Figure 3.

Mean dry shoot mass and coefficient of variation (CV) in P, F₁ and F₂ of the combination Col-0/C24. A, Mean dry shoot mass at 15 DAS (left axis) and 28 DAS (right axis). Means of at least 16 plants ± sd are shown. B, Coefficients of variation at 15 and 28 DAS. The analysis shows the defining characteristics of heterosis; superior performance of the F₁, and reduction of the effect in the F₂. For comparisons between F₁ and parents, plants grown from manually pollinated seeds were used, comparisons of the F₂ and the parents were done with plants from self-pollinated seeds.