仙草最佳采收期研究

摘要

This study aimed to determine the optimal time to harvest Mesona chinesis Benth . Polysaccharide and flavonoids contents of the herb were measured using a spectrophotometer . The changes on the contents and yield of M . chinesis Benth showed the best time for the harvest seemed to be during the last 10 days in August ,when the polysaccharide content was 1.96% ,flavonoids ,13.83% and the yield ,240 gram per plant .%分别采用苯酚硫酸法和硝酸铝显色法测定仙草多糖和总黄酮，结合仙草产量测定，综合得到了仙草多糖总量和总黄酮总量的动态变化，确定8月下旬为仙草的最佳采收期，此时仙草的单株产量为240 g ・株-1，折合产量9000 kg ・ hm -2，多糖含量1.96％，总黄酮含量13.83％。