Table III.

The effect of Suc on penetrance of the tnp mutant phenotype

Seedlings were grown on 1/2× MS medium or medium supplemented with the indicated concentration of Suc and/or 10 nm 2,4-D, and the number of seedlings with a wild-type (TNP) or tnp mutant phenotype (tnp) was counted 7 d postgermination.

Medium	TNP	tnp	% tnp
0% Suc	184	0	0
0% Suc + 10 nm 2,4-D	138	3	2
1% Suc	70	107	60.5
1% Suc + 10 nm 2,4-D	21	120	85.1
2% Suc	53	100	65.4
2% Suc + 10 nm 2,4-D	13	155	92.3
3% Suc	64	90	58.4
3% Suc + 10 nm 2,4-D	23	122	84.1
4% Suc	78	86	52.4
4% Suc + 10 nm 2,4-D	46	102	68.9
5% Suc	79	93	54.1
5% Suc + 10 nm 2,4-D	28	131	82.4
6% Suc	87	65	42.8
6% Suc + 10 nm 2,4-D	50	97	66.0