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Table 3 The effect of nitrogen addition on sugar level (g L−1), Total Acidity (g tartrate eq. L−1), pH and malic acid content (g L−1) in grape musts prior to harvest in 2013 and 2014

From: Vine nitrogen status and volatile thiols and their precursors from plot to transcriptome level

  Bordeaux Sancerre
Sugar Total Acidity pH Malic acid Sugar Total Acidity pH Malic acid
2013
 Control 193 a 10.9 a 2.99 a 4.7 a 205 a 7.9 a 3.17 a 3.8 a
 Soil N100 174 a 11.7 a 3.01 a 6.0 a 190 b 7.6 a 3.20 a 3.8 a
2014
 Control 204 a 10.8 a 3.08 a 5.1 a 205 a 9.0 a 3.05 a 4.6 a
 Soil N100 198 b 11.4 b 3.10 a 5.8 b 204 a 9.4 a 3.07 a 5.1 b
  1. 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)