The Effect of Light on the Phytolization of Chlorophyllide α and the Spectral Dependence of the Process

Abstract

Abstract Seven days old dark‐grown etiolated seedlings of wheat cultivated on nutrition solution were given short light impulses of high intensity followed by a dark period, during which the phytolization of chlorophyllic α was studied. If the leaves prior to the short light impulses were given a pretreatment consisting of a light impulse followed by three hours of darkness the phytolization rate increased. Monochromatic light as pretreatment gave a response which was mainly restricted to the red region with a peak around 660 nm.