Origanum dubium Boiss is an economically important wild oregano species that is intensely collected from the natural flora of Antalya, Turkey. This herb is used mainly to produce an essential oil due to its high yield and high carvacrol content. | Turkish Journal of Agriculture and Forestry Research Article Turk J Agric For (2017) 41: 272-277 © TÜBİTAK doi: Agronomic and chemical performance of selected Origanum dubium Boiss. clones for industrial use 1, 2 1 3 Kenan TURGUT *, Yaşar ÖZYİĞİT , Begüm TÜTÜNCÜ , Esra UÇAR SÖZMEN Department of Field Crops, Faculty of Agriculture, Akdeniz University, Antalya, Turkey 2 Department of Horticulture, Korkuteli Vocational School, Akdeniz University, Antalya, Turkey 3 Department of Medicinal and Aromatic Plants, Sivas Vocational School, Cumhuriyet University, Sivas, Turkey 1 Received: Accepted/Published Online: Final Version: Abstract: Origanum dubium Boiss. is an economically important wild oregano species that is intensely collected from the natural flora of Antalya, Turkey. This herb is used mainly to produce an essential oil due to its high yield and high carvacrol content. The aim of this study was to improve the biomass yield and essential oil and carvacrol content of O. dubium for industrial use. In preliminary studies, a basic population was established using seeds collected from wild plants and then trials of A and B clones were run. Dry biomass yield per A clone plant and essential oil content varied at – g and 5%–14%, respectively. Carvacrol was the main constituent in all samples and varied from to . Dry biomass yield per B clone plant was – g, dry leaf yield per plant was – g, essential oil content was 6%–9%, and carvacrol rate was –. After evaluating the B clones, 10 clones were selected and they were planted in a plot with a randomized block design and three replications in Antalya in 2014. In this trial, clone 7 produced the highest biomass yields per plot ( g fresh and g dry) and the highest fresh ( g) and dry ( g) leaf yields per plot. Essential oil content varied .
