岩 余忠浩 罗巍 王振国 周亚星[1] LI Ziwen;ZHOU Wei;LI Yan;YU Zhonghao;LUO Wei;WANG Zhenguo;ZHOU Yaxing(Agricultural College of Inner Mongolia Minzu University,Tongliao Inner Mongolia 028042,China;Tongliao Agricultural and Animal Husbandry Research Institute,Tongliao Inner Mongolia 028042,China)

机构地区：[1]内蒙古民族大学农学院,内蒙古通辽028042 [2]通辽市农牧科学研究所,内蒙古通辽028042

出　　处：《种子》2023年第1期70-78,共9页Seed

基　　金：国家谷子高粱产业技术体系(CARS-06-B 14);内蒙古自治区高等学校青年科技英才项目(NJYT 22052);内蒙古自治区科技计划项目(2020 GG 0102);内蒙古自然科学基金项目(2019 MS 03076);国家民委高等教育教学改革研究项目(21087);内蒙古自治区教育科学规划课题(NGJGH 2021123);内蒙古自治区哲学社会科学规划项目(2022 ZZB 001);内蒙古民族大学博士科研启动基金项目(BS 621)共同资助

摘　　要：为提高西辽河地区高粱种质资源利用效率,以199份高粱种质资源为材料,运用主成分分析、聚类分析等方法对其16个农艺性状进行综合分析。结果表明,西辽河地区高粱种质资源农艺性状的变异范围在6.51%~53.75%之间,遗传多样性指数变幅介于0.678~2.046之间,株高(53.75%)和穗形(50.06%)的变异系数最大,茎粗(2.027)、穗柄长(2.020)、千粒重(2.046)3个数量性状的遗传多样性指数最大。通过主成分分析将16个农艺性状简化为9个主成分,累计遗传贡献率为86.702%。构建高粱种质资源评价方程,作为评价高粱种质农艺性状的综合指标。通过聚类分析将199份高粱种质划分为四大类群,分别对应早熟矮秆高粱、中早熟紧凑型高粱、中熟抗倒伏高秆高粱以及综合农艺性状优良的育种亲本,可在高粱新品种选育时根据育种需求有目的地选取育种亲本。In order to improve the utilization efficiency of sorghum germplasm resources in Xiliaohe region.Using 199 sorghum germplasm resources collected as materials,16 agronomic traits were comprehensively analyzed with principal component analysis and cluster analysis.The results showed that the variation of agronomic traits of sorghum germplasm resources in Xiliaohe region ranged from 6.51%to 53.75%,and the variation of genetic diversity index ranged from 0.678 to 2.046.The variation coefficients of plant height(53.75%)and ear shape(50.06%)were the largest.The genetic diversity index of stem diameter(2.027),panicle stalk length(2.020)and 1000-grain weight(2.046)were the highest.Through principal component analysis,16 agronomic traits were simplified into 9 principal components,with a cumulative genetic contribution rate of 86.702%.The evaluation equation of sorghum germplasm resources was constructed as a comprehensive index to evaluate the agronomic traits of sorghum germplasm.Through cluster analysis,199 sorghum germplasm were divided into four groups,corresponding to early-maturing dwarf sorghum,medium-early-maturing compact sorghum,medium-mature lodging resistant high-stalk sorghum and breeding parent lines with good comprehen sive agronomic traits,which could be selected according to the breeding needs of new sorghum varieties.

关 键 词：高粱 种质资源 质量性状 数量性状 综合分析 

分 类 号：S514[农业科学—作物学]