Investigating the variation of essential oil content, chlorophyll, carotenoid, anthocyanin and flavonoid of (Mentha longifolia ( L.) Hods. subsp. Longifolia) in several habitats of Marand

In this research to determine the qualitative phytochemical characteristics of Mentha longifolia (L.) Hods. subsp. longifolia populations in different habitats , an experiment was conducted as completely randomized design with three replications during 2015. Aerial parts of plants were collected in different habitats of plant (Farfar, Yekan-Sadi, Bengin, Koshksara and Darvishmohammad - 1100 to 1300 m) in East Azerbaijan province and the plant samples removed under ground in 0.5×0.5 quadrate. Essential oils were extracted by hydro distillation method. The phytochemical analyses: total phenol, flavonoide, anthocyanine, caretenoide and chlorophyll were measured by using spectrophotometric technique. The results were showed that the amount of essential oil yield, total flavonoids, phenol, chlorophyll, carotenoid and anthocyanin content had high variation in different regions, but in Bengin population the plant had the highest content of these metabolites, respectively. In conclusion showed that the Bengin region had high altitude, with the highest nitrogen and organic matter content of soil and there was the positive correlation between the increasing of essential oil and another secondary metabolites of plant with the photosynthetic pigments contents. So due to high levels of plant metabolites compounds in Bengin population, this population of plant in this region can be produced cultivars with desirable crop traits.