Fig. 3
Relationships obtained between the canopy conductance (gc) estimated from aerial thermal imagery using the leaf energy balance model (Jones [15]) and stomatal conductance (gs) measured in leaves (a, n = 18) and stem sap flow fluxes (b, n = 10) (p < 0.05) at noon 29th August 2012. Green, red and black dots correspond to watered (W), cover-crop (C) and drought (D) irrigation treatments