Table 1.

Fertility segregation patterns of F₂ populations sown on Sept. 30, 2006

Cross	nt	ns	nf	χ2(p3:1)	P
337S/Huamai 8	262	64	198	0.05	0.75–0.90
337S/Hua 12	234	70	164	3.01	0.05–0.10
337S/24I37	253	75	178	2.91	0.05–0.10
337S/24I38	246	55	191	0.92	0.25–0.50
337S/24I58	238	68	170	1.62	0.10–0.25

n _t: total number of plants; n _s: number of sterile plants; n _f: number of fertile plants. χ ² _(p3:1): chi-square test for the ratio of 3 fertile:1 sterile; P: probability