光的频率波动影响番茄形态和生理学只有在极端的幅度
J Anja Dieleman1, Guido van Steekelenburg1, Kees Weerheim1
1Wageningen University and Research, Business Unit Greenhouse Horticulture, Wageningen, Netherlands.
Frontiers in plant science
|July 23, 2025
概括
植物生长受到极端的,快速的光波动的负面影响. 然而,番茄植物可以保持生长,如果持续提供最低光线水平,即使强度波动.
科学领域:
- 植物生理学 植物生理学
- 园艺科学 园艺科学
- 整合可再生能源的整合
背景情况:
- 由于太阳能和风能等可再生能源,电价波动很大.
- 波动的照明模式可能为控制环境农业提供经济效益.
- 关于植物对动态光线条件的反应的研究有限.
研究的目的:
- 研究波动光强对番茄植物生物质,形态和生理学的影响.
- 要确定波动频率或振幅是否是这些效应的主要驱动因素.
主要方法:
- 番茄植物是在受控条件下种植的,光的波动幅度各不相同 (例如,200/0 μmol m-2 s-1) 和频率 (从几分钟到几个小时).
- 测量包括树枝生物质,茎长,叶绿素含量,光吸收,净光合作用和线性电子传输速率.
主要成果:
- 极端的光波动 (0/200 μmol m−2 s−1) 显著减少了芽生长生物质,茎长,叶绿素和光吸收,更高的频率会造成更严重的影响.
- 在分钟频率下175/25和125/75μmol m−2 s−1之间的波动没有显著影响生长.
- 与恒定的光线相比,在某些波动条件下,净光合作用和线性电子传输速率减少.
结论:
- 光的波动频率主要影响极端振幅的植物发育.
- 保持最低光线水平可以使作物适应波动的光线,支持生长和发育.
- 这些发现对于优化利用可变能源的农业照明策略至关重要.
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