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为了确定玉竹的最佳采收年限和不同生长时期多糖含量的变化规律,试验分别于玉竹地上茎开花期、绿果期、绿黑果期、枯萎期时采集玉竹的根状茎,并对多糖含量进行测定。结果表明:玉竹的最佳生长年限为3年生,3年生玉竹多糖含量最高,玉竹在从开花到枯萎的过程中多糖含量呈现递增趋势,枯萎期达到最高。
In order to determine the optimum harvesting time of Polygonatum, and the changes of polysaccharide content in different growth stages, the rhizomes of Polygonatum were collected from the stems of flowering, greening, greening, The polysaccharide content was determined. The results showed that the best growth period of Polygonatum was 3 years old, and the content of polysaccharide in 3-year-old Polygonatum was the highest. The content of polysaccharide in Polygonatum rose from blossom to wilt, and reached the highest in withering.