Fig. 4

Pairwise comparisons of the untreated samples versus each treatment obtained via a discriminant analysis. The outline drawings of flowers show the shape change deviations from the untreated average shape (dotted outline and open circles) for each treatment (solid black outline with grey background and solid black circles) for a Procrustes distance of +0.1. Note that these outline drawings are an interpolated form of presentation from the actual landmarks based on the thin-plate spline technique that makes it easier to visualise shape changes. This means that the relevant information is from the positions of the landmarks, not from the outline drawings