Table 1.

Numbers of diploid and triploid F₁ plants that segregated for lacecap and mophead inflorescences

Putative ploidy	Lacecap	Mophead	Intermediate	Non-flowering	In total
Diploid	43	36	0	24	103 (24.4%)
Triploid	234	37	3	43	317 (75.1%)
>  54 chromosomes	2	0	0	0	2 (0.5%)
In total	279	73	3	67	422

Plants with 2C DNA contents between 4.1 and 4.5 pg were classified as diploid, between 6.4 and 6.7 pg as triploid. A 2C DNA content of 7.1 and 8.5 pg indicates more than 54 chromosomes