Table 1.

Interaction of light, auxin (NAA), an inhibitor of polar auxin transport (NPA) and an antiauxin (PCIB) on mesocotyl elongation in 7-d-old 307 and 3394 seedlings developed in conditions in vitro

Hybrid	307			3394
Effector	+ NAA	+ NPA	+ PCIB	+ NAA	+ NPA	+ PCIB
Conc.	50	100	50	50	100	50
Dark	48	70	35	28	12	13
R	0	23	8	13	8	15
FR	0	26	0	0	11	16

For each genotype and condition at least six seedlings were measured in each of 3 to 16 independent experiments and mean values were calculated. Values shown in the table indicate percent of inhibition of mesocotyl growth calculated from the mean values.