ABSTRACT Clonal propagation is one of the most effective tools for improving productivity of the forestry system. The study describes the scope and development of clonal propagation technology for Pterocarpus indicus. Developing rapid and improved clonal study reveals that clonal prorogation of this species is possible through stem cuttings. The study standardized the types of cuttings and concentration of IBA on success and survival of stem cuttings in this species. The experiments which comprised of concentrations of IBA viz., 1000 ppm, 2000 ppm, 3000 ppm, 4000 ppm, 5000 ppm, 6000 ppm and control and type of cuttings viz., leafy shoot, soft wood and semi hard wood cuttings of Pterocarpus indicus. The percentage of sprouting, rooting and survival differed significantly between treated and untreated cuttings. Semi hard wood cuttings treated with 4000 ppm of IBA maximized sprouting (85.76%) and rooting (72.16%) along with increased survival (68.38%). Survival and growth of the clonal plants were found to better using with cuttings with proper concentration of IBA and also combined with suitable rooting media. However, there was significant variation in shoot length, root length of cuttings due to IBA treatments. The results suggested that it could be possible to produce clones of high yielding superior genotypes of Pterocarpus indicus on large scale through stem cutting for popularization and establishment of commercial forestry and agroforestry.

Keywords: Pterocarpus indicus, endangered tree, macro propagation, cuttings