Frequency of males, hermaphrodites, and females among the progeny of plants grown under high- vs. low-density conditions and in the presence vs. absence of males.

Shown are the relative pollen production of hermaphrodites versus males (ph, where ph = πh/πm), the relative seed production of hermaphrodites versus females (oh, where oh = σh/σf), the frequency of each sex in the next generation, and the sample size. G values are given for tests of independence of sex frequencies from the parental versus progeny generation for each plot. GH refers to tests of heterogeneity between plots in the same treatment. GP combines data from all plots, testing for overall changes in the frequency of the three sex phenotypes.*P**P***P