In our earlier studies, we reported germplasm conservation of patchouli by encapsulating nodal segments in calcium-alginate beads (Kumara Swamy et al.2009), in vitro multiplication of patchouli through direct organogenesis (Kumara Swamy et al. 2010a) and effect of different carbon sources on in vitro morphogenetic response of patchouli (Kumara Swamy et al. 2010b).