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논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2021.5
- 수록면
- 49 - 49 (1page)
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In greenhouses, the higher plant density, the more shaded adjacent plants cause insufficient sunlight in the canopy. As a countermeasure, inter-lighting has been introduced to compensate the lack of light in the middle and bottom part of the canopy. However, most of researches focused on growth and yield, not water use efficiency (WUE). The objective of this study was to quantify the improvement of photosynthesis and WUE of sweet peppers by supplemental inter-lighting using red and blue LEDs. The inter-lighting started at 34 days after transplanting (DAT). The ratio red and blue LEDs in PPFD was 8:2, and the total PPFD of inter-lighting sources was adjusted to 71 µm ol·m<sup>-2</sup>·s<sup>-1</sup> at a 20 cm distance. Two inter-lighting treatments were applied: Natural light (Control) and red + blue (RB). To quantify the transpiration from the plants, the amount of daily transpiration was measured by subtracting the drainage from th ... 전체 초록 보기
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