Table 1. Microsporangium size in phb-7D and jba-1D mutants.

Microsporangia of stage 12 anthers were measured; n ≥ 66 for each wild type and mutant. Each value is the mean ± sd. Dashes indicate data is not available. Asterisks indicate statistical significance (Student’s t test, *, P < 0.05 and **, P < 0.01). FuM, Fused microsporangium; IM, inner microsporangium; OM, outer microsporangium.

Name	Parameter	IM	OM	FuM
C24	Length	329.3 ± 25.9	372.8 ± 30.3	–
	Width	87.3 ± 6.4	103.5 ± 10.2	–
phb-7D	Length	236.47 ± 43.9**	338.0 ± 43.4*	–
	Width	88.4 ± 11.1	100.7 ± 12.0	–
Col-7	Length	391.1 ± 51.0	410.0 ± 54.1	–
	Width	94.9 ± 11.9	105.0 ± 15.2	–
jba-1D	Length	–	–	373.4 ± 47.5*
	Width	–	–	161.5 ± 22.7**