Direct and indirect selection on mate choice during pollen competition: Effects of male and female sexual traits on offspring performance following two-donor crosses.

The regression analysis based on recipient means similarly suggested a positive relationship between pistil‐based onset of stigma receptivity and offspring seed production ( F 1,10 = 22.5, p < .001, Figure 3e ), although the effects of both pollen traits failed to reach statistical significance (pollen tube growth rate: F 1,13 = 3.30, p = .092; pollen‐based onset: F 1,14 = 1.92, p = .19) (Figure 3a,c ).

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