Proserpinaca: Photoperiodic and Chemical Differentiation of Leaf Development and Flowering

Abstract

Proserpiniaca palustris L. produced juvenile leaves on 8-hour photoperiods, adult leaves on 12-hour photoperiods, and adult leaves and flowers on 14-hotur photoperiods. Treatment of pliants growing on 8- and 14-houir photoperiods with gibberellic acid caulsed stem elongation and inhibited flowering. The treated plants on 8-hour photoperiods produced adult-like leaves. Originally published Plant Physiology, Vol. 42, No. 5, May 1967