Table 1. Statistical analysis of the proportion of plants without tassels in F₁ progeny from an allelism test at five different sowing dates in Beijing during summer.

Statistical analysis of the percentage data between two samples was performed by χ² test. The same letters indicate no significant difference (asymptotic significance [2-sided] > 0.05), and different letters indicate significant differences (asymptotic significance [2-sided] < 0.05).

Sowing Date	Genotype	Total No. of Plants	No. of Plants with Tassels	No. of Plants without Tassels	Proportion of Plants without Tassels	α = 0.05
April 28, 2017	Tvt1/tvt1-R	21	21	0
	tvt1-m1/tvt1-R	22	6	16	72.73%	a
May 9, 2017	Tvt1/tvt1-R	25	25	0
	tvt1-m1/tvt1-R	21	13	8	38.10%	b
May 4, 2018	Tvt1/tvt1-R	20	20	0
	tvt1-m1/tvt1-R	32	30	2	6.25%	c
May 10, 2018	Tvt1/tvt1-R	27	27	0
	tvt1-m1/tvt1-R	29	22	7	24.14%	bc
May 25, 2018	Tvt1/tvt1-R	34	34	0
	tvt1-m1/tvt1-R	32	14	18	56.25%	ab