Some results of the introduction of useful plants of the flora of Siberia in the North-West of Russia

Some results of cultivation of Siberian flora species in culture at the introduction nursery of useful plantsof the Peter the Great Botanical Garden of the BIN RAS, in St. Petersburg have been summed up. All species are classifiedaccording to biological resistance. The analysis of the introduction resistance of plants in Siberia showed that 83.3 % ofthe species adapted well to the new conditions of existence. According to the duration of the introduction experiment,all plants were divided into 5 groups. 37 % falls on the group of species, the life expectancy of which is more than 60years. 45 species of rare and endangered flora of Southern Siberia, grown in culture, have been identified, most of themcan be attributed to resistant (46.7 %) and highly resistant species (31.1 %). The maximum age of these plants in theexperiment reaches 68–84 years. The data obtained can be used to preserve and enrich regional flora and prepare materialfor repatriation work.