Means and standard errors (n = 4) for grape chemistry data at harvest of biodynamic (BD) and organic plots in 2000, 2001, 2002, and 2003.
| Winegrape | 20 Sept 2000 | 22 Sept 2001 | 7 Oct 2002 | 15 Oct 2003 | ||||
|---|---|---|---|---|---|---|---|---|
| property | BD | Organic | BD | Organic | BD | Organic | BD | Organic |
| *Differences between means designated * are significant at p < 0.05 within each year. | ||||||||
| †Differences between means designated † are notably different at p < 0.1 within each year. | ||||||||
| Brix | 24.00 ± 0.14 | 24.15 ± 0.10 | 24.87 ± 0.13 | 25.33 ± 0.33 | 26.23 ± 0.08 | 25.80 ± 0.21 | 25.88* ± 0.09 | 25.55 ± 0.17 |
| Total phenols (mg/kg) | 2395 ± 88 | 2372 ± 46 | 3371 ± 60 | 3206 ± 160 | 2728 ± 27 | 2796 ± 61 | 3529† ± 37 | 3440 ± 35 |
| Total anthocyanins (mg/kg) | 1117 ± 91 | 1017 ± 29 | 995 ± 4.0 | 983 ± 25 | 1108 ± 18 | 1092 ± 10 | 1337† ± 14 | 1272 ± 13 |
| Free anthocyanins (mg/kg) | 846 ± 25 | 870 ± 16 | 1037 ± 139 | 933 ± 119 | 903 ± 17 | 862 ± 19 | 1049 ± 16 | 1020 ± 20 |