RESULTS OF THE PRIMARY INTRODUCTION OF SAPOSHNIKOVIA DIVARICATA (TURCZ.) SCHISCHK. IN THE CENTRAL SIBERIAN BOTANICAL GARDEN SB RAS
T.V. Elisafenko1, E.A. Korolyuk1, P.N. Yugrina1, B.M. Urbagarova2, V.V. Taraskin2
1Central Siberian Botanical Gaden, SB RAS, Novosibirsk, Russia
2Baikal Institute of Nature Management SB RAS, Ulan-Ude,Russia
Keywords: Saposhnikovia divaricata, introduction, laboratory seed germination, reproduction, seed productivity
Abstract
Plants of Saposhnikovia divaricata (Turcz.) Schischk. is widely used in traditional medicine of Asian countries. A wide range of pharmacological activity is due to the presence of polyphenolic compounds, the main of which are chromones. In the Far East and south of eastern Siberia natural populations of this species may disappear due to the increasing demand for medicinal raw materials. The results of the primary introduction of S. divaricata are presented in this article. The research was conducted in 2016-2021 years in the conditions of introduction at the collection site “Rare and endangered plants of Siberia” of the Central Siberian Botanical Garden SB RAS (Novosibirsk). The introduction method of direct experiment was used. The introduction was carried out by seeds from the natural population in two ways: by seedlings and by sowing in the ground. The success of the laboratory-greenhouse-soil method for growing the endemic Asian species S. divaricata was established. Seeds do not have rest, laboratory germination is high and reaches 90 %. Winter hardiness of plants of the first year of life is average, after winter there are 50 % of individuals left, winter hardiness of plants of the second year of life is high. S. divaricata is a young monocarpic in culture, the pregenerative period lasts 2 years, for 3 years the plants bloom and form seeds and die during the next winter. In the conditions of introduction the height of plants reaches 95 cm, which is more than in natural conditions (up to 76 cm). The branched elongated shoot is the synflorescence panicle of compound umbel. The branching of the shoot occurs up to the 5th order both in nature and in culture. The potential seed productivity of the individual was more than 45 thousand ovules, the real seed productivity was about 20 thousand seeds. The primary introduction was evaluated according to 12 criteria. The species S. divaricata is medium-promising for introduction in the conditions of the forest-steppe zone of Siberia
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