Appendix A. The reflectance spectra of black elder fruits, of both pedicel phenotypes, and of the artificial colors used in the field experiment.
FIG. A1. Reflectance spectra of black elder fruits, natural pedicel color variation and artificial pedicel coloration. (A) The standard deviation of green pedicel color is indicated by the cyan area, the reflectance spectra of artificial pedicel coloration by a black line and mean fruit reflectance spectra by the flat line with standard error bars. (B) The standard deviation of red pedicel color is indicated by the red area and the reflectance spectra of artificial pedicel coloration by a black line. |