The Introduction In Daqing Area And Effective Components Analysis Of Aralia Continentalis Kitag

The perennial herb Aralia Continentalis Kitag is both used as one kind of Chinese herds and eaten as vegetables. The wild resource is greatly destroyed, and the artificial introduction and cultivation have huge significance and influence. After the analysis and research on the effective components is completed, the quality evaluation on the medical materials of Aralia Continentalis Kitag can be established scientifically.The seed has the characteristics of dormancy, and hardly germinates in the normal conditions. The alternating temperature is more beneficial for the seed to sprout than the stable temperature, and the germination rate of the GA₃-untreated seeds under alternating temperature is much higher. The hormones IAA and 2, 4-D also have promoting effect on the seed germination, and the germination time of the treated seed is quite shorter than those that is only processed through the alternating temperature.After the introduction into Daqing and one-year-long acclimatization, Aralia Continentalis Kitag had the natural phenological spectrum. Although the lowest temperature was extremely -39.2℃, in the second year the plant still bloomed and fruited normally, which suggested the introduction succeeded.In the field, the shading shall be stressed and more irrigation shall be provided. After the transplantation, the timely weed control and soil loosening is necessary, and the drainage in rain season and hilling up in autumn is critical for the plant to safely survive the winter. There are none reported diseases in Aralia Continentalis Kitag planted in Daqing, possibly because of the appropriate preventive measures or the famine in Daqing. The proper planting density which have the yields best of the tender shoots is 12 plants m².The effective components in every part of Aralia Continentalis Kitag are determined by spectrophotometry. The content of total flavones in leaf is much higher. The five-year-old leaf has more total flavones than others, and three-year-old plantlet also has more total flavones. The saponin is concentrated in the root and increases by years, in the fifth year reaching to 19.939 mg/g. The polysaccharide is also distributed mainly in the root, and the content in three-year-old root is the highest.