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Table 4

Midday stem water potential (Ψstem, bar) and leaf assimilation rate (An, µmolm-2s-1) in closed (C) and open (A) canopy vines. Measurements were taken on well exposed basal and apical leaves for An. Each value is the average of four replicates. Different letters within a column indicate significant differences as calculated by the Tukey test (p≤0.05).

  DOY 201 DOY 215 DOY 241

  Ψstem An Ψstem An Ψstem An
C - 7.6 7.8 - 7.3 11.3 a - 5.7 5.3 a
A - 8.4 7.8 - 8.8 9.8 b - 6.3 4.5 b

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