Optimization of basil (Ocimum basilicum L.) production in LED light environments – a review

Sípos, László; Balázs, László; Székely, G.; Jung, András; Sárosi, Szilvia; Radácsi, Péter; Csambalik, László

doi:10.1016/j.scienta.2021.110486

Cited by 46 publications

(39 citation statements)

References 88 publications

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“…The high content of methyl chavicol in basil in the formulas F2 and F5 could be influenced by both lighting duration and illuminance. Siposs et al (2021) and Ahmed et al (2020) [ 30 , 31 ] suggested that the optimal lighting condition for basil is 16–18 h/day at PPFD 200–250 µmol·m −2 ·s −1 , which is comparable to the formulas F2 and F5 in the present study with supplemental lighting conditions of 6 h/day (total lighting duration of 20 h/day) at PPFD 120 µmol·m −2 ·s −1 . In the formulas F7 and F8, the highest methyl chavicol content in basil can be attributed, in addition to lighting duration and illuminance, which is 6 h/day (total lighting duration is 20 h/day) at PPFD 150–200 µmol·m − 2 ·s − 1 -equivalent to DLI 14.45–15.53 mol·m −2 ·d −1 , the composition of the light spectra has a higher ratio of B (43.5%).…”

Section: Resultssupporting

confidence: 83%

Effects of Supplemental Light Spectra on the Composition, Production and Antimicrobial Activity of Ocimum basilicum L. Essential Oil

Thuy³

et al. 2022

Molecules

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This study was performed to investigate the effects of different supplemental light spectra and doses (duration and illuminance) on the essential oil of basil (Ocimum basilicum L.) cultivated in the net-house in Vietnam during four months. Ten samples of basil aerial parts were hydrodistilled to obtain essential oils which had the average yields from 0.88 to 1.30% (v/w, dry). The oils analyzed using GC-FID and GC-MS showed that the main component was methyl chavicol (87.4–90.6%) with the highest values found in the oils of basil under lighting conditions of 6 h/day and 150–200 µmol·m−2·s−1. Additional lighting conditions caused the significant differences (p < 0.001) in basil biomass and oil production with the highest values found in the oils of basil under two conditions of (1) 71% Red: 20% Blue: 9.0% UVA in at 120 μmol·m−2·s−1 in 6 h/day and (2) 43.5% Red: 43.5% Blue: 8.0% Green: 5.0% Far-Red at 100 μmol·m−2·s−1 in 6 h/day. The oils of basil in some formulas showed weak inhibitory effects on only the Bacillus subtilis strain. Different light spectra affect the biomass and essential oil production of basil, as well as the concentrations of the major components in the oil.

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Section: Resultssupporting

confidence: 83%

Effects of Supplemental Light Spectra on the Composition, Production and Antimicrobial Activity of Ocimum basilicum L. Essential Oil

Thuy³

et al. 2022

Molecules

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“…Sweet basil ( Ocimum basilicum L.) plants were positively affected by green light when measuring plant biomass, plant dry matter, steam length, and number of leaves at 50 µmol m –2 s −1 79 . Moreover, concentration of volatile organic compounds were higher at 150–200 µmol m −2 s −1 of green light 80 , 81 .…”

Section: Discussionmentioning

confidence: 94%

Promotion of seed germination and early plant growth by KNO3 and light spectra in Ocimum tenuiflorum using a plant factory

Thongtip

Mosaleeyanon

Korinsak

et al. 2022

Sci Rep

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The plant factory with artificial light (PFAL) is a novel cultivation system of agriculture technology for crop production under controlled-environment conditions. However, there are a number of issues relating to low quality of seed germination and seedling vigor that lead to decreased crop yields. The present study investigates the optimal KNO3 concentration for seed germination, and the influence of different light spectra on early plant growth in holy basil (Ocimum tenuiflorum) under a PFAL system. Experiment 1 investigated the effects of KNO3 concentration (0, 0.2, 0.4 and 0.6%) on germination of seeds primed for 24 h under white Light emitting diodes (LED). Results show that sowing holy basil seeds in 0.4% KNO3 enhanced seed germination percentage (GP) and germination index (GI), while decreasing mean germination time (MGT). Experiment 2 investigated the effect of four light spectra on seed germination and early plant growth by sowing with 0 and 0.4% KNO3 and germinating for 15 days continuously under different monochromatic light settings: white, red, green and blue in PFAL. It was found that the green spectrum positively affected shoot and root length, and also decreased shortened MGT at 0 and 0.4% KNO3 when compared with other light treatments. Additionally, pre-cultivated seedlings under the green spectrum showed significant improvement in the early plant growth for all holy basil varieties at 15 days after transplanting by promoting stem length, stem diameter, plant width, fresh weights of shoot and root, and dry weights of shoot and root. These findings could be useful in developing seed priming and light treatments to enhance seed germination and seedling quality of holy basil resulting in increased crop production under PFAL.

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“…As we know, the phytochromes control numerous physiology process of plants and their two convertible forms P R and P FR absorbing range are depicted in Figure 11B. To establish a balanced R (red‐):FR (far‐red‐) light ratio is an essential prerequisite of a suitable PPE environment for plant growth 45,46 . Furthermore, the CIE chromaticity coordinates of the fabricated LED are (0.729, 0.271), as illustrated in Figure 11C.…”

Section: Resultsmentioning

confidence: 99%

“…To establish a balanced R (red-):FR (far-red-) light ratio is an essential prerequisite of a suitable PPE environment for plant growth. 45,46 Furthermore, the CIE chromaticity coordinates of the fabricated LED are (0.729, 0.271), as illustrated in Figure 11C.…”

Section: Potential Application In Plant Growth Led Lightingmentioning

confidence: 96%

Novel deep‐red‐emitting double‐perovskite type Ca₂ScNbO₆:Mn⁴⁺ phosphor: Structure, spectral study, and improvement by NaF flux

et al. 2022

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A novel deep‐red‐emitting phosphor Ca2ScNbO6:Mn4+ is prepared via a high‐temperature solid‐state reaction and its luminescent properties are systematically investigated. The results show that Mn4+‐activated Ca2ScNbO6 phosphors have broad absorption in ultraviolet region, and show bright deep‐red emission at 692 nm. The optimal doping concentration, crystal‐field strength, internal quantum efficiency, and mechanism of concentration and thermal quenching effects are discussed in detail. Moreover, NaF flux is screened out to improve both luminescent intensity and morphology of the phosphor. Finally, a red light‐emitting diode (LED) lamp is fabricated with as‐prepared Ca2ScNbO6:Mn4+ phosphors and a 365 nm LED chip. The electroluminescence spectra show a good overlapping with phytochrome PR and PFR absorbance. The results provided the as‐synthesized Ca2ScNbO6:Mn4+ phosphors a great potential in plant growth lighting.

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Optimization of basil (Ocimum basilicum L.) production in LED light environments – a review

Cited by 46 publications

References 88 publications

Effects of Supplemental Light Spectra on the Composition, Production and Antimicrobial Activity of Ocimum basilicum L. Essential Oil

Effects of Supplemental Light Spectra on the Composition, Production and Antimicrobial Activity of Ocimum basilicum L. Essential Oil

Promotion of seed germination and early plant growth by KNO3 and light spectra in Ocimum tenuiflorum using a plant factory

Novel deep‐red‐emitting double‐perovskite type Ca₂ScNbO₆:Mn⁴⁺ phosphor: Structure, spectral study, and improvement by NaF flux

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Optimization of basil (Ocimum basilicum L.) production in LED light environments – a review

Cited by 46 publications

References 88 publications

Effects of Supplemental Light Spectra on the Composition, Production and Antimicrobial Activity of Ocimum basilicum L. Essential Oil

Effects of Supplemental Light Spectra on the Composition, Production and Antimicrobial Activity of Ocimum basilicum L. Essential Oil

Promotion of seed germination and early plant growth by KNO3 and light spectra in Ocimum tenuiflorum using a plant factory

Novel deep‐red‐emitting double‐perovskite type Ca2ScNbO6:Mn4+ phosphor: Structure, spectral study, and improvement by NaF flux

Contact Info

Product

Resources

About

Novel deep‐red‐emitting double‐perovskite type Ca₂ScNbO₆:Mn⁴⁺ phosphor: Structure, spectral study, and improvement by NaF flux