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Abstract
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Essential oil components and yield of Ferula gummosa Boiss, in different bioclimates of
Iran, has been investigated. The highest essential oil versus galbanum dry weight was recorded in the samples
from Ebrahim Abad (16.9 %) and the lowest amount (11 %) was measured from Angouran. Monoterpenes
Hydrocabons (α-pinene (17-56.55 %), β-pinene (10.44-37.04 %), δ 3-carene (9.16-10.75 %) and Limonene (0-13.23
%)) were the predominant oils components of F. gummosa. The high variability in the oil content and composition
in different populations showed a remarkable difference in monoterpenes content variation from 79.47 to 86.48
%. The highest concentration of α-pinene (56.55 %) was in the Galbanum sampled from Angouran (AG) followed
by β-pinene having the highest concentration (37.04 %) from the roots samples. There was a considerable
chemo-variation in the oils, the study is useful base for breeding programs of medicinal plants in order to obtain
a proper line with advantageous compound as natural source for pharmaceutical and agricultural industries.
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