Fig. 3.

Effect of anthocyanin on light absorption by autumn P. quinquefolia leaves with low Chl (<1 nmol cm⁻²). Representative absorptance plots of leaves with anthocyanin content (nmol cm⁻²): 1–0.9, 2–12.9, 3–26.9, 4–38.9, and 5–53.1. Insert: Relationships between absorptance (curve 1, left scale), attenuance (curve 2, right scale) at 550 nm versus anthocyanin content.