Figure 5. Stomatal conductance (g_s) as a function of the Normalized Difference Vegetation Index (NDVI) throughout the experiment.

The diamonds represent values of the youngest, fully-matured leaves of both treatments from all time points, and were used to create a linear regression. The filled square and circle are the 29^th day's mean values of leaves from the whole control and water deficit canopies, respectively. The unfilled square and circle are the 29^th day's mean values from only the representative portion of the control and water deficit canopies (Table 2), respectively.