Study of peculiarities of essential oil accumulation by common yarrow herb of synanthropic flora of the Rostov Region

Aim – to study the peculiarities of essential oil accumulation in common yarrow herb harvested in urban areas of the Rostov region. Material and methods. The raw materials were collected along a country road with non-vibrant traffic, the North Caucasus railroad and along the M-21 highway with heavy vehicular traffic belonging to IA category. A step of 100 meters (from 1 to 300 meters) was chosen away from the studied highways. In addition, the raw materials were harvested in the area devoid of anthropogenic impact (control) and near the agricultural enterprise JSC "Aston". Results. For samples of control areas and agrobiocenoses, we noted a higher content of essential oil than in samples of urban biocenoses. The maximum value of the essential oil content was registered for the sample harvested in the control area, devoid of anthropogenic impact, the minimum content – for the sample collected along the highway M-21. There was a general tendency for increasing the essential oil content with declining anthropogenic impact. Conclusion. According to the studies we can conclude about the negative effect of anthropogenic impact, as well as the peculiarities of the growing area on the accumulation of essential oil in the grass of common yarrow.