升高的紫外线光子流对高CBD品种中的大麻素度影响最小
F Mitchell Westmoreland1, Paul Kusuma1,2, Bruce Bugbee1
1Department of Plants, Soils and Climate, Crop Physiology Laboratory, Utah State University, Logan, UT, United States.
Frontiers in plant science
|August 28, 2023
概括
增加紫外线 (UV) 光的暴露并没有显著提高高大麻素植物中的大麻素产量. 较高的紫外线光子流也减少了花产量和植物健康,表明紫外线不是增强大麻素的有效方法.
科学领域:
- 植物科学 植物科学
- 摄影生物学 摄影生物学
- 生物化学 生化学
背景情况:
- 紫外线 (UV) 辐射可能会损害植物的生化过程.
- 植物产生保护性颜料,包括大麻素,以吸收紫外线.
- 以前的研究表明,紫外线暴露可能会增加大麻素合成,但最近的研究显示出混合的结果,特别是在高大麻素品种.
研究的目的:
- 为了研究紫外线光子流量升高对高大麻素植物品种中大麻素合成的影响.
- 为了确定更高的UV-B和UV-A暴露能否提高大麻素度.
- 评估紫外线增加对植物健康和产量的影响.
主要方法:
- 植物暴露于光紫外线 (55% UV-B,45% UV-A) 在不同的生物有效的紫外线光子流 (UV-PFDBE) 水平.
- 紫外线治疗在收获之前进行了五周,从短日条件开始后的三周开始.
- 计算的每日UV-PFDBE水平在0到0.11mol m-2 d-1之间,相当于夏季阳光相对于日光积分 (DLI) 的41-218%.
主要成果:
- 与对照组相比,暴露于紫外线的植物中的大麻素度略有增加,但不显著 (3-13%).
- 随着紫外线光子流量增加,没有观察到大麻素度的显著增加.
- 只有在最高的紫外线处理水平下,叶绿素光度 (Fv/Fm) 和花产量降低.
结论:
- 升高的紫外线光子流不是提高大麻素度的有效策略,在高大麻素植物品种中.
- 高水平的紫外线暴露会对植物生理健康和产量产生负面影响.
- 这些发现与最近的研究一致,表明使用紫外线来促进大麻素产生的限制.
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