Tanacetum vulgare and Achillea millefolium resource potential in meadow and meadow-steppe communities of Tatarstan Republic

The article discusses the dynamics of the accumulation of aboveground phytomass and the content of phenolic compounds in its composition in Tanacetum vulgare L. and Achillea millefolium L. in different growing seasons as part of open phytocenoses of the broad-leaved and forest-steppe subzones within the territory of the Republic of Tatarstan. Geobotanical, population and biochemical research methods were used for the research. It was revealed that phytocenoses with the participation of T. vulgare and A. millefolium populations have a similar ecological and cenotic structure with a predominance of wet meadow species. The habitat conditions of T. vulgare and A. millefolium, which were identified using the ecological scales of G. Ellenberg, are characterized by almost full illumination (L = 7.5 points), moderately warm temperature regime (T = 5.9 points), fresh periodically dry or fresh in terms of moisture (F = 4.2-4.6) soils with an average or below average content of mineral nitrogen (N = 4.9-4.2). According to the results of the study, it is more expedient to collect medicinal plant raw materials Tanacetum vulgare and Achillea millefolium in the territory of the Republic of Tatarstan in the forest-steppe subzone, where these species have a high population density, the yield of dry above-ground phytomass and the volume of annual harvesting.