IBA Promotes Rooting in the Hardwood Cuttings of Olive (Olea europaea L.) Cultivars

The study was carried out to propagate olive (Olea europaea L.) cultivars from hardwood cuttings with IBA (Indole butyric acid) at 2000, 4000 and 6000 ppm. IBA at 4000 ppm significantly promoted maximum sprouting (90%), highest survival (76.70%) and produced lengthy shoot (5.8 cm) for cultivar Domate and maximum number of roots 6.9 per cutting in the cultivar at 2000 ppm IBA. Root length in the cultivar was increased at 2000 ppm of IBA. The cultivar N.D. Belice was the 2nd best to give good response to various levels of growth regulator. The cuttings of the remaining cultivars showed little response to IBA.