Fig. 2
a) Solutes contribution (calculated as percentage) to the osmotic potential of leaves under well-watered (WW) and water deficit (WD) conditions after 8, 18 and 53 days of irrigation treatments imposition. b) The osmotic potential at full turgor (π100) of WW and WD treated vines as derived from pressure-volume curve analysis after 11, 26 and 47 days after irrigation treatments imposition. Asterisks indicate significant differences between treatments according to student’s t-test (*P < 0.05, **P ≤ 0.01, ***P < 0.001)