TY - BOOK AU - Carr Denis J. TI - Plant growth substances 1970: : proceedings of the 7th international conference on plant growth substances held in Canberra,Austalia december 7-11,1970 SN - 03-540-05850-8 AV - QK731.P56 PY - 1972/// CY - New York PB - Springer-Verlag Berlin Heidelberg KW - Plant growth promoting sustances N1 - Includes index ER -