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Hayman(1954a)双列分析普遍用来估计纯育系群体的遗传变异组分,虽然对全双列表的标准误可作近似计算,但基于W_r 和V_r 大小的分析所提供的被估组分的标准误是无价值的。在本文我们提出遗传变异组分的估计方法,其均方是根据Morley-Jones(1965)和Walters与Morton(1978)的方法对半双列表的方差分析而来的,与它们的期望相等,而不是采用Wr 和Vr 的大小计算均方。因大多数组分的显著性可直接用它们的均方加以检验,所以这种方法有其优点。根据陆地棉8亲本半双列杂交对这两种方法进行了比较,并将得到的信息用
Hayman’s (1954a) double-row analysis is commonly used to estimate the genetic variation components of a pure-breeding population. Although the standard error for a full-duplex list can be approximated, estimates of the components estimated based on the W_r and V_r sizes Standard error is worthless. In this paper we propose a method for estimating the components of the genetic variation whose mean square is derived from the analysis of the variance of the semi-double lists according to the method of Morley-Jones (1965) and Walters and Morton (1978), which is equal to their expectation but not Calculate the mean square using the sizes of Wr and Vr. This method has its advantages because the significance of most of the components can be directly tested by their mean-squares. These two methods were compared on the basis of the Hm18 parent half-duplex hybridization and the information obtained was analyzed using