Guidelines for the preparation of table grapes in SA for export 2025/2026_ND

TABLE 2. Extrapolation of the final berry diameter from the present berry diameter. The percentage by which the berry diameter can increase until harvest is given in brackets. Current size (mm) 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28

Stage when measured

Expected berry diameter at harvest

Before véraison (+ 30%)

15.6 16.9 18.2 19.5 20.8 22.1 23.4 24.7 26.0 27.3 28.6 29.9 31.2 32.5 33.8 35.1 36.4

5% véraison (+ 25%)

15.0 16.3 17.5 18.8 20.0 21.3 22.5 23.8 25.0 26.3 27.5 28.8 30.0 31.3 32.5 33.8 35.0

10% véraison (+ 20%)

14.4 15.6 16.8 18.0 19.2 20.4 21.6 22.8 24.0 25.2 26.4 27.6 28.8 30.0 31.2 32.4 33.6

20% véraison (+ 15%)

13.8 15.0 16.1 17.3 18.4 19.6 20.7 21.9 23.0 24.2 25.3 26.5 27.6 28.8 29.9 31.1 32.2

50% véraison (+ 10%)

13.2 14.3 15.4 16.5 17.6 18.7 19.8 20.9 22.0 23.1 24.2 25.3 26.4 27.5 28.6 29.7 30.8

80% véraison (+ 5%)

12.6 13.7 14.7 15.8 16.8 17.9 18.9 20.0 21.0 22.1 23.1 24.2 25.2 26.3 27.3 28.4 29.4