摘要
为充分挖掘利用优异高粱种质资源,选育高粱新品种,提高黑龙江省高粱种质资源利用效率,以179份高粱资源为试验材料,运用相关分析、聚类分析等方法综合分析12个农艺性状。结果表明,179份高粱种质资源在12个农艺性状上,均表现出丰富的遗传多样性,变异系数变化在13.70%~128.32%,大小表现为着壳率>粒形>角质率>株高>单穗粒重>壳色>粒色>穗柄长>千粒重>穗柄径>茎粗>抽穗日数。相关分析得出,单穗粒重与千粒重、株高、抽穗日数、茎粗、穗柄径和穗柄长呈显著(P<0.05)或极显著(P<0.01)正相关,千粒重与穗柄径、茎粗呈极显著(P<0.01)正相关,着壳率与千粒重呈极显著(P<0.01)负相关。聚类分析可将179份高粱资源分成4个类群,宜在不同类群间选配亲本开展杂交以培育新种质。筛选出DY042、DY048、DY155三份资源可用作食用高粱改良的基础材料。DY062可作为提高粒重、穗重,降低着壳率的亲本加以利用。
To make full use of excellent sorghum germplasm resources,breed new sorghum varieties,and improve the utilization efficiency of sorghum germplasm resources in Heilongjiang Province,179 sorghum resources were used as experimental materials to comprehensively analyze 12 agronomic traits using correlation analysis,cluster analysis and other methods.The results showed that 179 sorghum germplasm resources showed abundant genetic diversities in 12 agronomic traits,with variation coefficients ranging from 13.70%to 128.32%,and comparisons among traits in variation coefficients performed as grain covering>grain shape>vitreous rate>plant height>grain weight per panicle>grain shell color>grain color>panicle stalk length>thousand-grain weight>diameter of peduncle>stem diameter>heading days.Correlation analysis showed that the grain weight per panicle was significantly(P<0.05)or extremely significantly(P<0.01)positively correlated with the thousand-grain weight,plant height,heading days,stem diameter,diameter of peduncle and panicle stalk length,and the thousand-grain weight was extremely significantly(P<0.01)positively correlated with the panicle stalk diameter and stem diameter.The grain covering was significantly(P<0.01)negatively correlated with the thousand-grain weight.A total of 179 sorghum resource materials were divided into four clusters by the cluster analysis.It was appropriate to select the materials as parents among different clusters for hybridization to breed new germplasm.Three resource materials,DY042,DY048 and DY155,were screened out and could be used as basic materials for edible sorghum improvement.DY062 could be used as parent to increase grain weight and panicle weight,and reduce grain covering.
作者
付连双
和阳升
王欣晨
王晓楠
单大鹏
严洪冬
李祥羽
唐贵
FU Lianshuang;HE Yangsheng;WANG Xinchen;WANG Xiaonan;SHAN Dapeng;YAN Hongdong;LI Xiangyu;TANG Gui(School of Agriculture,Northeast Agricultural University,Harbin 150030,China;Suihua Branch,Heilongjiang Academy of Agricultural Sciences,Suihua Heilongjiang 152052,China;Institute of Crop Resource Research,Heilongjiang Academy of Agricultural Sciences,Harbin 150086,China;Institute of Rural Revitalization Science and Technology,Heilongjiang Academy of Agricultural Sciences,Harbin 150023,China)
出处
《东北农业大学学报》
CAS
CSCD
北大核心
2024年第2期1-9,共9页
Journal of Northeast Agricultural University
基金
黑龙江省重点研发计划资助项目(GA21B009)。
关键词
高粱
种质资源
聚类分析
sorghum
germplasm resource
cluster analysis
