00399naa a2200121 a 450000100080000000500110000800800410001910000170006024500700007726000090014770000360015677300850019214245462003-06-02       1994    bl ---       0--  u    #d1 aARNOLD, M. A  aCoper compouds influence in vitro rooting of birch microcuttings.  c19941 aLINEBERGER, R. D. STRUVE, D. K.  tJournal of the American Society for Horticultural Sciencegv. 119, n.1, 74 - 79.