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Horticulturae
Special Issues
Use and Management of Artificial Light in Horticultural Plants
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Use and Management of Artificial Light in Horticultural Plants

A special issue of Horticulturae (ISSN 2311-7524). This special issue belongs to the section "Protected Culture".

Deadline for manuscript submissions: closed (20 July 2024) | Viewed by 9114

Special Issue Editors

Dr. Hao Wei

E-Mail Website
Guest Editor
School of Life Sciences, Qufu Normal University, Qufu 273165, China
Interests: supplementary lighting; spectrum; flowering control; control of morphophysiology
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Byoung Ryong Jeong

E-Mail Website
Guest Editor
Department of Horticulture, Division of Applied Life Science, Graduate School, Gyeongsang National University (GNU), Jinju 52828, Republic of Korea
Interests: floriculture; transplants (micropropagated and plug); silicon in horticulture; plant factory; protected horticulture; hydroponics
Special Issues, Collections and Topics in MDPI journals
Dr. Jiangtao Hu

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Guest Editor
Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences, Chengdu 610213, China
Interests: vertical farming; plant factory; LED lighting; plant nutrition; fertilizers; organic agriculture
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Light plays a vital role in the growth and development of plants. In modern horticultural crop production, growers are increasingly using artificial light to regulate the growth environment of crops, thus, avoiding the adverse effects on crop production caused by the unpredictability of natural light.

Currently, artificial light sources are extensively employed. They can be used as the sole source of illumination in vertical farming to optimally utilize the cultivation space, such as in plant factories, artificial climate chambers, and tissue culture rooms. In regions where there is an inadequate amount of natural light or during winter or rainy seasons with a short period of daylight, artificial light sources can make up for the deficiency of natural light and supplement light for crops, thus, enhancing crop yield or regulating differentiation and morphophysiology.

The application of artificial lights in horticultural crops and the related mechanisms of light-regulated plant physiological responses are an essential part of realizing intelligent agriculture. To this end, it is necessary to gain a thorough understanding of the effects of light quality, light intensity, light duration, and light angle on crops and explore the mechanisms of molecular regulation involved.

This Special Issue welcomes all studies related to the application of artificial light in horticultural crops and the mechanisms associated with light-mediated regulation of plant physiological responses.

Dr. Hao Wei
Prof. Dr. Byoung Ryong Jeong
Dr. Jiangtao Hu
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Horticulturae is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2200 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • artificial light
  • horticultural crops
  • supplementary lighting
  • light quality
  • light intensity
  • light duration
  • lighting direction

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Published Papers (3 papers)

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Research

26 pages, 5557 KiB  
Article
Changes in Spectral Reflectance, Photosynthetic Performance, Chlorophyll Fluorescence, and Growth of Mini Green Romaine Lettuce According to Various Light Qualities in Indoor Cultivation
by Joo Hwan Lee, Yong Beom Kwon, In-Lee Choi, Hyuk Sung Yoon, Jidong Kim, Yongduk Kim and Ho-Min Kang
Horticulturae 2024, 10(8), 860; https://doi.org/10.3390/horticulturae10080860 - 14 Aug 2024
Cited by 2 | Viewed by 1089
Abstract
Light quality can be stated to be the identity of an artificial light source, and although the response of light quality may vary depending on the crop, the effect is clearly visible and can produce various results depending on the combination of an [...] Read more.
Light quality can be stated to be the identity of an artificial light source, and although the response of light quality may vary depending on the crop, the effect is clearly visible and can produce various results depending on the combination of an artificial light source. This study investigated the spectral reflectance, photosynthetic performance, and chlorophyll fluorescence of mini green romaine lettuce based on light quality. Most parameters related to spectral reflectance showed the best results under blue light, and photosynthetic performance was more effective with mixed light than with single-colored light, among which blue + red (BR)-LED was the most suitable. Red light was ineffective, showing mostly low results in parameters of spectral reflectance and photosynthetic performance. In the case of chlorophyll fluorescence, the light quality influenced photomorphogenesis, resulting in increased leaf length and width with R- and quantum dot (QD)-LED, which expanded the leaf area and allowed for more external light to be captured (ABS/RC and TRo/RC). However, the ratio of electronized energy (ETo/RC) was low, and the amount of energy dissipated as heat (DIo/RC) was high. Consequently, the degree of electron acceptor reduction and overall photosynthetic performance (PIABS and PItotal) were lower compared to other light qualities. Additionally, the contrasting results of QD-LED and BR-LED were attributed to the form of red light and the presence or absence of far-red light when comparing spectra. Principal component analysis also clearly distinguished light qualities for photosynthesis and growth. Growth was increased by red (R)- and QD-LED, while photosynthetic performance was increased by BR- and blue (B)-LED. Full article
(This article belongs to the Special Issue Use and Management of Artificial Light in Horticultural Plants)
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12 pages, 2148 KiB  
Article
The Influence of the Spectral Composition and Light Intensity on the Morphological and Biochemical Parameters of Spinach (Spinacia oleracea L.) in Vertical Farming
by Natalya A. Semenova, Yuri A. Proshkin, Alexandr A. Smirnov, Alexey S. Dorokhov, Alina S. Ivanitskikh, Dmitry A. Burynin, Artem A. Dorokhov, Nadezhda I. Uyutova and Narek O. Chilingaryan
Horticulturae 2023, 9(10), 1130; https://doi.org/10.3390/horticulturae9101130 - 13 Oct 2023
Cited by 1 | Viewed by 3624
Abstract
The present study has been carried out to determine the effects of four different illuminators with red, far-red, blue, and white light-emitting diodes (LEDs) on the growth, morphology, pigment composition, and chlorophyll fluorescence of spinach (Spinacia oleracea L.) of the ‘Zhirnolistny’ cultivar. [...] Read more.
The present study has been carried out to determine the effects of four different illuminators with red, far-red, blue, and white light-emitting diodes (LEDs) on the growth, morphology, pigment composition, and chlorophyll fluorescence of spinach (Spinacia oleracea L.) of the ‘Zhirnolistny’ cultivar. We investigated these variants in two photon flux densities, 400–800 nm (PFD) 120 µmol m−2 s−1 and 180 µmol m−2 s−1. The studies were carried out in a climate chamber. Plant measurements were carried out on the 30th and 45th days of cultivation. The results showed that during the period of active growth, on the 30th day, spinach plants accumulated 2.6 and 2.4 times more fresh weight in the variant with a higher PFD (180 µmol m−2 s−1). At the end of the growing season, only a decrease in PFD had an effect on the fresh and dry weight of plants. The highest concentration of chlorophyll on both the 30th and 45th days of vegetation was found when spinach plants were grown under red-blue (RB) LEDs in a spectrum proportion of R70:B30. It was found that the variants had a higher proportion of green radiation in the spectrum of illuminators with PFD 180 µmol m−2 s−1, and the nitrate content in spinach was slightly lower than in other variants. Full article
(This article belongs to the Special Issue Use and Management of Artificial Light in Horticultural Plants)
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12 pages, 1225 KiB  
Article
Temperature and Light Spectrum Differently Affect Growth, Morphology, and Leaf Mineral Content of Two Indoor-Grown Leafy Vegetables
by Yun Kong, Joseph Masabni and Genhua Niu
Horticulturae 2023, 9(3), 331; https://doi.org/10.3390/horticulturae9030331 - 2 Mar 2023
Cited by 4 | Viewed by 3480
Abstract
This study was carried out to determine the effect of three commercial LEDs of different spectra with or without far red (FR) photons on the growth, morphology, and mineral content of two leafy vegetables under two temperatures (30 °C and 21 °C). The [...] Read more.
This study was carried out to determine the effect of three commercial LEDs of different spectra with or without far red (FR) photons on the growth, morphology, and mineral content of two leafy vegetables under two temperatures (30 °C and 21 °C). The two leafy greens were ‘Cegolaine’ lettuce (Lactuca sativa) and ‘Petite Star’ pak choy (Brassica rapa subsp. Chinensis). In each temperature, there were three light spectra: red and blue LED, and white LED with or without FR. All spectra of lights were adjusted to a total photon flux density of 250 μmol m−2 s−1 at the top of the plant canopy. Results indicated that temperature treatment had a significant influence on most measured parameters. When temperature increased from 21 to 30 °C, lettuce shoot fresh and dry weights increased by 30% and 53%, respectively, while those of pak choy increased by approximately 22%. For both species, plants at high temperature had a larger leaf area but lower mineral content compared to those at low temperature. The spectrum treatment had a minor or no effect on the measured traits. In conclusion, the 5% FR did not impact the yield or biomass of either crop and the plant responses to spectra varied with temperature and species. The two temperatures resulted in significant differences in growth, morphology, and leaf mineral content in both species. Full article
(This article belongs to the Special Issue Use and Management of Artificial Light in Horticultural Plants)
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