Biological features of some representatives of the Genuses sorbus, Ribes and Grossularia to the introduction in the middle taiga of Komi Republic

Results of studying of biological features of plants genuses Sorbus, Ribes and Grossularia at introduction in the north are given in article. The analysis of data of their phenological development is carried out. It is established that the seasonal rhythm of development of the introduced types corresponds to climatic conditions of the region of introduction. Values of some reproductive indicators of the studied types of genus Sorbus are analyzed. The steadiest and productive grades of R. nigrum and G. reclinata are allocated. Prospects of use the introduced species are defined.