Figure 6.
Time course of leaf disc area development of tobacco in A2D (left panels), A3D (middle panels), and RGR3D (right panels). Time courses were measured on leaf 9, middle location. A to C, Treatment NS (nutrient solution). D to F, Treatment H2O (tap water control). G to I, Treatment LG (low glyphosate concentration). J to L, Treatment HG (high glyphosate concentration). Dot traces indicate time course of areas of individual leaf discs. Solid curves show median ± se (HG, n = 9; LG, n = 9; NS, n = 8; H2O, n = 9). Dotted curves show A3D of individual leaf discs (including outliers). Dashed horizontal lines in LG and HG indicate areas at the beginning of measurement to illustrate the net effect of superimposed growth and the perceived shrinking due to decreasing water level. RGR3D was calculated from the time course of A3D (mean ± se). Shaded vertical bars in the background of each panel indicate night.