서울대학교 · Agricultural and Biological Sciences
Jung Eek Son 교수의 연구실은 식물 공장 및 옥외·온실 재배 환경에서의 광합성 효율과 생장 최적화를 목표로 하며, 3차원 식물 모델링과 레이 트레이싱 시뮬레이션을 기반으로 광선 흡수 및 광합성 분포를 정량적으로 분석합니다. 특히 빛의 스펙트럼, 수분 스트레스, 자외선-B 조사 등 환경 스트레스 요인이 식물의 2차 대사물질 축적과 품질에 미치는 영향을 연구하고 있으며, 이를 바탕으로 자동 제어 시스템과 인공지능 기반 예측 모델을 개발하고 있습니다. 이는 고밀도 식물공장에서의 자원 효율성 향상과 기능성 식품 생산에 기여합니다.
표시된 성과는 수집된 데이터 기준으로 산출되며, 일부 차이가 있을 수 있습니다.
Canopy photosynthesis has typically been estimated using mathematical models that have the following assumptions: the light interception inside the canopy exponentially declines with the canopy depth, and the photosynthetic capacity is affected by light interception as a result of acclimation. However, in actual situations, light interception in the canopy is quite heterogenous depending on environmental factors such as the location, microclimate, leaf area index, and canopy architecture. It is
Supplemental interlighting is commonly used in modern greenhouses to improve light deficiency, but the light spectrum affects fruit quality and color change. This study aimed to analyze the effect of interlighting with red, blue, and additional far-red light on the fruit qualities and carotenoid contents of red and yellow sweet peppers (<i>Capsicum annuum</i> L.). Three light treatments were applied: natural light (NL), NL with red + blue LED interlighting (71 μmol m<sup>-2</sup> s<sup>-1</sup>)
In existing closed-loop soilless cultures, nutrient solutions are controlled by the electrical conductivity (EC) of the solution. However, the EC of nutrient solutions is affected by both growth environments and crop growth, so it is hard to predict the EC of nutrient solution. The objective of this study was to predict the EC of root-zone nutrient solutions in closed-loop soilless cultures using recurrent neural network (RNN). In a test greenhouse with sweet peppers (<i>Capsicum annuum</i> L.),
In plant factories, light is fully controllable for crop production but involves a cost. For efficient lighting, light use efficiency (LUE) should be considered as part of light environment design. The objectives of this study were to evaluate and interpret the light interception, photosynthetic rate, and LUE of lettuces under electrical lights using ray-tracing simulation. The crop architecture model was constructed by 3D scanning, and ray-tracing simulation was used to interpret light intercep
Photosynthesis is an important physiological response for determination of CO₂ fertilization in greenhouses and estimation of crop growth. In order to estimate the whole plant photosynthetic rate, it is necessary to investigate how light interception by crops changes with environmental and morphological factors. The objectives of this study were to analyze plant light interception using a three-dimensional (3D) plant model and ray-tracing, determine the spatial distribution of the photosynthetic
Among abiotic stresses, both drought and UV-B radiation effectively trigger the accumulation of secondary metabolites, and can be widely applied in plant factories. The objectives of this study were to investigate antioxidant accumulation under drought stress alone, or in combination with UV-B radiation near harvest, and to determine an optimal treatment time for maximum antioxidant production. Kale (<i>Brassica oleracea</i> L. var. <i>acephala</i>) plants were grown in a plant factory and harve
