动态照明可以减轻温室番茄的光周期损伤
Jason Lanoue1, Sarah St Louis1, Celeste Little1
1Harrow Research and Development Centre, Agriculture & Agri-Food Canada (AAFC), Harrow, ON, Canada.
Frontiers in plant science
|February 20, 2026
概括
使用动态照明将每日光线延长到24小时,在晚上减少蓝光,保持桃番茄产量,同时降低电力成本. 静态的24小时照明,特别是高蓝光照明,会损害植物健康和产量.
科学领域:
- 园艺科学 园艺科学
- 植物生理学 植物生理学
- 农业工程 农业工程
背景情况:
- 高度国家冬季光线限制,需要为全年作物生产提供补充照明.
- 与传统照明相关的高电力成本阻碍了可持续的温室运营.
- 长时间的低强度光照,利用非高峰电力,提供了一种具有成本效益的策略,以满足工厂的光照需求.
研究的目的:
- 为了比较24小时动态和静态照明策略与桃番茄生产的传统16小时光周期的有效性.
- 评估在24小时照明治疗中不同比例的蓝光 (10%和30%) 对植物生理学和产量的影响.
- 评估动态照明在降低电力成本的潜力,同时保持作物产量和质量.
主要方法:
- 桃番茄品种接受了三个照明处理:16小时的常规白光 (控制),24小时的动态光 (白天/蓝夜) 和24小时的静态光 (恒定光谱和强度).
- 每种治疗包括低 (10%) 和高 (30%) 蓝光的变化,所有治疗都提供相同的每日光线积分 (DLI).
- 测量和比较了植物生理反应 (光系II - Fv/Fm的最大量子产量) 和整体果实产量.
主要成果:
- 24小时动态照明策略保持了与16小时对照相对应的植物光合作用效率 (Fv/Fm),而静态24小时处理显著降低了光合作用效率.
- 使用高蓝光的24小时静态处理显示出最低的Fv/Fm,这表明潜在的光毒性.
- 在24小时动态照明下水果产量与对照组相似,而静态处理导致产量明显降低.
结论:
- 24小时动态照明有效地减轻桃番茄的光周期损伤,保持与传统方法相比的产量.
- 动态照明策略,特别是减少蓝光的动态照明策略,通过降低电价和减少基础设施投资,可以大幅节省能源成本.
- 实施动态照明为冬季光线有限的地区提供了可持续的全年温室生产的可行和经济有效的解决方案.
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