二棱大麦熟期性状的遗传研究  

Genetic Studies of Maturity Traits in Two-Rowed Barley

作　　者：徐绍英[1] 闫新甫[1] 陈庆良 李碧秋 朱军[1] 

机构地区：[1]浙江农业大学农学系,杭州310029

出　　处：《生物数学学报》1998年第1期74-79,共6页Journal of Biomathematics

摘　　要：以甘木二条等7个二棱大麦品种进行不完全双列杂交，对其亲本、F1和F2的抽穗期，灌浆期和成熟期三个性状以1992和1995年（播种年份）的两年资料，采用加性-显性-上位性（ADAA）模型进行遗传分析．遗传方差分量的比率估算表明，三个性状都存在上位性作用．除灌浆期外，其余二性状还受显性和加性效应的作用，并以加性为主．显性效应和加性效应与环境的互作均达显著水平，基因效应的预测值表明采用P3（黔浙1号）和P4（浙农大3号）较易获得早熟后代．An incomplete diallel analysis of heading grain filling and maturing characters was carried out with F1,F2 and parents of 7 two-rowed barley varieties in 1992 and 1995 (sowing years) by using additive-dominance-epistatic model.The setimation of the ratio between components of genetic variance and phenotypic variance indicated that there were additive by additive epistatic effect for these traits.Except for grain filling,heading and maturing,were also controlled by dominance effect as well as by additive effect,the latter being main parts in the heritance.There were significant interaction between dominant effect and environment and between additive effect and environment in these three characters.The prediction of gene effects showed that closses varieties of Qinzhe No1 and zhenongda NO3,as parents were likely to segregate early-mature progenies.

关 键 词：大麦 熟期性状 ADAA模型 遗传效应值 

分 类 号：S512.303.2[农业科学—作物学]