Photosynthetic and Biochemical Properties of Selected Oregano (Origanum onites) Clones


TATAR O. , SÖNMEZ Ç. , ATASOY G. D.

INTERNATIONAL JOURNAL OF AGRICULTURE AND BIOLOGY, cilt.14, ss.609-612, 2012 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 14 Konu: 4
  • Basım Tarihi: 2012
  • Dergi Adı: INTERNATIONAL JOURNAL OF AGRICULTURE AND BIOLOGY
  • Sayfa Sayıları: ss.609-612

Özet

Origanum onites L. is distributed in Western and Southern Anatolia and is one of the most economically important species. A field experiment was conducted in experimental field of Ege University Turkey to understand photosynthetic and biochemical properties of fourteen selected oregano clones. Photosynthetic rate, transpiration, stomatal conductance and water use efficiency was determined by an automatic photosynthetic measurement system. Fluorometer was used to identify quantum yield of photosystem II. Variation in photosynthetic rate and composition of the essential oil were also evaluated. Clone-789 and clone-650 had higher photosynthetic rate, stomatal conductance and water use efficiency. The highest quantum yield was found in clone-732. Essential oil content of the clones ranged between 3.0 and 6.5%. Major component of essential oil was Carvacrol in all clones, whereas Tymol in clone-661. Our results suggested that clone-789 and clone-650 had higher potential regarding to photosynthetic capacity, whereas clone-732 had higher proportion of absorbed light by cholorophyll, which for use in photochemical process of PSII. These findings may be used for breeding programs focus on high productivity and better quality in O. onites L. (c) 2012 Friends Science Publishers