Interpretation and Evaluation of Electrical Lighting in Plant Factories with Ray-Tracing Simulation and 3D Plant Modeling

Kim, Jaewoo; Kang, Woo Hyun; Son, Jung Eek

doi:10.3390/agronomy10101545

Cited by 19 publications

(23 citation statements)

References 33 publications

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“…In an empty growth chambers, the light intensity at a distance of 15 cm from the LED modules was lower than that at the longer distance (>30 cm) [30]. With plants in the LED growth chamber, the total light interception of lettuce increased as the lighting distance increased up to 30 cm, i.e., c. 20 cm above the plant [31]. That is, when an artificial light source for plant cultivation such as LED is closely irradiated, the plant can receive less light.…”

Section: Leaf Morphology Optical Property and Uv-b Radiation Intercementioning

confidence: 89%

“…With plants in the LED growth chamber, the total light interception of lettuce increased as the lighting distance increased up to 30 cm, i.e., c . 20 cm above the plant [ 31 ]. That is, when an artificial light source for plant cultivation such as LED is closely irradiated, the plant can receive less light.…”

Section: Discussionmentioning

confidence: 99%

“…Beyond simplified or virtual plant models, 3D-scanned plant models are sophisticated enough to be used for extracting morphological traits and plant architecture such as leaf width and plant height [ 26 , 27 ] and for estimating the physiological response of plants such as leaf or canopy photosynthesis [ 28 , 29 ]. In particular, 3D-scanned plant models and ray tracing simulations can be applied to analyze the light environment and light interception of leafy vegetables grown under LEDs in controlled environments [ 30 , 31 ]. Thus, the techniques allow quantification of the UV-B light absorbed by each leaf at the whole-plant level.…”

Section: Introductionmentioning

confidence: 99%

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Quantitative Analysis of UV-B Radiation Interception in 3D Plant Structures and Intraindividual Distribution of Phenolic Contents

Yoon

Kim

Jae-Woo

et al. 2021

IJMS

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Ultraviolet-B (UV-B) acts as a regulatory stimulus, inducing the dose-dependent biosynthesis of phenolic compounds such as flavonoids at the leaf level. However, the heterogeneity of biosynthesis activation generated within a whole plant is not fully understood until now and cannot be interpreted without quantification of UV-B radiation interception. In this study, we analyzed the spatial UV-B radiation interception of kales (Brassica oleracea L. var. Acephala) grown under supplemental UV-B LED using ray-tracing simulation with 3-dimension-scanned models and leaf optical properties. The UV-B-induced phenolic compounds and flavonoids accumulated more, with higher UV-B interception and younger leaves. To distinguish the effects of UV-B energy and leaf developmental age, the contents were regressed separately and simultaneously. The effect of intercepted UV-B on flavonoid content was 4.9-fold that of leaf age, but the effects on phenolic compound biosynthesis were similar. This study confirmed the feasibility and relevance of UV-B radiation interception analysis and paves the way to explore the physical and physiological base determining the intraindividual distribution of phenolic compound in controlled environments.

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Section: Leaf Morphology Optical Property and Uv-b Radiation Intercementioning

confidence: 89%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Quantitative Analysis of UV-B Radiation Interception in 3D Plant Structures and Intraindividual Distribution of Phenolic Contents

Yoon

Kim

Jae-Woo

et al. 2021

IJMS

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“…Considering the three-dimensional (3D) plant structure, bioactive compounds at each leaf were determined with UV-B radiation interception as well as with leaf age in kale (Yoon et al, 2021). As plant growth progresses, changes in lighting distance (Kim et al, 2020b) or planting density (Portes and Melo, 2014;Xue et al, 2015) can affect the spatial distribution of light interception for whole plants, which is directly related to plant growth and biomass production. Accumulation of bioactive compounds is regulated by the overall developmental stages of whole plants as well as by the specific developmental state of each leaf (Lois, 1994).…”

Section: Introductionmentioning

confidence: 99%

“…Recently, the light distribution for a whole plant was quantitatively analyzed using 3D plant models and ray-tracing simulation analysis ( Kim et al, 2020a , b ). However, spatial analysis of light distribution has not been applied to UV-B radiation.…”

Section: Introductionmentioning

confidence: 99%

Quantitative Analysis of UV-B Radiation Interception and Bioactive Compound Contents in Kale by Leaf Position According to Growth Progress

Yoon

Kim

et al. 2021

Front. Plant Sci.

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UV-B (280–315 nm) radiation has been used as an effective tool to improve bioactive compound contents in controlled environments, such as plant factories. However, plant structure changes with growth progress induce different positional distributions of UV-B radiation interception, which cause difficulty in accurately evaluating the effects of UV-B on biosynthesis of bioactive compounds. The objective of this study was to quantitatively analyze the positional distributions of UV-B radiation interception and bioactive compound contents of kales (Brassica oleracea L. var. acephala) with growth progress and their relationships. Short-term moderate UV-B levels did not affect the plant growth and photosynthetic parameters. Spatial UV-B radiation interception was analyzed quantitatively by using 3D-scanned plant models and ray-tracing simulations. As growth progressed, the differences in absorbed UV-B energy between leaf positions were more pronounced. The concentrations of total phenolic compound (TPC) and total flavonoid compound (TFC) were higher with more cumulative absorbed UV-B energy. The cumulative UV energy yields for TFC were highest for the upper leaves of the older plants, while those for TPC were highest in the middle leaves of the younger plants. Despite the same UV-B levels, the UV-B radiation interception and UV-B susceptibility in the plants varied with leaf position and growth stage, which induced the different biosynthesis of TFC and TPC. This attempt to quantify the relationship between UV-B radiation interception and bioactive compound contents will contribute to the estimation and production of bioactive compounds in plant factories.

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Analysis of global research on vegetable seedlings and transplants and their impacts on product quality

Gallegos‐Cedillo,

Nájera,

Signore

et al. 2024

J Sci Food Agric

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BACKGROUNDPrevious research has established that using high‐quality planting material during the early phase of vegetable production significantly impacts success and efficiency, leading to improved crop performance, faster time to harvest and better profitability. In the present study, we conducted a global analysis of vegetable seedlings and transplants, providing a comprehensive overview of research trends in seedling and transplant production to enhance the nutritional quality of vegetables.RESULTSThe analysis involved reviewing and quantitatively analysing 762 articles and 5248 keywords from the Scopus database from 1971 to 2022. We used statistical, mathematical and clustering tools to analyse bibliometrics and visualise the most relevant research topics. A visualisation map was generated to identify the evolution of keywords used in the articles, resulting in five clusters for further analysis. Our study highlights the importance of the size of seed trays for the type of crop, the mechanical seeder used and the greenhouse facilities to produce desirable transplants. We identified grafting and light‐emitting diode (LED) lighting technology as rapidly expanding technologies in vegetable seedlings and transplant production used to promote plant qualitative profile.CONCLUSIONThere is a need for sustainable growing media to optimise resources and reduce input use. Thus, applying grafting, LED artificial lighting, biostimulants, biofortification and plant growth‐promoting microorganisms in seedling production can enhance efficiency and promote sustainable vegetable nutritional quality by accumulating biocompounds. Further research is needed to explore the working mechanisms and devise novel strategies to enhance the product quality of vegetables, commencing from the early stages of food production. © 2024 The Authors. Journal of The Science of Food and Agriculture published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.

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Interpretation and Evaluation of Electrical Lighting in Plant Factories with Ray-Tracing Simulation and 3D Plant Modeling

Cited by 19 publications

References 33 publications

Quantitative Analysis of UV-B Radiation Interception in 3D Plant Structures and Intraindividual Distribution of Phenolic Contents

Quantitative Analysis of UV-B Radiation Interception in 3D Plant Structures and Intraindividual Distribution of Phenolic Contents

Quantitative Analysis of UV-B Radiation Interception and Bioactive Compound Contents in Kale by Leaf Position According to Growth Progress

Analysis of global research on vegetable seedlings and transplants and their impacts on product quality

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