Method: Single factor randomized block design was applied, plant samples were collected and investigated periodically, and dry weight, production and the main active ingredient content were measured.

方法：试验采用单因素随机区组设计，定株定期进行调查测定，收获后测各器官干重、产量和主要有效成分含量。

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Method: Using plant single cell plate culture technique.

方法：利用植物细胞平板技术培养。

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Method: Using plant single cell plate culture technique.

方法：利用植物细胞平板技术培养。

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