Table 2.
Nitrogen effect on berry weight (in gberry−1), sugars (glucose and fructose) and malic acid contents (in mg g−1 of fresh material) measured just prior to harvest
| Bordeaux | Sancerre | |||||||
|---|---|---|---|---|---|---|---|---|
| Berry weight | Glucose | Fructose | Malic acid | Berry weight | Glucose | Fructose | Malic acid | |
| 2013 | ||||||||
| Control | 1.62 a | 112.8 a | 111.1 a | 4.3 a | 1.49 a | 100.6 a | 96.4 a | 3.1 a |
| Soil N100 | 1.79 b | 98.4 b | 97.2 b | 5.1 b | 1.59 a | 106.4 a | 105.4 a | 3.9 b |
| 2014 | ||||||||
| Control | 2.26 a | 82.9 a | 81.1 a | 3.4 a | 1.89 a | 82.2 a | 76.6 a | 4.2 a |
| Soil N100 | 2.18 a | 79.1 a | 77.5 a | 4.4 b | 1.96 a | 83.9 a | 78.9 a | 4.6 b |
Values are means of four replicates. In case of significant differences between the two treatments, different letters within the same parameter indicate significant differences. Statistical significance was determined by Student’s t test (p value ≤ 0.05)