Comparison of Essential Oils Composition leaf of Satureja bachtiarica Bunge. in Field and Provenance

Satureja bachtiarica Bunge. from the Lamiaceae family is an endemic plant that is widely distributed in southwestern Iran. In this study, The aerial parts of six wild populations of S. bachtiarica. were collected from various natural habitats, from Fars province and the plants obtained by dividing were planted in October. The experimental design was performed as a factorial in the form of randomized complete randomized blocks. Their essential oils (Eos) were analyzed by GC-FID and GC-MS. EO yields were from 1.1 to 2.4 % (w/w) based on dried material. The major constituents of the EOs were thymol (10.9–49.8 %), carvacrol (1.1–49.7 %), p-cymene (18.0–32.8 %), in provenance and thymol (11.2–51.4 %), carvacrol (0.5–47.8 %), p-cymene (18.8–35.4 %), γ-terpinene (5.7–8.4 %), linalool (3.8-6.1 %) in field condition. The EOs from S. bachtiarica were rich in monoterpenoids, especially oxygenated phenolic monoterpenes. Among six populations, the EOs from the Kohanjan and Abadeh-Didegan populations had the highest thymol and carvacrol amount (49.8 and 49.7 %), respectively. In total, two chemotypes, including thymol and carvacrol were determined for S. bachtiarica. The ecotypes with high thymol such as kohenjan and Mok-firouzabad have low carvacrol.