Herbal
Reza Tamartash; Zahra Zamani; Qodratollah Heydari; Zeinab Jafarian jelodar
Abstract
Introduction: Considering the effect of soil and climatic factors on the quantity and quality of plant essential oils, a study was conducted with the aim of evaluating the effect of climatic and soil factors on the phytochemistry of the medicinal species of Stachys lavandulifolia in Kalakuh of Amol rangeland ...
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Introduction: Considering the effect of soil and climatic factors on the quantity and quality of plant essential oils, a study was conducted with the aim of evaluating the effect of climatic and soil factors on the phytochemistry of the medicinal species of Stachys lavandulifolia in Kalakuh of Amol rangeland and comparing it in northern and southern aspects. Methods: First, random sampling was done in three selected spots with three repetitions from two aspects. Soil samples were taken from a depth of 0-30 cm and transferred to the laboratory. The essential oils of plants were also extracted by water distillation and their composition was identified by GC/MS. In the statistical section, independent t-test was used to compare compounds in the two northern and southern aspects, and Pearson's correlation analysis was used to analyze the relationships between the data. Result and discussion: The results showed that among the extracted compounds, the compound α-Pinene, β-phellandrene, Thymol, Limonene, α-fenchene, γ-cadinene, cis-sabinene hydrate, 1-8-Cineole and Sabinene accounted for the largest percentage. Also, the comparison of the average yield of essential oil in the two aspects showed that the southern aspect has a significantly higher average than the northern aspect. The correlation results also indicated that the index factors of soil grain stability, acidity and silt have a very strong correlation at the five percent level. In general, the present results indicate that the compounds extracted from essential oil of Stachys lavandulifolia plant are strongly influenced by the habitat conditions of the region.
