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. 2016 Jun 17;7:875. doi: 10.3389/fpls.2016.00875

Figure 4.

Figure 4

Effect of varying the time constant for stomata response (αg) on daily water use efficiency (WUE) during the sunny day (B), the cloudy day (A), and different ideal sunny (B) and cloudy days (A) scenarios. Simulations were performed per second over 15 h (from 06:00 a.m. to 9:00 p.m.). The speed of stomatal aperture was varied in a set of 15 values and all climatic data were extracted from the 2 days measurement data presented in Figure 1 and ideal sunny and cloudy days scenario. The ideal sunny and cloudy days 1 to 3 corresponds to sinusoidal fluctuation frequency equal to 2 h−1, 1 h−1 and 30 min−1. All other parameter values are defined in Tables 1, 2.