Table 1 . Pollen viability of F₆ and F₇ allohexaploids and their parent species.

Plant number	Viability (%)	No. of chromosomes		Total no. of chromosomes
		At	Aa
Col 2x	68	10	—	10
Sue 1	75	10	16	26
F6 5-1-1-1 5pa	34	17	16	33
F6 5-1-1-1 4pa	34	17	16	33
F6 5-1-6-1	44	16	16	32
F6 5-1-6-2	85	13	14	27
F7 6-1-2-2	15	21	15	36
F7 6-1-2-3	5	21	16	37
F7 6-1-2-4	62	20	16	36
F7 6-1-8-1	7	16	16	32
F7 6-1-8-3	13	21	16	37
F7 6-1-8-4	20	23	16	39
F7 6-1-9-3	20	20	16	36
F7 12-19-1-1	12	18	16	34
F7 12-19-1-2	12	17	16	33
F7 12-19-1-4	25	19	16	35
F7 12-19-1-5	15	19	15	34
F7 14-4-4-1	2	16	15	31

^a5p, five-petaled inflorescence; 4p, four-petaled inflorescence on the same plant.