Abstract
White clover (Trifolium repens L.) is a valuable melliferous, pasture and a promising species for use as a medicinal raw materials. T. repens herb contains ascorbic acid, carotene, alkaloids, glycosides and other substances. Fourteen coenopopulations of T. repens were studied on the territory of the Republic of Tatarstan. The assessment of habitats of T. repens was carried out by indicator methods using the ecological scales of G. Ellenberg. The density of coenopopulations, comparative morphometric analysis and reserves of dry aboveground biomass are analyzed in this article. It was found that the soils in the subtaiga subzone are weakly acidic, fresh in terms of moisture, with a nitrogen content above average; soils in the north of the broad-leaved subzone are dry and periodically fresh, with a slightly acidic reaction and an average content of mineral nitrogen; and the soils in the south of the broad-leaved subzone are dry and periodically fresh, predominantly neutral, with a nitrogen content above average. A comparative analysis of the scoring of soil characteristics with the content of the main nutrients in the soil has been carried out. T. repens coenopopulations in the north of the broad-leaved subzone have of low density, and high biomass shoots are formed. The yield of the studied T. repens plants is from 21-178 kg of dry weight/ha. The highest yields of dry aboveground biomass of plants was observed in the northern deciduous subzone. We recommend the highest-yielding coenopopulations of T. repens for harvesting plant material.
Highlights
White clover (Trifolium repens L.) is a summer-winter-green or summer-green herbaceous perennial polycarpous plant with elongated creeping sympodially growing shoots
White clover can be used as a medicinal plant raw material, since ascorbic acid, carotene, glycosides, flavanoids and other substances were found in the aerial parts [5, 6, 7]
The investigated of white clover CPs in the subtaiga subzone are part of the forest edge communities, in the subzone of deciduous forests and forest-steppe - Festucetum varioherbosum and Calamagrostetum varioherbosum meadows
Summary
White clover (Trifolium repens L.) is a summer-winter-green or summer-green herbaceous perennial polycarpous plant with elongated creeping sympodially growing shoots. [1, 2, 3] White clover can be used as a medicinal plant raw material, since ascorbic acid, carotene, glycosides, flavanoids and other substances were found in the aerial parts [5, 6, 7]. Identification of adaptive mechanisms to the habitat conditions of economically significant plants on the territory of the Republic of Tatarstan is relevant
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