Effect of irrigation frequency on yield and chemical compositions of the essential oil from Salvia officinalis L.
Subject Areas : Phytochemistry
najmeh vosoughi
1
,
Masoud gomaria
2
,
Prof. Abdollah Ghasemi Pirbalouti
3
*
,
shahab khaghani
4
,
fatemeh Malekpoor
5
1 - Department of Medicinal Plants, Arak Branch, Islamic Azad University, Arak, Iran
2 - Department of Agronomy and Plant Breeding, Arak Branch,Islamic Azad University, Arak, Iran
3 - Research Center for Medicinal Plants, Islamic Azad University., Shahr-e-Qods Branch, Tehran, Iran
4 - Department of Agronomy and Plant Breeding, Arak Branch,Islamic Azad University, Arak, Iran
5 - 3Department of Medicinal Plants Department, Shahrekord Branch, Islamic Azad University, Shahrekord, 88146, Iran
Keywords: Irrigation, 8-Cineole, essential oil yield, Salvia officinalis L, 1,
Abstract :
Drought stress is as one of the most important limited factors that in agriculture systems can cause damage to growth, yield and secondary metabolites in medicinal and aromatic plants. A filed experiment to study on effect of irrigation frequencies, including 4, 6, and 8 every days on quantity and quality of the essential oil from the aerial parts of sage (Salvia officinalis L.) was done based on a randomized complete block design (RCBD) in three replications at the research field at Islamic Azad University of Shahrekord, southwestern Iran in 2016. The leaves of sage were harvested at early flowering and the essential oil from the dried leaves was subjected to hydrodistillation using a Clevenger-type apparatus. The essential oils under different treatments were analyzed by GC and GC/MS. Results indicated that irrigation frequencies levels had significant effects on essential oil yield and percentages of 1,8-cineole (as the main constituent in the oil), limonene and α–humulene. The highest yield of the essential oil and the maximum contents of 1,8-cineole (11.05%), limonene (2.67%) and α–humulene (1.32%) were obtained from treatment of eight every days of irrigation. Probably, it seems that increased irrigation intervals (mild drought stress) can be effective in quantitative and qualitative properties of essential oil from sage (Salvia officinalis L.).
References
Revista Brasileira de Plantas Medicinais, 15: 438-441.
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