Objective To optimize and establish the extraction of total flavones in Primula sikkmensis Hook.

目的研究钟花报春花总黄酮最佳提取工艺条件。

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An example is the S/s gene, which determines pin(s) and thrum (S) style length in certain species of Primula.

例如报春属植物中决定花柱长短为针式型（s）还是线式型（S）的S/s基因。

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Primula secundiflora Franch. (Primulaceae). Photographed by Gang HAO. See Wang et al. , pp 13–22 in this issue.

偏花报春（报春花科）。郝刚摄。见正文13–22页王凤英等的文章。

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Primula secundiflora Franch. (Primulaceae). Photographed by Gang HAO. See Wang et al. , pp 13–22 in this issue.

偏花报春（报春花科）。郝刚摄。见正文13–22页王凤英等的文章。

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