Efficacy of IAA concentration and cutting length on rooting of stem cuttings in Spondias pinnata Linn.h

Abstract

An experiment was laid out in factorial randomized block design with 12 treatments and 3 replications which included three levels (10, 15 and 20 cm) of cutting length and four levels of IAA treatment (0 control, 500, 1000 and 1500 ppm). Each cutting was treated with different concentrations of IAA for 15 sec. Investigation revealed that 15 cm length of cuttings treated with 1500 ppm IAA gave the best results in terms of earliest bud (13.27 DAP) and leaf (16.32 DAP) initiation, highest success (66.67%), shoot length (34.89 cm), root length (13.49 cm), collar diameter (20.50 mm), root number (9.53), root diameter (6.91 mm), fresh shoot weight (45.47g), fresh leaf weight (14.07 g), dry shoot weight (21.15 g), dry root weight (2.67 g) and total biomass (29.80 g/plant).