Effects of rooting media and different IBA concentrations on air layering of Rambutan (Nephelium lappaceum L.).

A study of air layering in Rambutan (Nephelium lappaceum L.) involving two different rooting media and different concentrations of rooting hormone (IBA) showed significant variation in terms of air layering percent success, callus formation, average number of primary roots per air-layer, survival percentage after transplanting in poly-bags, days taken for bud sprouting, number of bud sprouts, number of leaves, number of branches and mortality percentage under Chettali conditions, Kodugu Dist., Karnataka, India. Coir fibre as rooting media and 2500ppm concentration of IBA as rooting hormone along with their interactions was found best among all other treatments with highest rate of air layering percent success and other related parameters.