Study of dry matter yield and essential oil percent in three species of Saturja (S.rechingeri, S.khuzestanica and S.mutica) in khorramabad climatic conditions

Background: In order to study of dry matter yield and essential oil efficiency in8 accession of three species Saturja in agricultural research station of Khorramabad, the experiment was carried out during 2010. Materials and Methods:  Seeds of the accession were sown in pots and transferred to field in 14-16 leaves stage seedling. The spaced plants were cultivated in randomized complete blocks with three replications. For measurement of essential oil efficiency, in the flowering stage, the foliages were harvested and dried. The essential oil was extracted by vapor method distillation. The essential oil production was calculated by dry matter yield x oil%. The data were collected and analyzed for yield and morphological traits. The means of treatments were compared by DMRT method. Results: The results showed significant that differences between species and accession within species for all of the traits except plant surviving rate (P