Micropropagation of eleven Rosa hybrida L. cultivars is described.
Quoirin-Lepoivre's salt solution is employed and different growth regulators are tested.
AIB at 0.1mgr/1 reduces proliferation.
BAP is needed at least at 1 mgr/1 for axillary branching and GA3 enhances it.
Preliminar results on rooting shows different hormonal requirements in three cultivars.