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Ardıç (Juniperus excelsa) meyvesinden ve Yayla Kekiği (Origanum minutiflorum) yapraklarından elde edilen uçucu yağların kimyasal bileşimleri ve Karaçam (Pinus nigra subsp. pallasiana^ tohumunun çimlenmesi üzerine allelopatik etkileri

Chemical compounds of volatile oil obtained from fruit of Crimean Juniper (Juniperus excelsa) and leaves of Turkish plateau oregano (Origanum minutiflorum) and allelopathic effects on germination of Anatolian Black Pine (Pinus nigra subsp. pallasiana)

Journal Name:

  • Biyolojij Çeşitlilik ve Koruma

Publication Year:

  • 2008

Key Words:

Keywords (Original Language):

Author NameUniversity of AuthorFaculty of Author
Abstract (2. Language): 
Allelopathy is the effect of chemicals released by one plant species on growth and establishment of nearby plant species. Studies on allelopathy aren't satisfactory in Turkey. There are few studies about allelopathy in the forestry although there have been some studies on agriculture. In this study, chemical compounds of volatile oil achieved from fruit of Crimean juniper (Juniperus excelsa Bieb.) and leaves of Turkish plateau oregano an endemic species for sütçüler district (Origanum minutiflorum O. Schwarz et. P.H. Davis) with water distillation determined by GC/MS. Chemical effects of this volatile oil on the germination of Anatolian Black pine were determined by flowerpot tests in the laboratory. As GS/MS analysis, it was fixed that main compounds of thyme oil were a-Pinene (1,9%), a- Terpinene (0,1%), y- Terpinene (6,2%), Thymol (4,0%), p-cymene (2,1%), Carvacrol (83,9%), and also main compounds of juniper oil were a-Pinene (89,73%), P-Pinene (2,01%), Myrcene (2,98%), Limonene (0,98%), Terpinene (0,72%), Terpineolene (0,91%), Germacrene-D (0,61%), Cedrol (1,43%). Also, It occurs that in parallel concentration of volatile oil both juniper and thyme reduce germination of Anatolian Black pine.
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Abstract (Original Language): 
Allelopati, bir bitki türü tarafından salgılanan kimyasalların komşu bitkinin gelişmesi ve yerleşmesine olan etkisidir. Ülkemizde allepoti ile ilgili yürütülen çalişmalar yeterli düzeyde değildir. Azda olsa tarim alaninda çalişmalar olmasına rağmen, ormancılık alanında allelopati ile ilgili çalışmalar yok denecek kadar azdır. Bu çalışmada ardıç (Juniperus excelsa Bieb.) meyvelerinden ve sütçüler yöresi için endemik bir tür olan Yayla kekiği (Origanum minutiflorum O. Schwarz et. P.H. Davis) yapraklarından su distilasyonu ile elde edilen uçucu yağların, GC/MS ile kimyasal bileşimleri belirlenmiştir. Bu uçucu yağların laboratuar koşullarında saksı deneyleri ile karaçam tohumlarının çimlenmesi üzerine etkileri saptanmıştır. GC/MS analizlerine göre; kekik uçucu yağının ana bileşenleri; a-pinen (%1,9), a-terpinen (%0,1), y- terpinen (%6,2), timol (%4,0), p-simen (%2,1), karvakrol (%83,9), ardıç uçucu yaının ana bileşenleri ise, a-pinen (%89,73), P-pinen (%2,01), mirsen (%2,98), limonen (%0,98), terpinen (%0,72), terpinolen (%0,91), germakren-D (%0,61), sedrol (%1,43) olarak tespit edilmiştir. Ayrıca, hem ardıç hemde kekik uçucu yağ konsantrasyon artışlarına paralel olarak, karaçam tohumlarının çimlenme oranının düştüğü tespit edilmiştir.
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105-114
  • Turkish

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