INTRODUCTION POTENTIAL OF FLAVONOID-CONTAINING PLANTS OF THE NATURAL AREA OF THE YAKUTSK BOTANICAL GARDEN
The flora of the natural area of the Yakutsk Botanical Garden (YBG) of the Institute of Biologic Problems of Cryolithic Zone, Siberian Branch of Russian Academy of Sciences, is the source of many useful plants including medicinal plants. The YBG is situated 7 km away west of Yakutsk, in the Chuchur-Muran locality. The Garden occupies a large area of 113 ha on the second terrace above the floodplain in the Lena River valley and 384 ha on the Prilensky Plateau, and represents almost the whole plant diversity of Central Yakutia. Flavonoid-containing plants growing in the natural communities of the YBG were investigated. The list of flavonoid-containing plants of the YBG natural communities comprising 36 species was made. Of those 25 species were under introduction tests (69.4%). Four species are typical of forest communities, 15 species are found in meadow phytocenoses; there are 8 steppe species and 4 marsh and wetland species. Five plant species are weeds. The study of the phenological development rhythms of 25 species of flavonoid-containing plants in the culture revealed medium flowering time. Twelve species flower in early summer and 10 species do in summer. When in culture, 10 species reproduce by self-seeding, 8 species do by vegetative reproduction, and 2 species both by vegetative reproduction and by self-seeding. The evaluation of the introduction potential of the tested species revealed that most of flavonoid-containing plants (22 species) were highly stable and stable. Three species were found to be unpromising for introduction.