Abstract
Nardostachys jatamansi DC. is a small, herbaceous medicinal and aromatic plant species (MAPs) of family Valerianaceae. Essential oil content in relation to various phenophases (seasonal variation) and methods of drying is not reported so far. Therefore, mature plants were collected from two different sites of Tungnath during four different phenophases and variability in the essential oil content was determined. Optimum essential oil content (2.18 ± 0.16%) was recorded during peak flowering stage (August). Extraction of leaves produced only traces of the essential oil. Essential oil content was highest in freshly distilled samples as compared to air and oven dried samples. The study on quantity of essential oil of different phenophases found to be helpful for getting better quantity of the essential oil and will helpful for practicing good harvesting practices for N. jatamansi.
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