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在过度照明的日子之后,降低目标每日光线积分可以降低生菜生产成本

Andres M Mayorga-Gomez¹, Marc W van Iersel¹, Rhuanito Soranz Ferrarezi¹

¹Department of Horticulture, University of Georgia, 1111 Miller Plant Sciences, Athens, GA, United States.

Frontiers in plant science

|December 25, 2024

概括

菜植物可以承受多天低日光积分 (DLI) 后高DLI一天,减少补充照明的需要和节能. 这挑战了以前关于植物生长最佳DLI维护的假设.

科学领域:

园艺园艺园艺园艺
植物生理学植物生理学
农业工程农业工程

背景情况:

补充照明对于保持植物生长的最佳日光积分 (DLI) 至关重要,但增加了运营成本.
"转载"效应表明,植物可以在高DLI天后容忍低DLI天,从而潜在地节省能源.
了解DLI波动容忍度是优化照明策略和降低控制环境中的能源消耗的关键.

研究的目的:

为了确定菜植物是否可以在不影响生长的情况下经受连续多天的低DLI,然后是高DLI的一天.
计算不同照明处理的能源需求,并评估DLI转移效应带来的潜在节能.
评估DLI波动对各种植物生长参数的影响.

主要方法:

菜植物 (Lactuca sativa) 在生长室中接受了六次照明处理,其中包括一个高DLI日,其次是1-5个低DLI日.
处理模拟了不同的DLI波动,同时保持了15mol·m−2·d−1.1的恒定平均DLI.
测量了植物生长速度,生物质,叶子特性,光效率和色素含量.

主要成果:

仅在治疗中观察到干重的显著减少 (13%) 只有一个高DLI天,然后是一个低DLI天.
与预期相反,植物承受了连续多天的低DLI,在DLI高的一天之后.
没有观察到与超过一个低DLI日的治疗对增长的显著妥协.

结论:

菜植物在高DLI期后表现出多天低DLI的弹性,这表明其耐受性范围比以前理解的更广泛.
可以利用DLI的转移效应来减少补充照明,从而在园艺中节省大量的能源和运营成本.
基于DLI波动的优化照明策略可以提高控制环境农业的经济可行性.

关键词:

这种植物叫做Lactuca sativa.每日光线不可分割的整体.能源的能量是能量的能量.灯光水平灯光水平补充灯光补充灯光

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