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Paper Information

Journal:   PLANT ECOPHYSIOLOGY (ARSANJAN BRANCH)   summer 2017 , Volume 9 , Number 29 ; Page(s) 195 To 203.

Study of effective environmental factors on thyme quality and quantity in field and habitat conditions

In order to study the effects of environmental factors on quantity and quality yield of Thymus daenensis in habitat and field conditions, an experiment was conducted as a randomized complete blocks design with 3 replications in Fozveh and Ghahiz stations of Agricultural and Natural Research Center of Esfahan. The plant aerial parts were harvested at 50% of flowering stage in the field and habitat. Place had significant effect on all evaluated traits with the exception of 1, 8 cineole and essential oil percentage. The highest dry yield, essential oil yield and Thymol yield (2323. 3, 62. 4 and 53. 3 kg/ha, respectively) observed in Fozveh station with a significant difference by another places. The major components of oil were consisted of P-cymene, 1, 8-cineole, δ-terpinene, Borneole, Carvacrol and Thymol. The highest amount of Thymol and carvacrol were observed in Fozveh and Ghahiz stations, respectively. Oil percentage ranged from 2. 9-3. 02%. Dry yield and oil yield reduction were observed with increasing altitude. Also Carvacrol increased by increasing of soil potassium but decreased by increase in soil salinity. Based on the results, different soil and climate conditions, especially altitude, were affected thyme dry yield and oil components and caused economic or non-economic production.
Keyword(s): habitat,field,Thymus daenensis,yield
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