Анализ интродукции растений рода Rosa L. в условиях степного Приднепровья

Abstract

The study of species of different geographical origin within the same genus is promising in studying the mechanisms of adaptation and acclimatization of introducents. The regions that differ significantly in their climate characteristics are the main sources of the species diversity of dog-roses, for their potential introduction in Ukraine. Therefore, when you include the dogroses in the green plantings in the Steppe of Pridneprov’ya, it is necessary to attract species of both natural flora and introduced from other floristic areas that have been pre-introduced in this region, since it refers to the zone of limited introduction. We have analyzed the composition of the collection of the genus Rosa L. in the Botanical Garden of the Dnipro National University named after Oles Honchar from the beginning of the collection to the present day. Studies were performed with 11 species of the dog-roses of native flora and introducents of various regions of moderate and partially subtropical zones. The analysis of the degree of correspondence between the climatic conditions of the natural and new introducent areals, and the assessment of the drought resistance and winter hardiness of the dog-roses were carried out. Based on the results of the study, prospective species (R. pimpinellifolia, R. rubiginosa, R. micranta, R. iberica, R. glauca, R. canina, R. rugosa, R. hugonis, R. multiflora) were recommended for usage by Zelenbud, CJSC for planting and greenery of the city facilities of the city Dnipro.