Malysheva S.K., Candidate O.B.S.S.R.O.L.O.D.F.S.C.O.T.E.A.T.B.O.F.R.
Vestnik IrGSHA 2022; (111): 109-117
Expanding the range of ornamental plants to create a comfortable living environment for people in residential areas today is an important environmental task. Introduction studies make a great contribution to solving these problems. Therefore, the purpose of the research is relevant - a comprehensive assessment of the ecological, biological and decorative features of species of the genus Spiraea L. when introduced in the south of Primorsky territory. The studies were carried out on the introduction plots of the arboretum of the FEB RAS Mountain Taiga station. Standard, well-known methods of phenological observations, assessment of winter hardiness, decorativeness, and prospects of cultivation were used. The generalized results of many years of research are presented in brief morphobiological characteristics of 17 species and cultivars of Spiraea. It has been established that hybrid spireas S. x vanhouttei, S. x cinerea cv. Grefsheim with snow-white numerous inflorescences densely covering weeping shoots, S. microgyna with large beautiful leaves and inflorescences, S. japonica and its varieties, distinguished by bright multi-colored leaves and a variety of crown shapes, are characterized by a high degree of decorativeness. An analysis of the habitats showed that most of the studied spireas belong to the mesophyte-mesotrophic ecological group. The maximum indicators of the integral coefficient of prospects were noted in 13 studied species of spirea, which makes it possible to recommend them for wide use in the ecological and climatic conditions of the south of the Far East.
