Comparison of Essential Oil Composition in<i>Dracocephalum moldavica</i>in Greenhouse and Field

Abstract

In order to study essential oil components of Dracocephalum moldavica in greenhouse and field cultivations, a pot experiment was carried out in a completely randomized design with 4 replications. Clevenger method was used to extract the essential oils from the plants foliage. Essential oil components were analyzed and recognized by GC and GC-MS. The results indicated that thirty six and twenty one components were identified, from D. moldavica, in field and greenhouse conditions, respectively. The major constituents of the oil of D. moldavica were found, as geranyl acetate (46.72 %), geraniol (15.87 %), geranial (8.36 %), neral (5.8 %), cedroxyde (3.39 %), neryl acetate (2.57 %) and hinesol (2.39 %) (totally 88.49 %) in field conditionand geranyl acetate (39.0 %), geraniol (27.30 %), methyl citronellate (12.92 %) and neral (9.32 %) (totally 88.54%) in greenhouse condition. The highest of main components were geranyl acetate and geraniol in both of cultivations.