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Growth and oil yield of thymus vulgaris plant as influenced by some amino acids and ascorbic acid

Author : Gamal Mahmoud Ghazal

Field experiment was carried out during two successive seasons (2012 and 2013) to evaluate the effect of some amino acids such as phenylalanine and tryptophan as well as ascorbic acid as vitamin c with different doses on yield and essential oil of Thymus vulgaris L. plants. Phenylalanine at 150 mg / l produced the most promising effect on yield and essential oil as percentage or yield (ml/plant). Thymol, p-cymene and linalool were the main constituents of essential oil of this plant. Based on the experimental results it is recommended to treat thyme plants with phenylalanine at 150 mg / l to produce high mass production and oil yield.


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