Multiplication of bougainvillea cv. Torch Glory through shoot tip cutting under mist chamber

The experiment was conducted under mist chamber at Horticulture Research Centre, HNB Garhwal University, Chauras Campus Srinagar (Garhwal), Uttarakhand. The different length stem cuttings (20, 35 and 50 cm) of Bougain vil lea cv. Torch Glory treated with IBA solutions at 3000, 4000 and 5000 mg L-1 by quick dip method were planted carefully in the root trainers. Among all the treatments, maximum number of sprouted cuttings (90.0%) and maximum number of sprouts per cutting (30.22) were observed under C1L2 (35 cm long cuttings treated with 3000 ppm IBA) treatment, maximum length of sprout per cutting (3.25 cm) and maximum height of plant (63.86 cm) was found under C1L3 (50 cm long cuttings treated with 3000 ppm IBA), maximum diameter of sprouts per cutting (0.74 cm) was recorded under C3L1(35 cm long cuttings treated with 5000 ppm IBA). Number of leaves on new growth (7.48) was found maximum under C3L3 (50 cm long cutting treated with 5000 ppm IBA), length of longest root (9.90 cm) was maximum under C2L3 treatment (50 cm long cutting treated with 4000 ppm IBA), profuse callus formation (77.77%) was found in C1L1 treatment (50 cm long cutting treated with 3000 ppm IBA) and secondary rooting (77.77%) was found better under C1L2 and C1L3 (35cm and 50 cm long cuttings treated with 3000 ppm IBA) treatments.