Rooting ability of Calliandra calothyrsus leafy stem cuttings in a non-mist propagator.
A study was conducted in 1994 to determine if Calliandra calothyrsus could be vegetatively propagated in a low-technology, high humidity polythene non-mist propagation environment suitable for the rural tropics. In addition, within and between provenance variation in the rooting ability of C. calothyrsus was determined. Leafy stem cuttings were propagated successfully in non-mist propagators with 100% rooting success recorded for some genotypes. The average rooting potential of the best-rooting provenance was 76% for the San Ramon provenance from Nicaragua. Cuttings harvested from stock plants grown from seed collected in Honduras were also successful with 65% rooting, whereas the least successful provenance was Suchitepeques, from Guatemala, which did not form adventitious roots. Low-tech vegetative propagation is a viable means of providing planting stock of C. calothyrsus, and the development of operational-scale propagation procedures is worthwhile. Authors' summary. KEYWORDS: TROPAG | Calliandra calothyrsus | trees | Calliandra calothyrsus | varieties | vegetative propagation | appropriate technology.