较高的相对湿度显著降低了大麻素度,同时延迟了大麻sativaL中开花的发展
Ingrid Carolina Corredor-Perilla1, Tae-Hyung Kwon2, Sang-Hyuck Park1
1Institute of Cannabis Research, Colorado State University-Pueblo, Pueblo, CO, United States.
Frontiers in plant science
|December 3, 2025
概括
较高的相对湿度 (RH) 显著延迟了开花,并减少了大麻植物中的生物质. 升高的RH还抑制了关键的大麻素度,影响了作物产量和质量.
科学领域:
- 农业科学 农业科学
- 植物生理学 植物生理学
- 生物化学 生化学
背景情况:
- 相对湿度 (RH) 对于植物发育至关重要,它影响了透气,形态和代谢物生物合成.
- 对于大麻 (Cannabis sativa L.) 的生长和大麻素产生的最佳RH条件尚未明确.
- 了解RH影响对于最大限度地提高作物产量和大麻素特征至关重要.
研究的目的:
- 研究大棚级RH对CBD主导大麻菌株的生长和大麻素度的影响.
- 确定不同RH水平对关键生长指标和大麻素配置文件的影响.
- 为了确定大麻种植的最佳RH范围.
主要方法:
- 大麻植物在受控条件下生长,具有两个RH范围:低 (37-58%) 和高 (78-98%).
- 增长参数 (茎长,树干直径,节点数等) 每周都会记录一次.
- 生物质和14种大麻素在收获时使用HPLC量化.
主要成果:
- 高RH导致蒸汽压力缺陷 (VPD) 降低,超出最佳范围,导致生物质显著减少 (-75.3%).
- 升高的RH延迟了三周的开花,减少了树干直径 (-0.4%) 和结节数 (-29.3%).
- 包括CBD-A,CBD和CBC-A在内的大麻素水平在高RH下被显著抑制.
结论:
- 树冠水平上升的RH会对大麻生长产生负面影响,延迟开花并减少生物质.
- 高RH显著抑制了大麻素的积累,影响了植物的整体化学特征.
- 通过控制RH来保持最佳VPD对于最大限度地提高大麻产量和大麻素含量至关重要.
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