目的 分析不同海拔高度黄连的质量和产量随株龄和月份的变化规律。方法 采用烘干称重法和比色法分别测定不同海拔高度下不同龄期和月份的黄连根状茎重量和小檗碱含量。结果 生长在低海拔地区的黄连产量和质量高于高海拔地区;黄连根状茎重量在第 5年达到最大,而小檗碱含量在第 6年达到最高;7月份是黄连根状茎重量和小檗碱含量在一年中最高的月份。结论 研究结果可为黄连生产和最佳收获期的确立提供科学依据。

Object To study the regularity of changes on quality and yield of Coptis chinensis Franch.with its different age and month at different altitude.Methods Weighting by stoving and colorimetric analysis were used to determine the content of berberine and the weight of C.chinensis in different age and month at different altitude.Results The yield and quality of C.chinensis grown in low altitude region are better than that in high altitude region; the wight of C.chinensis in five years old is the biggest.The content of berberine of C.chinensis in six years old is the highest.And the weight and berberine content of C.chinensis in July is the highest in one year.Conclusion Results of the study may provide references for C.chinensis production and the selection of the best harvest period.