Cell wall elasticity ‘ε’ and osmotic potential at full turgor (˘100) in relation to relative water content at turgor loss point (RWCTLP) and apoplastic water content (AWSD%) in leaves of GA3 treated (T-SB) and control (C-SB) ‘Sauvignon Blanc’. Correlation analysis of scatter diagrams shows significant relationships at or above: r0.05 = 0.57 (R2 = 0.32), d.f. = 10. The GA treatment decreased the capacity of the elastic water content regulation and altered the ‘ε’ range. GA did not increase cell wall rigidity, but only affected the significant linear correlation between ε and RWCTLC. Leaves of treated ‘Sauvignon Blanc’ lost their turgor by lower RWC with decreasing elasticity modulus compared to the controls. The treatment resulted in a significant correlation between P100–AWSD%, significant ˘100–AWSD% correlation indicates that the treatment affects the change of osmotic potential with decreasing AWSD% values.