Effects of exogenous salicylic acid on seed germination and seedling growth of Pogostemon cablin under salt stress Analysis on defense-related enzyme isozymes in Pogostemon cablin induced by Ralstonia solanacearum Cloning and sequence analysis of phytoene desaturase gene in Pogostmen cablin Induction and Identification of Homologous Octoploid in Pogostemon cablin (Blanco) Benth. Isolation of pathogenic Ralstonia solanacearum from Pogostemon cablin and determination of its pathogenicity Analysis on defense-related enzyme isozymes in Pogostemon cablin induced by Ralstonia solanacearum Analysis of volatile oil of Pogostemon cablin Studies on mature structures and distribution of active constituent of Pogostemon cablin