Fig. 7.

Effects of A-9-C and TEA-Cl added together or separately (1 h after starting the experiment) on the growth rate of maize coleoptile segments incubated in the presence of 10 μm IAA. IAA was added to the incubation medium at 2 h. Curves represent data obtained using the second measuring system. Inset on the right shows total elongation growth, calculated as the sum of extensions measured at 3-min intervals for 10 h. Inset on the left presents medium pH changes for maize coleoptile segments incubated in the presence of IAA. All curves represent means of at least nine independent experiments. Bars indicate ± s.e. The LSD test for growth is included in Supplementary Data Fig. S2.