照明光源的光谱成分对欧芹生物计量学和植物化学特征的影响

IF 2.1 4区 物理与天体物理 Q2 OPTICS Photonics Pub Date : 2023-12-13 DOI:10.3390/photonics10121369
Mariya Degtereva, Yevgeniy Levin, Anastasia Gubina, Aleksandr E. Degterev, Ivan Lamkin, G. Konoplev, Sergey Tarasov, Andrei Whaley, A. Whaley, I. Suloev, A. Danilova, K. Gusev, D. Maimistov
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引用次数: 0

摘要

根据基本光生理过程精确调整温室照明光谱,可以有效地定向刺激植物生长和发育。最佳光谱取决于植物种类和生长发育阶段,可根据经验进行评估。本研究的目的是确定 LED 照明光谱,与更传统的照明光源相比,该光谱能显著提高水培罗勒植物(Ocimum basilicum L.)的生长速度和生物活性化合物的积累。使用了以下具有不同发射光谱的光源:400-800 纳米光谱范围内的 LED 灯(B:G:R 15%:5%:80%);高压钠灯(HPS)(B:G:R 5%:45%:50%);紧凑型荧光灯(B:G:R 20%:40%:40%);生长 LED 灯带(B:G:R 15%:40%:45%);白光 LED 灯(B:G:R 30%:45%:25%);颜色比例为 100%B 、75%B + 25%R、50%B + 50%R、25%B + 75%R、100%R 的定制 LED 照明装置,以及自然光。所有光源的光合光通量密度(PPFD)均为 150 μmol∙m-2∙s-1。实验可靠地证明,使用 LED 灯带作为照明设备,罗勒的产量比使用 HPS 时提高了 112%;LED 灯带的蒸腾系数比 HPS 低六倍。罗勒气生部分在生长第 30、50 和 70 天的黄酮类化合物含量比 HPS 高 3.2 倍;LED 灯带照明的代谢物组成也更均匀。
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Influence of the Spectral Composition of Illuminating Light Sources on Biometric and Phytochemical Characteristics of Ocimum basilicum L.
Precise adaptation of the greenhouse lighting spectrum to basic photophysiological processes can effectively and directionally stimulate plant growth and development. The optimal spectrum depends on the plant species and the stage of development and could be assessed empirically. The aim of this study is to determine the LED illumination spectrum that provides a significant improvement in the growth rate and accumulation of biologically active compounds for basil plants (Ocimum basilicum L.) under hydroponic cultivation compared to more traditional lighting sources. The following light sources with various emission spectra were used: an LED lamp within a spectral range of 400–800 nm (B:G:R 15%:5%:80%); a high-pressure sodium lamp (HPS) (B:G:R 5%:45%:50%); a compact fluorescent lamp (B:G:R 20%:40%:40%); a grow LED strip (B:G:R 15%:40%:45%); a white LED lamp (B:G:R 30%:45%:25%); a customized LED lighting setup in color ratios 100%B, 75%B + 25%R, 50%B + 50%R, 25%B + 75%R, 100%R, and natural lighting. A photosynthetic photon flux density (PPFD) of 150 μmol∙m−2∙s−1 was provided with all the sources. It was demonstrated reliably that employing the LED strip as an illumination device gives a 112% increase in basil plant yield compared to the HPS; the transpiration coefficient for the LED strip is six times lower than for the HPS. The content of flavonoids in the basil aerial parts on the 30th, 50th, and 70th days of development is 3.2 times higher than for the HPS; the metabolite composition is also more uniform for LED strip lighting.
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来源期刊
Photonics
Photonics Physics and Astronomy-Instrumentation
CiteScore
2.60
自引率
20.80%
发文量
817
审稿时长
8 weeks
期刊介绍: Photonics (ISSN 2304-6732) aims at a fast turn around time for peer-reviewing manuscripts and producing accepted articles. The online-only and open access nature of the journal will allow for a speedy and wide circulation of your research as well as review articles. We aim at establishing Photonics as a leading venue for publishing high impact fundamental research but also applications of optics and photonics. The journal particularly welcomes both theoretical (simulation) and experimental research. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. There is no restriction on the length of the papers. The full experimental details must be provided so that the results can be reproduced. Electronic files and software regarding the full details of the calculation and experimental procedure, if unable to be published in a normal way, can be deposited as supplementary material.
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