Figure 1. (A) Concentration of free IAA the stolon rip. Plants were grown for 9 weeks under non-inductive conditions, before switch to inductive short day conditions. IAA and OxIAA concentrations are in pmol per gram of fresh weight. Samples were harvested under long day conditions (LD day 0) just before switching to inductive short days and after 5, 8 and 26 d in short day conditions (SD day 5, 8 and 26 respectively). Error bars represent standard error of the mean of two replicated measurements. (B) Representation of stages of tuberisation before and after transition to inductive conditions (black section of the bar represents SD and white section represents LD). The days of growth are shown below. The inset in the top left, is a 3 × magnification of stages 2–4.