Figure 2.

Graphical representation of the mean hypocotyl lengths at given fluence rates and BL concentrations suggest an interaction between light and hormone perception. Red and far-red light are depicted separately, as are each genotype used in the study. As expected, far-red light shows a more dramatic shortening effect on hypocotyl length than red light, and the photoreceptor null mutants phyA and phyB are largely blind to far-red and red light, respectively.