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

 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

 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