间歇补充远红光加速了叶子和芽的发育,增加了生菜的产量
Yanke Liu1,2, Rong Ye1,2, Xinying Gao1,2
1Plant Factory R&D Center, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China.
Plants (Basel, Switzerland)
|January 11, 2025
概括
间歇性远红光补充,特别是每30分钟间隔一次,显著提高了植物工厂的生菜产量和叶子发育. 这种优化的光线策略通过影响激素信号通路来增强植物生长.
科学领域:
- 植物科学 植物科学
- 控制环境 农业 农业
- 摄影生物学 摄影生物学
背景情况:
- 远红光补充剂可以通过诱导避阴综合征来增加受控环境中的作物产量.
- 与持续暴露相比,间歇地应用远红色光线可能会提供优越的产量增强.
研究的目的:
- 为了研究不同深红色光强度和间歇性暴露时间对植物工厂生长的生菜生长的影响.
- 确定最优的间歇性远红光策略,以最大限度地提高生菜产量和质量.
主要方法:
- 菜 (Lactuca sativa) 在植物工厂中在受控条件下生长,常常使用红光和不同间歇性远红光处理 (5,15,30,45分钟间隔).
- 进行了植物激素含量,基因表达 (激素代谢和运输) 和转录组分析.
- 使用了权重基因共同表达网络分析和动态表达分析.
主要成果:
- 与恒定的远红光相比,间歇性远红光补充的30分钟间隔增加了11.7%的生菜产量,叶子和芽的数量增加了2.66%.
- 间歇性远红光增强了远红光治疗的整体有效性,影响了与信号和激素代谢相关的基因表达.
- 对于远红色光感应和激素通路的最佳节律基因表达发生在30分钟间歇性的远红光下.
结论:
- 间歇性远红光补充,特别是在30分钟间隔,对于提高生长和植物工厂的产量是非常有效的.
- 这种光线策略优化了远红色光信号,激素代谢和运输,从而加速了植物的发育.
- 这些发现为优化控制环境农业中的照明策略提供了基础,以改善作物生产.
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