R. PAUL1 and Ch. ADITI2
1 School of Biotechnology, Rajiv Gandhi Technological University, Bhopal, India
2 Department of Horticulture, Institute of Agricultural Sciences, University of Calcutta, Kolkata, India
PAUL, R. and Ch. ADITI, 2009. IBA and NAA of 1000 ppm Induce more improved rooting characters in air-layers of waterapple (Syzygium javanica L.). Bulg. J. Agric. Sci., 15: 123-128
Waterapple (Syzygium javanica L.) is an important minor fruit. It is well known to everybody in south-east Asia for its nutritional and medicinal value. The major reasons of its poor productivity are non-availability of genuine planting materials of superior cultivars and poor orchard management. Air-layering is a reliable and easy means of propagation, especially in species which are difficult-to-root on cuttings. Many research workers have reported application of root promoting substances during the making of layering helps to get profuse roots within a short time. Synthetic Auxins like IBA and NAA are commonly used to promote root development in asexual propagation. The present investigation was taken up to find out the most efficient concentrations of hormones (IBA and NAA) which enhance rooting of layering and improve the rooting characters like root length, diameter, branching, hardness and the relation of rooting with sprouting.
Key words: waterapple, air-layering, auxins, rooting characters, survival percentage