绪言根据四个不同的双列杂交系统,结合考虑试材取样两个可供选择的假说,格里芬(1956)提出了八种不同的分析方法。他指出,在不包括亲本的情况下方法3和方法4是最适合的。相反,根据文献报导,方法1和方法2应用最广泛。虽然包括亲本到什么程度在配合力方差以及效应的估算上可能出现的真实偏倚尚不清 INTRODUCTION Based on four different double-line hybridization systems, combined with two alternative hypotheses to consider sample sampling, Griffin (1956) proposed eight different analytical methods. He pointed out that Method 3 and Method 4 were most suitable when the parent was not included. On the contrary, according to the literature, Method 1 and Method 2 are the most widely used. Although the true bias that may arise in assessing variance of cohesion forces and effects is not clear, including the extent to which the parents are