摘要
为比较不同来源的玉米自交系在湖南生态条件下的表现,根据其群体结构,将种植于湖南省湘乡市棋梓桥镇龙江村的345份玉米自交系分为热带玉米、温带玉米和混合群3个亚群,对其7个穗部性状的变异系数、均值、偏度和峰度、相关性等进行比较分析。结果显示,各亚群的穗部性状均存在广泛的变异,不同亚群间部分穗部性状均值差异明显,但不同亚群均具有有利的性状。综合分析认为,热带玉米亚群表现较好,在选育适应湖南生态条件的玉米品种时,可以从中选择自交系作为亲本或供体材料。
In order to compare the performance of maize inbred lines from different sources under the ecological conditions of Hunan province,345 maize inbred lines planted in Longjiang village,Qiziqiao town,Xiangxiang city,Hunan province were divided into three subgroups:tropical maize,temperate maize and mixed group maize.The coefficient of variation,difference significance,skewness and kurtosis and correlation of ear traits of 345 maize inbred lines from different sources were analyzed. The results showed that the ear traits of all subgroups had wide variation.There were obvious differences among the mean values of ear traits in some subgroups,and different subgroups all had relatively dominant traits,which could provide germplasm resources for breeding ofmaize varieties adapted to Hunan.Tropical maize,which is better in Hunan,can be selected as parents or donor materials for maize varieties adapted to the ecological conditions in Hunan.
作者
王少莹
董晓蝶
刘颖
罗红兵
李瑞莲
邓敏
WANG Shaoying;DONG Xiaodie;LIU Ying;LUO Hongbing;LI Ruilian;DENG Min(College of Agronomy,Hunan Agricultural University/Hunan Maize Engineering Technology Research Centre,Changsha,Hunan 410128,China)
出处
《作物研究》
2020年第6期525-530,共6页
Crop Research
基金
湖南省自然科学基金(2018JJ3234)
湖南农业大学引进人才科研启动基金
关键词
玉米
自交系
穗部性状
种质资源
maize
inbred lines
ear traits
germplasm resource
