While in outdoor-grown vines shoots originate from latent buds, grapev
ine shoots from microcuttings cultured in vitro are produced by the an
ticipated bud. The latter shoots show physiological and morphological
features of juvenility. This study was carried out to obtain more conf
orm in vitro grapevine shoots. Latent buds were induced to develop in
vitro. Shoots produced by latent buds had more juvenile features than
those produced by anticipated buds. New information on the control of
juvenility of grapevines in vitro is presented.