VEGETATIVE PROPAGATION IN LINARIA VULGARIS

Abstract

Vegetative propagation in Linaria vulgaris is obtained by the development of numerous adventitious buds on its roots. Each bud originates exogenously on the parent root, and it is always associated with a lateral root which arises in the pericycle opposite a protoxylem point. Buds capable of vegetative propagation are not found on either the hypocotyl or the stem. This appears to be correlated with the absence in roots of the typical open type of lenticels and of any significant accumulation of starch. Soil disturbance seems to have a deleterious effect on the production of buds on roots.