Main achievements in introduction and conservation of Guangxi Medicinal Botanical Garden

Guangxi pharmaceutical botanical garden is located in the geographical position of transition from tropics to subtropics, belonging to subtropical monsoon climate, with sufficient sunshine, mild climate, abundant rainfall, distinct dry and wet seasons, average annual temperature of 21.7 ℃, and annual rainfall of 1200-1500 mm The soil types are red soil, yellow soil, mainly sandy loam and loam, and the soil fertility is above medium level The superior climate and geographical conditions are suitable for the growth and preservation of a large number of medicinal plant species In the aspect of introduction and conservation, the tropical and subtropical medicinal plants are mainly conserved in the field of ex situ conservation, focusing on the collection of native medicinal plants in Guangxi Meanwhile, the collected plants in Chinese Pharmacopoeia, commonly used traditional Chinese medicine and famous ethnic medicinal plants, as well as the world-famous commonly used, traditional and ethnic medicinal plants are also preserved Up to 2008, more than 4000 kinds of medicinal plants have been collected and preserved, among which the top ten are Compositae 180, sphenoid 162, Labiatae 106, Orchidaceae 101, Euphorbiaceae 94, Zingiberaceae 79, Rubiaceae 67, Liliaceae 65, Rosaceae 62, Solanaceae 62 The three-dimensional compendium of Materia Medica garden, which is preliminarily planted and preserved according to the plant morphology classification, includes the grass department, the wood department, the vegetable department, the long corridor for the treatment of all diseases, Guangxi specialty drug area] rare and endangered drug area, shade drug area, liana drug area, etc., displaying the local characteristics of Guangxi, tropical and subtropical drug plants, rare and endangered drug plants, etc recorded in compendium of Materia Medica In addition, the research base for the conservation of medicinal plant germplasm resources established at the beginning of 2003 is mainly functional area and special garden for the research of medicinal plant germplasm, which is used for the introduction, domestication and conservation of medicinal plant germplasm resources, including introduction and domestication garden, breeding garden, Chinese Pharmacopoeia area, medicinal flower area, ginger garden, natural classification garden, etc In Guangxi Medical botanical garden, the methods of in vivo preservation, seed preservation and tissue culture in vitro preservation are used to establish a Germplasm Resource Bank of medical plants, which can collect, identify and preserve all genetic information of medical plants, so as to achieve the purpose of long-term and effective preservation of germplasm resources of medical plants The living preservation is mainly field planting and greenhouse living preservation; the seed preservation is mainly aimed at the herbaceous plants with seed reproduction and storage resistance, which are preserved by low temperature drying and normal temperature drying; the in vitro preservation as the supplement of living and seed preservation is mainly applicable to the rare and endangered medicinal plants in Guangxi At present, there are many facilities for germplasm conservation of medicinal plants, including field bank with complete drainage and irrigation facilities, humidity control and heat preservation greenhouse, temperature control tissue culture in vitro preservation room, normal / low temperature seed preservation room and breeding nursery According to the growth habits of different medicinal plants and the characteristics of germplasm conservation, the corresponding preservation methods were selected According to the reconstruction and upgrading construction goal of the pharmaceutical garden, the investment in the basic conservation facilities will be increased, including the introduction and trial seed isolation nursery, breeding nursery with self-control temperature and humidity conditions, the field living preservation library with suitable drainage and irrigation, habitat, the in vitro library with 5000 kinds of medicinal plant germplasm preservation, and the low-temperature preservation library with 20000 medical plant seeds, etc.