Table 2. Analysis of variance of floral traits with sterility and family as fixed effects, for estimation of family-level effects due to genetic background.

Source	DF	Corolla width		Corolla length		Style length		Exsertion
		F	P	F	P	F	P	F	P
Family	6	82.14	<0.0001	91.13	<0.0001	46.38	<0.0001	34.52	<0.0001
Sterility	1	74.99	<0.0001	91.26	<0.0001	23.27	<0.0001	451.59	<0.0001
Family × sterility	6	11.31	<0.0001	4.01	0.001	2.87	0.007	11.29	<0.0001

Samples sizes are same as above.