SEEDLING INVIGORATION THROUGH PLANT GROWTH SUBSTANCES IN TEAK (TECTONA GRANDIS)

Abstract

Influence of plant growth substances, viz. GA, IBA, IAA at two levels as promoters of germination and seedling growth on teak was studied. Slurry treatment method was adopted and growth of seedlings monitored for six months. Observations recorded on growth attributes revealed that GA at higher concentration enhanced growth of shoot characteristics as well as root length. At the lower concentration of 50 ppm, IBA influenced below ground biomass barring root length, and IAA produced elongated internodes.