Stevia rebaudiana is a high value crop due to the strong commercial demand for its metabolites (steviol glycosides) but has limited geographical cultivation range. In non-native environments with different daylength and light quality, Stevia has low germination rates and early flowering resulting in lower biomass and poor yield of the desired metabolites. In this study, artificial lighting with light-emitting diodes (LEDs) was used to determine if different light quality within and outside of the photosynthetically active radiation (PAR) range can be used to improve germination rates and yields for production of steviol glycosides for the herbal supplement and food industry.

中文翻译：

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超出 PAR 光谱：光质量对甜叶菊 (Bertoni) 发芽、开花和代谢物含量的影响

由于对其代谢物（甜菊糖苷）的强烈商业需求，甜叶菊是一种高价值作物，但其地理种植范围有限。在具有不同日长和光质量的非本地环境中，甜菊的发芽率低，开花早，导致生物量较低，所需代谢物的产量较低。在这项研究中，使用发光二极管 (LED) 的人工照明来确定是否可以使用光合有效辐射 (PAR) 范围内外的不同光质量来提高发芽率和生产甜菊糖苷的产量，用于草药补充剂和食品工业。