Оценка уровня адаптации лиан к воздействию неблагоприятных факторов среды в условиях г. Саратова

Abstract

The article is devoted to the actual topic of expansion of assortment of lianas in vertical gardening in Saratov by the use of introduced species of tree lianas from the Far East. Currently, the studied species: Actinidia arguta; Actinidia kolomikta; Ampelopsis aconitifolia; Schisandra chinensis; Menispermum dauricum — have been distributed in individual land use areas mainly as food crops. It is noted that the far Eastern species of lianas differ in a significant amplitude of biological tolerance of adaptation, have high frost resistance and immunity against diseases. The reason for including these species in the prospective assortment for use in urban plantations is given taking into account a comprehensive assessment of their drought resistance, heat resistance, and resistance to anthropogenic impact. All species are resistant to high summer air temperatures and insufficient humidity, which is typical for the climate of Saratov. The assessment of gas resistance of lianas is given in comparison with the results of studies previously conducted with respect to other species, which allows us to determine possible combinations of plants on landscaping sites. Ranking of species showed that the studied Far Eastern species of lianas have high and medium gas resistance. The obtained data give reason to recommend the studied lianas for use in plantings of various categories in Saratov, depending on the availability of care and air quality. To prevent damage to leaves and shoots by drought, as well as to improve the gas resistance of plants, it is recommended to conduct agro-measures that improve the water-air and food regime of soils in the growing areas.