Figure 6

Generation performance from focus parent (P₁), through hybrid (F₁) and allogamous F₂ (F₂) to the allogamous F₃, with individual selection (P=0.1) at F₁ → F₂ and F₂ → F₃, under the partial dominance and environment variance defined previously. The mean and its components [accumulated selection advance (delta−G), and hybrid vigour from the mid-parent (vigour)] are given for two parental situations: (a) focal p₁=0.05, and (b) p₁=0.45. The other parent in each case is a complementary opposite.