Effect of length of cutting and concentration of IBA on rooting in shoot tip cutting of sawani (Lagerstroemia indica L.) under mist condition

The experiment was conducted under mist chamber at Horticulture Research Centre, HNB Garhwal University, Chauras Campus Srinagar (Garhwal). The different length stem cuttings (20, 35 and 50 cm) of Lagerstroemia indica L. were treated with IBA solutions at 500, 1000 and 1500 ppm by quick dip method. Treated cuttings were planted carefully in the root trainers. Among all the treatments, the maximum number of sprouted cuttings (10.00) was found under 20 cm long cutting treated with 1000 ppm and 1500 ppm IBA and 35 cm long cutting treated with 1500 ppm, respectively, maximum height of plant (67.33 cm) was found in 50 cm long cutting treated with1500 ppm IBA, the highest number of sprouts per cutting (14.00) was found under 50 cm long cutting treated with 1500 ppm IBA. The maximum length of sprout(28.33 cm) was found in 50 cm long cutting treated with 1500 ppm IBA, maximum average diameter of sprout (3.10 cm) was found in 50 cm long cutting treated with 1500 ppm IBA,maximum number of leaves on new growth (106.00) and maximum number of primary roots (36.66) was found in 50 cm long cutting treated with 1500 ppm IBA, maximum average length of longest root (12.50 cm) was found under 20 cm long cutting treated with 500 ppm IBA and maximum average diameter of longest root (1.53 cm) was found in 35 cm long cutting treated with 1500 ppm IBA.