花椰菜主要农艺性状的遗传效应及其与环境互作分析  

Analysis of Genetic Effects and Genotype×Environment Interactions for Important Agronomic Traits in Cauliflower (Brassica oleracea L. var. botrytis L.)

作　　者：杨加付[1] 饶立兵 顾宏辉[3] 叶子弘[4] 

机构地区：[1]温州大学生命与环境科学学院,浙江温州325035 [2]温州市农业科学研究院蔬菜研究所,浙江温州325006 [3]浙江省农业科学院蔬菜研究所,杭州310021 [4]中国计量学院生命科学学院,杭州310018

出　　处：《科技通报》2010年第3期396-401,共6页Bulletin of Science and Technology

基　　金：浙江省科技计划项目(2004C32012)

摘　　要：利用包括基因与环境互作的加性-显性遗传模型对6个花椰菜品种(系)完全双列杂交实验的2年观察资料进行单球重、球径、球高、株高、株幅和叶片数等农艺性状的遗传分析。结果表明,年份间的环境差异对亲本和F1的表现影响较小;单球重、球径和球高以加性效应为主,通过早代选择可取得较好的改良效果,株高、株幅和叶片数以显性效应为主,且具有较大的环境互作效应,以高世代选择为好;单球重、球径和球高的狭义遗传率均较高(63.98%～86.16%),且都以普通狭义遗传率为主,对其进行遗传改良能够取得较好的效果,株高、株幅和叶片数都以互作狭义遗传率为主,选择效果易受到环境条件的影响。基因效应预测值表明,c-5、c-8和福州80天是提高单球重的良好亲本;c-5是增加球径的良好亲本;c-8和福州80天是增加球高的良好亲本。An additive-dominant genetic model with genotype-environment（GE） interaction was employed to genetic analyze of head weight,head diameter,head height,plant height,plant spread width and leaf number in cauliflower,based on 2-year data from 6×6 diallel crosses.The results indicate that the effect of environmental deviation of different years on agronomic traits of parents and F1 was less.These traits could be improved by selection in early generations for head weight,head diameter,head height which were mainly affected by additive effects.However,the selection effects were prone to be affected by the dominance effects and genotype×environment interaction effects for plant height,plant spread width and leaf number and therefore the improvement effects would be better for these traits by conducting selections in advanced generations.The heritabilities including general heritability and interaction heritability were higher ranging from 63.98% to 86.16% for head weight,head diameter,head height.Furthermore,the general heritabilities accounted for the main contributed values for these traits which could be improved through selections.The interaction heritabilities of plant spread width,plant height and leaf number were the main values,and therefore the selection effects were easily affected by the various environments.The prediction of genetic effects of 6 parents showed that c-5,c-8,and Fuzhou 80 were the better parents for increased head weight,while c-5 was the better parent for added head diameter,c-8 and Fuzhou 80 were the better parents for added head height.

关 键 词：花椰菜 农艺性状 遗传效应 基因型×环境互作效应 

分 类 号：S330[农业科学—作物遗传育种]