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海拔对苍山地区野生滇龙胆品质的影响
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Abstract:
目的：本论文旨在研究海拔对苍山地区野生滇龙胆(Gentiana rigescens Franch.)品质的影响。方法：采用高效液相色谱(HPLC)法对滇龙胆根茎叶中龙胆苦苷的含量进行测定，并将各部分龙胆苦苷含量与海拔高度进行相关性分析。结果：苍山地区滇龙胆品质优良，根茎叶三部分龙胆苦苷含量均超过《中国药典》规定，根部龙胆苦苷含量在3.9%~8.2%之间。此外，根部龙胆苦苷含量与海拔高度有显著线性相关性，其线性拟合方程为y = ？0.2752 + x * 1.35048E？4。结论：苍山地区野生滇龙胆品质优良；在海拔2325.3~2599.7 m区间内，滇龙胆品质随海拔上升而升高；苍山地区海拔2400~2700 m范围内，是潜在的优良人工滇龙胆种植区。
Objective: This paper aims to investigate the impact of altitude on the quality of wild Gentiana rigescens Franch. in the Cangshan Mountain. Methods: High-performance liquid chromatography (HPLC) was employed to determine the content of gentiopicroside in the roots, stems, and leaves of G. rigescens. The correlation between gentiopicroside content in different plant parts and altitude was analyzed. Results: The quality of G. rigescens in the Cangshan Mountain was excellent, with the gentiopicroside content in the roots, stems, and leaves exceeding the requirements of the Chinese Pharmacopoeia. The gentiopicroside content in the roots ranged from 3.9% to 8.2%. Furthermore, a significant linear correlation was observed between the gentiopicroside content in the roots and altitude, with the linear regression equation being y = ？0.2752 + x * 1.35048E？4. Conclusion: The wild G. rigescens in the Cangshan Mountain exhibits excellent quality. Within the altitude range of 2325.3 to 2599.7 meters, the quality of G. rigescens increases with altitude. The altitude range of 2400 to 2700 meters in the Cangshan Mountain presents a potential area for high-quality cultivated G. rigescens.
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