Figure 3.

Stomatal characteristics of epidermal patterning factor (EPF) family mutants following growth at 200 (white), 450 (grey) or 1000 ppm (black) atmospheric CO₂ concentration with either 30% or 70% relative soil water content. (a) Relationship between mean stomatal size and density across the CO₂ conditions (n = 3–4). (b,c) Relationship between mean leaf temperature and mean maximum stomatal conductance to water vapour at (a) 70% and (b) 30% soil water conditions (n = 3–4). Error bars represent standard error.