Three sets of data for the P₁, P₂, F₁, and F₂ populations derived from three crosses between the normal fertility wheat (Triticum aestivum L.) cultivars with different ecotypes and the female sterile line (XND126) were used to investigate the inheritance of female fertility in wheat using mixed major gene plus polygenes inheritance model in 2005 and 2006. The results from the joint segregation analysis of the four generations showed that female fertility in wheat is controlled by two major genes plus polygenes, and the interaction between the two major genes is also detected.