Essential oils of Cymbopogon citratus (DC.) Stapf grown in three different locations in South India were analysed by GC and GC-MS. The main constituents of the oils from Bangalore and Puttur were identified as β-myrcene, neral, geranial and geraniol. The oil from Nadugani was found to contain the major constituents' neral, geranial, geraniol and geranyl acetate. The present study revealed the presence of six oxygenated monoterpenes and sesquiterpenes which were hitherto not reported in the oil of C. citratus.

An in vitro protocol has been developed for rapid multiplication of mature flowering plant of E. foetidum. The nodal and scape explants derived from 10-12 day old inflorescence explant were cultured on Murashige and Skoog's (MS) medium supplementing with different concentrations and combinations of BAP and Kinetin. Both the explant types produced direct adventitious shoots varying in their number. Each adventitious shoot possessed a rosette of leaves with apical or axillary inflorescence or both inflorescence with well-developed rooting system. The entire process of adventitious shoot formation and mature plantlet development occurred within 3-4 weeks of culture. The well-organized shoots were individually excised and potted in the soil. Up to 95% of the plants survived under field conditions.