بررسی اثر تنش خشکی بر کیفیت و کمیت ترکیبات موجود در اسانس گیاه شوید (Anethum graveolens L.)

Anethum graveolens L. is a mediterranean plant which its essential oil have been used in medicine, food and costemic industeries. In this study the effects of water stress on quantity and quality of essential oil were investigated. The five drougth treatment inclded 0 (control), 80%, 60%, 40%, 20% field capaciry were used. The results showed that the most content (0.50% w/v) of essential oil were obtained from 40% feild capacity treatment. Analysis of essential oils showed that alpha-phellandrene as the main component of the oils have not regular cganges during drougth sress as the its maximum and minimum amounts of were observed in 80% field capacity and control treatments respectively. Also dillether was decreased during drougth stress while beta-phellandrene was incresed.