Schenk en Hildebrandt medium has been developed for growth of both monocotyle and dicotyle cell suspensions. A high level of auxin-type growth regulators, 2,4-D (0.5 mg/l) and 4-CPA (2.0 mg/l), g-enerally favoured monocoty-ledonous cell cul-tu-r-es, while low levels of cytokin, kinetin (0.1 mg/l), were essential for most dicotyledonous cell cultures.