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Axial relative elemental growth rate (REGR) plotted against distance from ligule (a) or developmental time (b; time zero is 1.75 mm from ligule) for abaxial cells of wild type (▵), M489 (□), and M489 + GA3 (○). Arrows in a summarize the orientations of the CMTs (r, random; t, transverse) at the corresponding positions throughout the EZ of the dwarf and tall plants.
