摘要
利用５个普通玉米自交系和５个高赖氨酸玉米自交系，按Ｇｒｉｆｉｎｇ方法４模式配制双列杂交组合，分析了杂交Ｆ１代籽粒性状的遗传表现和配合力效应。从平均值看，普通玉米较高赖氨酸玉米在籽粒密度、百粒重和穗粒重性状上普遍为高，而籽粒含水量较低。普通玉米和高赖氨酸玉米杂交Ｆ１代籽粒性状介于中间，但明显偏向普通玉米。以硬质粒普通玉米作亲本可以改良高赖氨酸玉米籽粒的缺陷。配合力分析表明，同一亲本在不同性状间一般配合力效应值有很大差异，同一籽粒性状在不同亲本间一般配合力效应值也有很大差异。籽粒密度和籽粒含水量在遗传上主要受基因加性效应影响；穗粒重和百粒重同时受加性和非加性效应作用。
おhe experiment of a diallel crosses using five high lysine and five normal inbred lines of maize was conducted in order to characterize the genetic variation and combing ability of kernel characters The F1 kernel density of normal×normal maize inbred line was more higher, moisture content lower, and 100-kernel and ear kernel weight larger than that of high lysine×high lysine maize inbred line The F1 kernel characters of high lysine×normal maize inbred line were intermediate, but more close to that of mormal maize than that of high lysine maize, informing that the feasibility of normal maize using as parents to improve the shortcomings of kernel characters of the high lysine maize The analysis of combing ability showed that there existed a large differences among the General Combing Ability of parents for one kernel character, and the case was true among the GCA of kernel characters for one parent Additive genic effect was more important than non-additive for kernel density and moisture content, but both were important for 100-kernel and ear kernel weight
出处
《东北农业大学学报》
CAS
CSCD
1998年第2期105-110,共6页
Journal of Northeast Agricultural University
关键词
玉米
杂交后代
籽粒性状
遗传分析
Shigh-lysine maize
normal maize
kernel character
general combing ability
special combing ability
