Fig. 3
Physiological leaf traits. (a) Net CO2 assimilation (An), (b) stomatal conductance to water (gs) and predawn water potential (Ψpredawn) through years (2020, 2021 and 2022) and drought conditions (natural drought (ND) in light gray and amplified drought (AD) in dark gray). Differences are tested with a two-way ANOVA. Since interaction between year and drought was not significant, significant differences across years and drought conditions are noted on separate graphs. Significant differences are denoted using letters (a > b > c) for the years and asterisks for the drought condition: (*): 0.05 < P < 0.1. Ns is for not significant results. The horizontal black lines inside the boxes are the medians and the horizontal red dashed lines are the means (n = 4–7 trees).
