Influence of Salicylic Acid and Citric Acid on the Growth, Biochemical Characteristics and Essential Oil Content of Thyme (Thymus vulgaris L.)
Publish Year: 1394
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_JJMPB-4-2_002
تاریخ نمایه سازی: 6 آذر 1402
Abstract:
This study was conducted to determine the effect of foliar salicylic acid (SA) and citric acid (CA) applications on growth, biochemical characteristics and essential oil content of thyme (Thymus vulgaris L.) grown under field conditions. Salicylic acid (۰.۵ and ۱ mM) and citric acid (۵ and ۱۰ mM) were applied three times during the vegetation at ۱۵ day intervals. Results revealed that foliar application of SA and CA significantly enhanced the vegetative characters i.e. fresh and dry weight of thyme as well as pigments (chlorophyll a and carotenoids) content and essential oil production (۱.۳ fold as compared to control). There was a positive correlation between fresh and dry weights, chlorophyll a and essential oil. Citric acid treatment especially at ۱۰ mM decreased malondialdehyde (MDA) content. According to our results, applications SA at rate of ۰.۵-۱ or CA at ۵ mM should be recommended in order to improve yield and essential oil production in thyme.
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Authors
Seied Mehdi Miri
Department of Horticulture, Karaj Branch, Islamic Azad University, Karaj, Iran
Samad Ahmadi
Department of Horticulture, Karaj Branch, Islamic Azad University, Karaj, Iran
Pejman Moradi
Department of Horticulture, Saveh Branch, Islamic Azad University, Saveh, Iran
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