Proserpinaca: photoperiodic and chemical differentiation of leaf development and flowering.
Proserpinaca palustris L. produced juvenile leaves on 8-hour photoperiods, adult leaves on 12-hour photoperiods, and adult leaves and flowers on 14-hour photoperiods. Treatment of plants growing on 8- and 14-hour photoperiods with gibberellic acid caused stem elongation and inhibited flowering. The treated plants on 8-hour photoperiods produced adult-like leaves.
Davis
G J
GJ
Department of Biology, East Carolina College, Greenville, North Carolina 27834.