Night Interruption with Red and Far-Red Light Optimizes the Phytochemical Composition, Enhances Photosynthetic Efficiency, and Increases Biomass Partitioning in Italian Basil

被引:0
|
作者
Fallah, Soheil [1 ]
Aliniaeifard, Sasan [1 ,2 ]
Mehrjerdi, Mahboobeh Zare [1 ]
Mirzaei, Shima [1 ]
Gruda, Nazim S. [3 ]
机构
[1] Univ Tehran, Fac Agr Technol Aburaihan, Dept Hort, Photosynth Lab, Tehran 14395547, Iran
[2] Univ Tehran, Coll Agr & Nat Resources, Fac Agr Technol Aburaihan, Controlled Environm Agr Ctr CEAC, Tehran 14395547, Iran
[3] Univ Bonn, Inst Crop Sci & Resource Conservat INRES, Dept Hort Sci, D-53121 Bonn, Germany
来源
PLANTS-BASEL | 2024年 / 13卷 / 22期
基金
美国国家科学基金会;
关键词
phytochemical enhancement; light spectrum manipulation; biomass allocation; <italic>Ocimum basilicum</italic>; controlled environment agriculture; photosynthesis; ROSMARINIC ACID CONTENT; ADAPTATION STRATEGIES; ANTIOXIDANT ACTIVITY; PHENOLIC CONTENT; CLIMATE-CHANGE; LEAF LETTUCE; BLUE-LIGHT; GROWTH; CULTIVARS; MORPHOLOGY;
D O I
10.3390/plants13223145
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
Controlled environment agriculture is a promising solution to address climate change and resource limitations. Light, the primary energy source driving photosynthesis and regulating plant growth, is critical in optimizing produce quality. However, the impact of specific light spectra during night interruption on improving phytochemical content and produce quality remains underexplored. This study investigated the effects of red (peak wavelength at 660 nm) and far-red night interruption (peak wavelength at 730 nm) on photosynthetic efficiency, biomass distribution, and phytochemical production in Italian basil (Ocimum basilicum L.). Treatments included red light, far-red light, a combination of both, and a control without night interruption. Red light significantly increased chlorophyll a by 16.8%, chlorophyll b by 20.6%, and carotenoids by 11%, improving photosynthetic efficiency and nutritional quality. Red light also elevated anthocyanin levels by 15.5%, while far-red light promoted flavonoid production by 43.56%. Although red light enhanced biomass, the primary benefit was improved leaf quality, with more biomass directed to leaves over roots. Far-red light reduced transpiration, enhancing post-harvest water retention and shelf life. These findings demonstrate that red and far-red night interruption can optimize phytochemical content, produce quality, and post-harvest durability, offering valuable insights for controlled environment agriculture. Future research should focus on refining night interruption light strategies across a broader range of crops to enhance produce quality and shelf life in controlled environment agriculture.
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页数:18
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