An effective way of rosebay willowherb (Epilobium angustifolium) cultivation

Rosebay willowherb (epilobium angustifolium) is a promising plant to be introduced into culture. In 2020, the rosebay willowherb variety under the name «Vologda» has been included in the State Register of Selection Achievements. Cultivation issues are closely related to the study of physiological characteristics of the plant. The article presents the research results concerning the growth and development of the root system of the plant obtained from the seed and vegetative reproduction method. The authors give a comparative analysis of three-year observations in experiments. It has been found that the survival rate of seed crops does not exceed 31% of the starting material. The growth processes in the roots of seed plants differ significantly from that of obtained by the vegetative method. The number of shoots depends on the number of buds on the root offspring of plants. The total number of buds and well-developed buds on the roots also differs and depends on the method of reproduction and the age of the plants. Cuttings of root offspring take root well and give viable fruiting shoots in the first year of vegetation. In subsequent years, these plants grow strongly and are able to capture new areas quickly. Therefore, the method of reproduction of rosebay willowherb from the root offspring can become the main one when it is cultivated on an industrial basis.