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논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2021.10
- 수록면
- 59 - 60 (2page)
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In greenhouses, sweet pepper plants are vertically trellised to maximize yield, and fruit development is adjusted to trained patterns of main stems. Restricted light capture is a limiting factor in canopy photosynthesis, resulting in small fruit sizes and low yields. To compensate for the canopy light deficiency due to increased stem densities, supplemental lighting has been applied to greenhouse cultivation. Accurate estimation of canopy light interception and photosynthesis is needed to investigate the effect of supplemental lighting on high-stem density canopies. The objective of this study was to evaluate the effect of supplemental lighting on the growth and fruit yield of greenhouse sweet peppers trained with 2 and 3 stems by using 3D plant models and ray-tracing simulations. The seedlings were transplanted at a planting density of 3.2 plants·m<SUP>-2</SUP> on Oct. 26, 2020 in a Venlo-type greenhouse at the Protected Horticulture Research Institute, Haman, Korea. Supplemental lighting started from Dec. 1, 2020 to May 25, 2021 using high-pressure sodium (HPS) lamps of 180 μmol·m<SUP>-2</SUP>·s<SUP>-1</SUP> for 16-hour photoperiod. 3D plants models were constructed using a 3D scanner at 30, 90 and 140 days ... 전체 초록 보기
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