Influence of the Spectral Composition of Illuminating Light Sources on Biometric and Phytochemical Characteristics of <i>Ocimum basilicum</i> 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 stu...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-12-01
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| Series: | Photonics |
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| Online Access: | https://www.mdpi.com/2304-6732/10/12/1369 |
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| author | Mariya Degtereva Yevgeniy Levin Anastasia Gubina Aleksandr Degterev Ivan Lamkin Georgii Konoplev Sergey Tarasov Andrei Whaley Anastasiia Whaley Ivan Suloev Alexandra Danilova Konstantin Gusev Denis Maimistov |
| author_facet | Mariya Degtereva Yevgeniy Levin Anastasia Gubina Aleksandr Degterev Ivan Lamkin Georgii Konoplev Sergey Tarasov Andrei Whaley Anastasiia Whaley Ivan Suloev Alexandra Danilova Konstantin Gusev Denis Maimistov |
| author_sort | Mariya Degtereva |
| collection | DOAJ |
| description | 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 (<i>Ocimum basilicum</i> 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<sup>−2</sup>∙s<sup>−1</sup> 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. |
| first_indexed | 2024-03-08T20:25:58Z |
| format | Article |
| id | doaj.art-5972111dcc1543de81c58ce2d696760c |
| institution | Directory Open Access Journal |
| issn | 2304-6732 |
| language | English |
| last_indexed | 2024-03-08T20:25:58Z |
| publishDate | 2023-12-01 |
| publisher | MDPI AG |
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| series | Photonics |
| spelling | doaj.art-5972111dcc1543de81c58ce2d696760c2023-12-22T14:32:57ZengMDPI AGPhotonics2304-67322023-12-011012136910.3390/photonics10121369Influence of the Spectral Composition of Illuminating Light Sources on Biometric and Phytochemical Characteristics of <i>Ocimum basilicum</i> L.Mariya Degtereva0Yevgeniy Levin1Anastasia Gubina2Aleksandr Degterev3Ivan Lamkin4Georgii Konoplev5Sergey Tarasov6Andrei Whaley7Anastasiia Whaley8Ivan Suloev9Alexandra Danilova10Konstantin Gusev11Denis Maimistov12Department of Photonics, Saint Petersburg Electrotechnical University “LETI”, Saint Petersburg 197022, RussiaDepartment of Photonics, Saint Petersburg Electrotechnical University “LETI”, Saint Petersburg 197022, RussiaDepartment of Photonics, Saint Petersburg Electrotechnical University “LETI”, Saint Petersburg 197022, RussiaDepartment of Photonics, Saint Petersburg Electrotechnical University “LETI”, Saint Petersburg 197022, RussiaDepartment of Photonics, Saint Petersburg Electrotechnical University “LETI”, Saint Petersburg 197022, RussiaDepartment of Photonics, Saint Petersburg Electrotechnical University “LETI”, Saint Petersburg 197022, RussiaDepartment of Photonics, Saint Petersburg Electrotechnical University “LETI”, Saint Petersburg 197022, RussiaDepartment of Pharmacognosy, Saint Petersburg State Chemical Pharmaceutical University, Saint Petersburg 197376, RussiaDepartment of Pharmacognosy, Saint Petersburg State Chemical Pharmaceutical University, Saint Petersburg 197376, RussiaDepartment of Pharmacognosy, Saint Petersburg State Chemical Pharmaceutical University, Saint Petersburg 197376, RussiaLaboratory of Additive Technologies, Saint Petersburg State Chemical Pharmaceutical University, Saint Petersburg 197376, RussiaLaboratory of Additive Technologies, Saint Petersburg State Chemical Pharmaceutical University, Saint Petersburg 197376, RussiaLaboratory of Additive Technologies, Saint Petersburg State Chemical Pharmaceutical University, Saint Petersburg 197376, RussiaPrecise 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 (<i>Ocimum basilicum</i> 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<sup>−2</sup>∙s<sup>−1</sup> 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.https://www.mdpi.com/2304-6732/10/12/1369greenhouse lightingbasil plantlight-emitting diodehigh-pressure sodium lampfluorescent lampflavonoids |
| spellingShingle | Mariya Degtereva Yevgeniy Levin Anastasia Gubina Aleksandr Degterev Ivan Lamkin Georgii Konoplev Sergey Tarasov Andrei Whaley Anastasiia Whaley Ivan Suloev Alexandra Danilova Konstantin Gusev Denis Maimistov Influence of the Spectral Composition of Illuminating Light Sources on Biometric and Phytochemical Characteristics of <i>Ocimum basilicum</i> L. Photonics greenhouse lighting basil plant light-emitting diode high-pressure sodium lamp fluorescent lamp flavonoids |
| title | Influence of the Spectral Composition of Illuminating Light Sources on Biometric and Phytochemical Characteristics of <i>Ocimum basilicum</i> L. |
| title_full | Influence of the Spectral Composition of Illuminating Light Sources on Biometric and Phytochemical Characteristics of <i>Ocimum basilicum</i> L. |
| title_fullStr | Influence of the Spectral Composition of Illuminating Light Sources on Biometric and Phytochemical Characteristics of <i>Ocimum basilicum</i> L. |
| title_full_unstemmed | Influence of the Spectral Composition of Illuminating Light Sources on Biometric and Phytochemical Characteristics of <i>Ocimum basilicum</i> L. |
| title_short | Influence of the Spectral Composition of Illuminating Light Sources on Biometric and Phytochemical Characteristics of <i>Ocimum basilicum</i> L. |
| title_sort | influence of the spectral composition of illuminating light sources on biometric and phytochemical characteristics of i ocimum basilicum i l |
| topic | greenhouse lighting basil plant light-emitting diode high-pressure sodium lamp fluorescent lamp flavonoids |
| url | https://www.mdpi.com/2304-6732/10/12/1369 |
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