Table 1.

Days past mid-véraison at which under-ripe berries were at successive °Brix and colour levels of red berry reference stages

Reference ripening stagea	Reference °Brix/ colour valueb	Days past mid-véraison (0)c
		RS	PS	GS	GH
R1-Brix	12.6 (±0.3)	0	6.5 (±1.0)	9.9 (±1.0)	13.0 (±0.8)
R2-Brix	13.9 (±0.2)	7	10.8 (±1.1)	13.2 (±1.0)	16.1 (±1.0)
R3-Brix	15.3 (±0.2)	14	15.4 (±1.4)	17.0 (±0.7)	19.1 (±0.9)
R1-Colour	3.4 (±0.1)	0	4.3 (±0.7)	8.1 (±0.8)	12.7 (±1.1)
R2-Colour	4.4 (±0.1)	7	9.9 (±0.6)	13.4 (±0.9)	17.1 (±0.9)
R3-Colour	5.1 (±0.1)	14	15.0 (±0.5)	17.8 (±0.8)	20.8 (±0.9)

^a R1, R2, and R3 are specific Brix (total soluble solids) and colour index (CI) reference stages of RS berry class at mid-véraison (R1), and 1 (R2) and 2 weeks (R3) past-mid-véraison, respectively. The same ripening stages were reached at later times by under-ripe berries. Those times were determined through regression analyses (see Supplementary Worksheet 2B at JXB online) of the weekly increment data in sugar and pigment of each berry class separately. This enabled the comparisons of the days required between fixed sugar and pigment levels across berry classes.

^b Total soluble solid content (Brix) and colour index values in RS berries at the reference stages. Following their respective rates of sugar and pigment accumulation in each of the under-ripe berry classes, the days they would take to traverse through these reference stages were calculated.

^c Days at which each under-ripe berry class would reach the RS reference Brix and colour levels (see Supplementary Worksheet 2B at JXB online). The days taken by RS reference berries that were recorded are in the first column. Data are the mean of six plants with five berries of each ripening class contributing to the value of each plant. Errors bars represent ±SEM.