Research Information System
The 6th International Mediterranean Symposium on Medicinal and Aromatic Plants (MESMAP-6), İzmir, Turkey, 15 - 17 October 2020, pp.148-152, (Full Text)
In this study, Origanum vulgare subsp. Hirtum plant has been studied. The experiment was planned
with 4 replications according to randomized parcels. Four different doses of nitrogenous fertilizers
(0, 0.5, 1 and 1.5 kg N ha-1
) were applied in the experiment. Plants grown in greenhouse conditions
were harvested during the flowering period. At the end of the harvest, the effects of different doses of
nitrogen fertilizer on the essential oil components and chlorophyll contents of O. vulgare were
researched. The effects of nitrogen applications on the essential oil quantity and chlorophyll contents
lead to important changes. The quantity of O. vulgare essential oil increased with nitrogen application
and this increase was statistically significant (p<0.01). The essential oil quantity in plant were
determined as 1.5 kg ha-1 (1.8 %), 1 kg ha-1 (1.69 %), 0.5 kg ha-1 (1.53 %) and control (1.02 %). The
effect of nitrogen fertilizer applications on total chlorophyll contents and colour values of O.vulgare
leaves were not found to be statistically significant but the nitrogen fertilizer applications created a
difference at 5 % significance level on the chlorophyll concentrations