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本文采用世代平均数遗传分析方法,沿用了加性-显性、加性-显性-上位性和环境(二种)×基因型三种模型,对陆地棉主要纤维品质性状中的长度、细度、强度和断裂长度的基因效应、年份效应以及年份×基因型互作进行了估测。经过三年的实验,选用三个杂交组合,每一组合含有P_1、p_2、F_1、F_2、B_1和B_2六个群体的资料。结果表明,四个纤维品质性状的遗传受加性、显性、上位性作用的共同控制,但在不同年份或不同的组合里,显性作用和上位性作用的变化较大;年份效应对品质性状的遗传也有较大影响,其影响方式主要以年份×基因型互作的形式表现。
In this paper, three generations of additive-dominance, additive-dominance-epistasis and environment (two types) × genotypes were inherited by means of generational average genetic analysis. The effects of length, fineness Genetic effects of length, intensity and length of breakage, year effect and year × genotype interaction were estimated. After three years of experiment, three hybrid combinations were selected, and each combination contained six groups of P_1, P_2, F_1, F_2, B_1 and B_2. The results showed that the inheritance of four fiber quality traits was controlled by additive, dominant and epistatic effects. However, in different years or different combinations, the dominant and epistatic effects varied greatly. The effects of years on quality Genetic traits also have a greater impact, the main impact of the year × genotype interaction in the form of performance.