Table 3.

Probability (P) values from mixed-model ANOVA of the size of seeds developed on mother plants and of performance of offspring.

Variable	Exp. year	Case 1	Case 2
		Maternal CO2	Maternal CO2	Plant type	Maternal CO2 × Plant type
MOTHER PLANTS
Seed size	Pre-exp.	0.131	0.282	0.004	0.031
OFFSPRING
Seedling emergence	2006	0.880	0.698	0.046	0.696
	2007	0.159	0.353	0.020	0.242
Anthesis	2006	0.499	0.562	0.023	0.796
	2007	0.988	0.935	0.149	0.809
Shoot biomass	2005	0.017	0.146	0.003	0.992
	2006	0.810	0.662	<0.001	0.948
Number of fruits per individual plant	2005	0.039	0.051	0.839	0.182
	2006	0.815	0.780	0.003	0.422
	2007	0.869	0.965	0.087	0.484
Number of seeds per individual plant Seed size	2006	0.691	0.646	<0.001	0.467
	2007	0.867	0.845	0.309	0.221
	2007	0.487	0.439	<0.001	0.224

Mixed models consisted of one-way ANOVA (Case 1) or two-way ANOVA (Case 2), and only fixed effects were presented (for random effects, see Materials and Methods). P values ≤ 0.05 were indicated in bold digits, P values ≤ 0.1 and > 0.05 were underlined.