Table 1.

The feminization of na1 mutant tassels is influenced by the genetic background

Inbred	F2 families	WT height plants	na1-like dwarfs	P	ts
					WT height plants	na1-like dwarfs
B73	4	236	62	0.09	0	34
A188	4	167	49	0.43	0	35
A619	4	174	50	0.35	0	45
Mo20W	5	230	73	0.71	0	4

A ts phenotype was recorded if more than five florets of a tassel were feminized. Plants were counted as dwarfs if they resembled the na1-1 architecture. Nondirectional P values shown were calculated with a Chi-square test of independence for a 3:1 segregation of tall and dwarf plants, respectively.