一、平均数与变量 质量性状的分析一般用基因频率和基因型频率表示,而数量性状则须用统计方法进行测量。例如数量性状的表现型值通常就是用平均数、变量及互交量等来表示的。一个群体如果包含个体数量很多,则其平均环境偏差等于0,即: ΣE=0(1)所以在一个大群体里,表现型平均值 First, the average and variables Quality traits are generally analyzed using gene frequency and genotype frequency, and quantitative traits have to be measured using statistical methods. For example, phenotypic values ​​of quantitative traits are usually expressed as averages, variables, crossovers, and the like. If a population contains a large number of individuals, its average environmental deviation is equal to 0, that is: ΣE = 0 (1) So in a large population, phenotype average