Use of structurally-accurate 3D plant models for estimating light interception and photosynthesis of sweet pepper (Capsicum annuum) plants

Kim, Dongpil; Kang, Woo Hyun; Hwang, In Kyeom; Kim, Jae-Woo; Kim, Jin Hyun; Park, Kyoung Sub; Son, Jung Eek

doi:10.1016/j.compag.2020.105689

Cited by 35 publications

(24 citation statements)

References 48 publications

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“…Even if the PLD and lighting distance are same, the more light is received when the light is incident perpendicular to the leaf surface. In leaves with high curvature, the difference in light interception according to the incident light angle is more noticeable [ 28 ]. Therefore, the upper leaves with high curvature and leaf inclination angle may receive much less light than expected.…”

Section: Discussionmentioning

confidence: 99%

“…The constructed 3D plant models were transferred to 3D CAD software (Solidworks, Dassault Systèmes, Vélizy-Villacoublay, France). The procedure from scan to simulation is described in Figure 6 b [ 28 ].…”

Section: Methodsmentioning

confidence: 99%

“…Recently, light interception analysis based on a 3D plant model has been conducted by ray tracing simulation [ 23 , 24 , 25 ]. 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 ].…”

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: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

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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“…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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“…Plant leaves show different 3D architecture during growth [ 1 ], and their spatial appearance also shows sensitive responses to environmental conditions, such as drought stress [ 2 , 3 , 4 ], cold stress [ 5 ], and light availability [ 6 ]. Additionally, the morphological features of leaf influences nutrients resorption [ 7 ] and canopy capacity, such as rainfall interception [ 8 , 9 ] and light interception [ 10 ]. Moreover, leaf morphological features can be utilized in the analysis of leaf shape diversity of a species [ 11 ] and crop breeding [ 12 ].…”

Section: Introductionmentioning

confidence: 99%

Parametric Surface Modelling for Tea Leaf Point Cloud Based on Non-Uniform Rational Basis Spline Technique

2021

Sensors

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Plant leaf 3D architecture changes during growth and shows sensitive response to environmental stresses. In recent years, acquisition and segmentation methods of leaf point cloud developed rapidly, but 3D modelling leaf point clouds has not gained much attention. In this study, a parametric surface modelling method was proposed for accurately fitting tea leaf point cloud. Firstly, principal component analysis was utilized to adjust posture and position of the point cloud. Then, the point cloud was sliced into multiple sections, and some sections were selected to generate a point set to be fitted (PSF). Finally, the PSF was fitted into non-uniform rational B-spline (NURBS) surface. Two methods were developed to generate the ordered PSF and the unordered PSF, respectively. The PSF was firstly fitted as B-spline surface and then was transformed to NURBS form by minimizing fitting error, which was solved by particle swarm optimization (PSO). The fitting error was specified as weighted sum of the root-mean-square error (RMSE) and the maximum value (MV) of Euclidean distances between fitted surface and a subset of the point cloud. The results showed that the proposed modelling method could be used even if the point cloud is largely simplified (RMSE < 1mm, MV < 2mm, without performing PSO). Future studies will model wider range of leaves as well as incomplete point cloud.

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Use of structurally-accurate 3D plant models for estimating light interception and photosynthesis of sweet pepper (Capsicum annuum) plants

Cited by 35 publications

References 48 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

Parametric Surface Modelling for Tea Leaf Point Cloud Based on Non-Uniform Rational Basis Spline Technique

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