Auxins Treatment of Hardwood Cuttings of Bougainvillea for Inducing Rooting

In present studies, auxins were used to allow rooting in hard to root Bougainvillea varieties viz. Shubra, Lady Mary Bearing and Zakiriana. Hardwood cuttings of these varieties were treated with different auxins concentrations and combination with dipping them for a long duration (for 12 hours) with lower concentrations and then planted in polybags containing garden soil. The cuttings treated showed that NAA+IBA (100+100 ppm) resulted in maximum shoot emergence (40.00%) among all the treatments. The treatment with IBA 500 ppm resulted in maximum mean number of shoots (1.86), mean shoot length (7.11 cm), number of branches (1.84), number of roots (3.07). The maximum mean per cent establishment (35.56%) of plants was in combination treatment with NAA+IBA (100+50) ppm. Among all the three varieties, Zakiriana recorded maximum shoot emergence , number of shoot, ae shoot length number of leaves , number of branches , number of roots , length of roots and establishment of plants . This indicated that higher concentrations upto 500 ppm are more beneficial along with higher concentration combinations i.e. NAA+ IBA(100+100) ppm. IBAshowed better results than NAA.