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Temporal response of gs, A, and Wi to a step increase in light intensity (from 100 to 1,000 µmol m−2 s−1), at different times of the day. Gas exchange parameters (gs, A; A, B; and Wi, C) were recorded at 20-s intervals, leaf temperature maintained at 25°C, and leaf VPD at 1 ± 0.2 kPa. Plants grown under the three high-light treatments: FLH (red); SNH (green); SQH (blue). Error ribbons represent mean ± se. n = 5–6.
