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Kim, Dongpil; Kang, Woo Hyun; Hwang, Inha; Kim, Jaewoo; Kim, Jin Hyun; Park, Kyoung Sub; Son, Jung Eek
Computers and electronics in agriculture, October 2020, 2020-10-00, 20201001, Letnik: 177Journal Article
•3D-scanned plant models with different structural accuracies were analyzed.•Light interception of the models with a low accuracy were overestimated.•3D-scanned reconstruction can contribute to accurate analysis of photosynthesis. Plant structure is a significant factor for influencing the light interception and photosynthesis of plants. The light interception on the plant surface can be analyzed by three-dimensional (3D) plant model and optical simulation, but its accuracy is directly affected by the structural accuracy of the 3D model. This study aims to analyze and compare the effect of the accuracy of 3D structural models on light interception and photosynthesis. 3D-scanned plant models with different structural accuracies were constructed, and the light interception and photosynthetic rate were analyzed at single leaf and whole-plant scales. When using a low accuracy model that lacked the fine structural details of the plant, it was overestimated in light interception and photosynthetic rate compared to the 3D-scanned model that has high structural accuracy. At the single leaf scale, the light interception was higher in the low-accuracy model than that in the 3D-scanned model due to self-shadings from higher curvature in the leaf surface. At the whole-plant scale, the light interception and the subsequent photosynthetic rate in the low-accuracy model were 18% and 45 to 58% higher than those in the 3D-scanned model at light intensities of 700–2000 μmol m−2 s−1 at the upper canopy. The 3D-scanned plant model could accurately estimate the light interception and photosynthetic rate of the plants through optical simulation. The presented methodology can contribute to accurate analyses of plant light environment, plant physiological response, and plant growth modelling.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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