Study about quantitative and qualitative variations of Thymus pubescens essential oil affected by soil changes at different zones of E-Azerbayjan province

For studing of edaphical factors effect on Thymus pubescens essential oil soil(0-30 cm)and plant samples at flowers phenology step were collected from five sites in E-Azerbaygan province . Samples essence were taken by hydrodistillation method and soils were analyzed in soil and water lab of East - Azerbaijan Agricultural and Natural Resources Research and Education Center . Based on canonical analysis of twenty six essential oil components with 10 soil factors five sampling regions were divided to three groups as follow: (Mishow , Eigdalow) , (Kordedeh,Yuzband) and Sahand.Comparison of the data in two tables of five sites essential oil compounds and physicochemical factors of this soil areas showed that N and C percent have reverse relation with essence quantity. Data from CCA analysis was showed that essence components have relation with soil factors. The results of CCA analysis demonstrate that OC, clay, pH and sand % with axis1, CaCO3 and EC with axis2 have more correlation.