Role of Plant Growth Regulators (PGRs) in In vitro seed germination of Acampe rigida (Buch.-Ham ex SW) P.F.Hunt

Acampe rigida (Buch-Ham Ex. SW) P. F. Hunt an epiphytic orchid of N. E. India, has immense floricultural appeal. It is a robust species with 60-90 cm long stem bearing beautiful aromatic flowers of pale yellow colour with transverse crimson bands. Like many other orchids of this region, this species is also considered to be endangered due to large scale denundation of forest areas. So, in order to preserve it from possible extinction, attempts are made to multiply it through in vitro culture of seeds. BAP at concentration of 2.0 mg/ L. increased the number of seeds germination.