EFFECTS OF CUTTING TIMES AND DOSES OF SOME AUXINS ON ROOTING OF THE HAIRY BROOM CUTTINGS [Chamaecytisus hirsutus (L.) LINK]

Abstract

In addition to developing ornamental plants, the world has focused on determining and promoting new genera and species that are not being produced. Chamaecytisus hirsutus is a deciduous shrub like this with high ornamental potential. The aim of this research was to determine the effects of different cutting excision times and different dose applications of some auxins on the rooting of Chamaecytisus hirsutus which is found naturally in the flora of the Mediterranean climate zone. Cuttings were taken in October, November, February, March, and April and were treated with 0.1%, 0.2%, 0.3%, 0.4% IBA or NAA solutions for 5 seconds. The results showed that the application of 0.1% (8.00), 0.2% (9.06), 0.3% (7.56), and 0.4% (8.39) NAA and 0.3% (6.89) IBA doses in April gave the best rooting rate. For the propagation of Chamaecytisus hirsutus, we recommend treating the cuttings with 0.1% NAA concentration to produce large amounts of planting materials economically for using less auxin levels.