The effect of drought stress on three clary sage (Salvia sclarea L.) populations from different habitats
Journal Title: Journal of Biodiversity and Environmental Sciences (JBES) - Year 2014, Vol 5, Issue 4
Abstract
Clary sage (Salvia sclarea L.) has various endemic populations in Iran. The main compound in essential oil of this plant is linalyl acetate. To compare three main populations from Iran and to assess their response to drought stress, this experiment was conducted at Alborz Station, Research Institute of Forests and Rangelands, Karaj, Iran. The experiment was conducted in split plot in the form of a randomized complete block design with three replications. The main factor was three clary sage populations (Karaj, Semnan and Esfehan) and the sub factor was three drought stress levels (irrigation at 90, 60 and 30% FC). Results showed that among the studied populations, biologic yield and essential oil yield were the highest in Esfehan population (3407.7 and 14.3 kg/ha, respectively). Increasing the severity of drought stress suppressed all measured traits, except for the essential oil content and potassium content which were higher in 30% treatment. Studying the interaction of two factors showed that biologic yield was the highest in Esfehan × 90% (5403.3 kg/ha); however, essential oil yield was the highest in Semnan × 90% (24.4 kg/ha). Results generally indicated that Esfehan population is the highest yielding one, and drought stress would be beneficial when enhancement of essential oil content is desired.
Authors and Affiliations
Mohammad Reza Ardakani, Bohloul Abbaszadeh, Masoumeh Layegh Haghighi
Keywords
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