Abstract

Cuttings of Japanese pittosporum (Pittosporum Tobira (Thunb.) Ait.) were collected in February, April, June, October and December 1987 and rooted in a mist propagation bed with 0, 1250, 2500, 5000 or 10000 mg/l (ppm) IBA in 50% ethanol under a mist of low-salt (EC ≤ 0.03 dS/m) or saline (EC = 0.96 to 1.50 dS/m) water. Regardless of collection time, IBA either did not improve or adversely affected rooting. Rooting percentages of all cuttings were acceptable with no response to water salinity, except those collected in June which had poor performance when misted with saline water. In another test, P. Toblra cuttings rooted in fine grade vermiculite and equal volumes of perlite and coarse grade vermiculite had superior performance to perlite.