PHENOLOGICAL CYCLE AND DIURNAL VARIATION EFFECTS ON THE VOLATILE OIL CHARACTERISTICS OF SAGE (Salvia officinalis L.)

This study was carried out to evaluate the effects of phenological and diurnal variation on volatile oil content quality Salvia officinalis L. (Lamiaceae) cultivated in Afyonkarahisar/Turkey. The harvesting times based ontogeny were pre-flowering, flowering post-flowering stages. took place three a day, at 6:00 a.m., 2:00 8:00 p.m. results showed that highest obtained stage (2.05%). In general, best time last hours day. synthesis almost same other amount increased sunset day all studied Among identified S. compounds, oxygenated monoterpenes largest chemical group (52.8-68.6%). α-Thujone (13.0-35.8%) major compound most samples. lowest values this observed stages, respectively. main compounds camphor (7.0-20.2%), 1,8-cineole (6.9-14.1%), borneol (2.8-15.8%) veridiflorol (4.5-12.3%). climatic factors such as length, insolation, temperature plant growth affected quantity officinalis. for is Afyonkarahisar conditions. compositions varied widely different harvest (ontogeny diurnal).