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Fraction of leaves that are sunlit at different layers by the 2D model (dashed in the left y-axis) and ranks by the 3D model (dotted in the right y-axis) over canopy at 6:00 (A), 12:00 (B), and 17:00 (C) for ZD958 (blue) and for XY335 (red) at the density of 7.5 plants m–2 on an overcast day. Error bars indicate the SE.
