highly significantp < 0.001
While midday and afternoon theta values were highly significant ( p < 0.001), the morning value did not reach statistical significance (t = 1.85, p = 0.06).
While midday and afternoon theta values were highly significant ( p < 0.001), the morning value did not reach statistical significance (t = 1.85, p = 0.06).
The convexity parameter (theta) followed an increasing trend from morning (0.74) through midday (0.87) to late afternoon (1.004), suggesting progressively greater light saturation as the day progressed and indicating the transition from light-limited to light-saturated photosynthesis.