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目的:研究元胡种茎规格对其产量及品质的影响。方法:用聚类分析法将元胡块茎分级,播种,测定株高、总叶片数等主要生长指标。收获后按照2015版中国药典的要求测定醇溶性浸出物和延胡索乙素含量,进行比较。结果:用中块茎(1.70 cm≥直径≥1.20 cm)播种的元胡长势最旺,元胡块茎最大,最大鲜重为3.80 g,最大直径为2.59 cm/个,子元胡数最多,为10.6个/株,鲜产量高达6792.9 kg/hm~2,折干率最高,为33.7%,醇溶性浸出物和延胡索乙素含量最高,分别为30.6%、0.134%。结论:元胡种茎规格不同对其产量及品质有一定程度的影响。
Objective: To study the effects of stem size of Yuanhu on its yield and quality. Methods: The seedlings of Yuan Hu were classified and sowed by cluster analysis, and the main growth indexes such as plant height, total number of leaves and so on were determined. After harvest according to the requirements of the 2015 edition of the Chinese Pharmacopoeia determination alcohol-soluble extract and tetrahydropalmatine content, compared. Results: The seedlings of Yuan Hu planted in middle tuber (1.70 cm≥diameter≥1.20 cm) were the most prosperous. The tuberous stem of Yuan Hu was the largest with the maximum fresh weight of 3.80 g and the largest diameter of 2.59 cm / Per plant, the fresh yield was as high as 6792.9 kg / hm ~ 2, the highest rate of drying was 33.7%, and the contents of alcohol-soluble extract and tetrahydropalmatine were the highest, which were 30.6% and 0.134% respectively. Conclusion: The different specifications of stems of Yuanhu can affect their yield and quality to a certain extent.