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Research Paper | August 1, 2013

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The effect of phosphorus fertilizer changes on Thymus vulgaris L. yield and essence in different irrigation levels

Amirreza Saffari, Manoochehr Jamnejad, Rasoul Mohammadi Echi, Mohammad Abdollahi, Zahra Fakharian Kashani

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Int. J. Biosci.3(8), 110-115, August 2013

DOI: http://dx.doi.org/10.12692/ijb/3.8.110-115


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Thyme essence is rich in phenol compounds with antifungal and antibacterial properties and it is also used as flavoring in the food industry. Periodic irrigation and fertilization are important factors that influence on the quantity and quality for aromatic plants. In this study, qualitative and quantitative changes in the essence of thymus have been studied under different levels of irrigation and phosphorus level. This experiment was conducted in agricultural year of 2011-2012 in research farm in Saveh Islamic Azad university as randomly complete blocks design as factorial in four duplications and two phosphorous factors ( in four levels of 150,200,250 and 300 kg/ha) and irrigation period (at four levels 5, 10, 15 and 20 days ). The traits were analyzed and all traits decreased with increasing irrigation considerably. Irrigation level of 5 days produced highest fresh and dry substance yield, essence and thyme and highest essence percentage in irrigation level of three while phosphorus had significant effect on dry and caroacrol yield in level three.


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