Journal of Chemical and Pharmaceutical Research (ISSN : 0975-7384)

Reach Us reach to JOCPR whatsapp-JOCPR +44 1625708989
All submissions of the EM system will be redirected to Online Manuscript Submission System. Authors are requested to submit articles directly to Online Manuscript Submission System of respective journal.

Original Articles: 2016 Vol: 8 Issue: 6

Effect of nitrogen and phosphorus application on herb and essential oil composition of Satureja montana L. â??carvacrolâ?? chemotype


A field experiment was carried out during two successive seasons to study the effects of nitrogen fertilizer (0, 50 and 100 kg N/fed.) and phosphorus fertilizer (0, 15.5 and 30 kg P/fed.) as well as 1st and 2nd cuts on dry matter, essential oil percentage and composition of Satureja montana under Egyptian conditions. In the two seasons, herb dry weight/plant, essential oil % and oil yield in two cuts were significantly increased with the rise in nitrogen and/or phosphorus fertilizers. 2nd cut gave higher values for herb dry weight/plant, essential oil % and oil yield than 1st cut. The maximum herb dry weight/plant and oil yield was obtained from plants fertilized (50 kgN+30 kg p/fed.) and harvested at 2nd in both seasons, while maximum essential oil percentage was obtained from plants harvested in the 1st cut with fertilized at (100 kgN /fed.) and from plants harvested in the 2nd cut with fertilized at (30 kg p/fed.) in the first and second seasons, respectively. Carvacrol was the major marker compound in Satureja montana. Other important compounds were p-cymene (7.78 to 9.95% and 4.10 to 6.44%), γ-terpinene (3.45 to 6.43% and 2.03 to 4.02%), linalool (0.56 to 1.70% and 0.81 to 2.60%), thymol (1.78 to 2.58% and 1.28 to 3.93%) and β-caryophyllene (1.88 to 2.34% and 2.32 to 3.20%) considered as minors in the first and second cuts, respectively. The highest carvacrol percentage was recorded from Satureja montana harvested at 2nd cut and fertilized by (50 kgN+30 kg p/fed.). This study showed that the accumulation of essential oil constituents is influenced by the nitrogen and phosphorus fertilizers as well as 1st and 2nd cuts.

rtp slot demo