This collection of papers is a separate edition of “Wissenschaftliche Zeitschrift der Universitat Rostock, mathematisch-naturwissenschaftliche Reihe 16, 395-716 (1967). It contains the papers read at the International Meeting at Rostock/Kuhlungsborn 1966 on “Growth Regulation in Plants”. The larger papers (the lectures) have summaries in the english, russian, french and german languages, the smaller ones (the reports) have only references. Both groups of papers are wellillustrated with graphs and photographs. Questions and comments of the audience have not been inserted.