Table 2.

Lateral Root Number in Different Genotypes^a

Genotype	Mean No. of Lateral Roots per Length of Primary Root	No. Counted	Difference Relative to fca-1 from Each Experiment (%)
Ler	0.444 ± 0.007	35	21
fca-1	0.367 ± 0.005b	63
fca-6	0.360 ± 0.02b	7	−2
fca-1/FCA cosmid	0.451 ± 0.009c	37	23
fca-1/35S-γ	0.429 ± 0.009c	38	17
FRI (Sf2)	0.380 ± 0.009b	44	4
Ler	0.469 ± 0.011	21	30
fca-1	0.362 ± 0.008b	30
fca-1 vernalized	0.462 ± 0.014c	15	28
Ler	0.484 ± 0.02	19	20
fca-1	0.405 ± 0.015b	24
fca-1	0.31 ± 0.02	27
fca-1 vernalized	0.36 ± 0.02	13	16
FRI (Sf2)	0.28 ± 0.02	13	−10
co-2	0.4 ± 0.015c	22	29

^aLateral root number per unit of root length was measured in four independent experiments on seedlings grown on square vertical agar plates 12 days after germination (just before the roots reached the bottom of the plate). The growth of the roots and the production of lateral roots were somewhat variable between experiments, but the relative differences were maintained and have been expressed as percentage difference relative to fca-1 in each experiment.

^bSignificantly different from wild-type Ler control (P < 0.001).

^cSignificantly different from fca-1 (P < 0.001).

Error bars indicate ±se.