effect of gibberllic acid and salicylic acid on secondary metabolites in leaf of curcuma longa l.

background & aim: turmeric, scientifically named (curcuma longa l.), a member of ginger (zingiberaceae) family, is a perennial plant, with pharmaceutical properties and with a rhizome. this plant has many medicinal characteristics including anti-cancer, anti-bacteria and anti-hepatitis properties. experimental: to study the effects of gibberellic acid and salicylic acid on leaf, the rhizome was obtained from thailand and was cultured for two years in the greenhouses of khorasgan university (isfahan). before culture, the rhizome was soaking in 150 ppm of gibberellic acid for four hour and 400 ppm of salicylic acid for one hour. the rhizomes were then planted in three blocks in the model of randomized complete blocks. the extract was taken by soxhlet afterwards. detection of the substances was done by gc/ms.    results & discussion: metabolic analysis on the plant showed that most of the metabolites on the leaf include camphor, pinene, beta- ocimene  and 1,8 cineole. consequence of using gibberllic acid is increasing the amount of camphor, 1,8 cineole, camphene, α-pinene and new terpen components such as vitamin e, α-thujone and limonene in leaves of this plant, also amount of some metabolites such as camphor, 1,8 cineole, camphene increased by using of salicylic acid. recommended applications/industries: considering the medicinal specifications of curcuma,in metabolic productionthe amount of some secnedary metabolits can be increased by growth regulators. because of having some important metabolites curcuma is one of the most important medicinal plants in our traditional and modern medicin.increasing in amount of seconedary metabolites is the result of using gibbrllic acid and salicylic acid that can make a variety in both number and amount of metabolites.