GROWTH AND FLOWERING OF KALANCHOE-MARMORA TA BAK

Kalanchoe marmorata Bak. (Sect. Eukalanchoe) with 8-12 cm long white f lowers seems to be a long-short-day-plant, since flowering did not occ ur under continuous long-day or under continuous short-day conditions. After a change from long-day to short-day and after treatment with gi bberellic acid (GA(3)) under continuous short-day conditions, however, flowering occured to a certain extent. Problems of juvenility were di scussed. Axillary shoot growth of the usual unbranched growing plant c ould be induced by treatment with benzylamino-purine (100 ppm spray or ointment - Lanette mollis -).