Variability in essential oil composition of wild populations of Labiatae species collected in Spain

摘要: Abstract Essential oils of 11 populations Thymus mastichina (L.) L., 10 Salvia lavandulifolia Vahl and 12 Lavandula latifolia Medik., collected in full bloom during 3 years (2009–2011) were analyzed by gas chromatography (GC)-flame ionization detector (FID) mass spectrometry (MS) to study the variability among influence year harvest essential oil composition. One factor ANOVA for population origin harvest, Principal Component Analyses (PCA) using main compounds as set observations carried out each species. For T. all samples 1,8-cineol chemotype (58.52–68.82%), however linalool content showed a great range variation (1.16–10.24%). 1,8-Cineol (6.21–33.69%), camphor (2.85–22.44%) β-pinene (5.11–19.85%) S. (30.57–54.09%) (15.82–45.94%) L. oils. Populations from different appeared mainly grouped PCA figures while no clustering. was least environmentally influenced species, showing differences populations. also had small campaigns higher within Conversely, percentage volatile composition depending on but genotypic observed. In conclusion, is largely dependent studied having genetic factors greater than environmental factors. However, are influencing must be taken into account.