Table 3.

Measurements Performed during the Plate-Based Phenotypic Analysis

First-Phase Measurements
Measurement/Query					Growth Stage Defined
Has radicle emergence been reached or passed?					Stage 0.5
Are the hypocotyl and cotyledons visible?					Stage 0.7
Have the cotyledons opened fully?					Stage 1.0
Number of rosette leaves >1 mm					Principal growth stage 1
Length of primary root ≥6 cm					Stage R6
Second-Phase Measurements
			Col-0 Data
Measurement	Unit	Growth Stage	Average	sd		CVa
Number of rosette leaves	Count	1.0b	3.3	0.5		13.7
Length of primary root	mm	1.0b	45.2	4.1		9.0
Number of secondary roots	Count	R6c	10.5	1.4		13.2
Rosette, total exposed leaf area	mm2	R6c	22.2	2.6		11.9
Rosette, perimeter	mm	R6c	42.1	5.2		12.2
Rosette, sd of radius	None	R6c	39.2	3.1		7.9
Rosette, major axis	mm	R6c	7.9	0.7		9.1
Rosette, minor axis	mm	R6c	5.9	0.6		9.5
Rosette, eccentricity	None	R6c	0.63	0.05		7.2

^a CV, coefficient of variation, calculated as (sd/days) × 100.

^b Data collection initiated at stage 1.0 and continued until the end of the experiment.

^c R6 or 14 days after sowing, whichever comes first.