New Zealand Journal of Crop and Horticultural Science abstracts

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Effect of different developing stages on some agronomical characteristics and essential oil composition of oregano (Origanum onites)

Süleyman Kizil

Department of Field Crops
Faculty of Agriculture
Dicle University
21280 Diyarbakir, Turkey
email: kizils@dicle.edu.tr

Arif İpek
Neşet Arslan
Khalid Mahmood Khawar

Department of Field Crops
Faculty of Agriculture
Ankara University
06110 Ankara, Turkey

Abstract This study reports effects of three plant development stages (pre-flowering, full flowering, and post-flowering) of oregano (Origanum onites) on plant height, fresh herbage yield, dry herbage yield, dry leaf yield, essential oil content, and essential oil yield. The results showed that the highest fresh, dry herbage, and dry leaf yield were obtained at the post-flowering stage. However, dry leaf and essential oil yield showed a variation between 4.45–5.68 t ha–1 and 119.3–190.1 litre ha–1, respectively. Essential oil content was significantly affected by plant development stages and the highest oil content (3.65%) was obtained at the full flowering stage. The major components of essential oil were determined as carvacrol (42.12–57.0%), thymol (13.21–21.88%), and linalool (8.23–20.28%).

Keywords Origanum onites; developing stage; dry leaf; essential oil yield; oil components; carvacrol

New Zealand Journal of Crop and Horticultural Science, 2008, Vol. 36: 71–76
0014–0671/08/3601–0071      © The Royal Society of New Zealand 2008
H07004; Online publication date 11 March 2008
Received 12 January 2007; accepted 28 November 2007

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