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생육상과 온실에서 게발선인장 ‘핑크듀’의 엽상경별 CO2 흡수율 비교 KCI 등재

Comparing Net CO2 Uptake of Schlumbergera truncata ‘Pink Dew’ Phylloclades in a Growth Chamber and a Greenhouse

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생물환경조절학회지 (Journal of Bio-Environment Control)
한국생물환경조절학회 (The Korean Society For Bio-Environment Control)
초록

Crassulacean acid metabolism (CAM) plants use surplus CO2 generated by cooling and heating at night when ventilation is not needed in a greenhouse. Schlumbergera truncata ‘Pink Dew’ is a multi–flowering cactus that needs more phylloclades for high–quality production. This study examined photosynthetic characteristics by the phylloclade levels of S. truncata in a growth chamber and a greenhouse for use of night CO2 enrichment. The CO2 uptake rate of the S. truncata’s top phylloclade in a growth chamber exhibited a C3 pattern, and the second phylloclade exhibited a C3 –CAM pattern. The CO2 uptake rate of the top phylloclade in a greenhouse showed a negative value both day and night, but those of the second phylloclade exhibited a CAM pattern. The stomatal conductance and water–use efficiency (WUE) of S. truncata at both the top and second phylloclades were higher in a growth chamber than in a greenhouse. The WUE of S. truncata in a growth chamber and a greenhouse was higher at the second phylloclade, which is a CAM pattern compared with those of the top phylloclade. The daily total net CO2 uptake of S. truncata was higher in a growth chamber than in a greenhouse. The daily total net CO2 uptake of S. truncata at the second phylloclade had the highest value of 155 mmol·m–2·d–1 in a growth chamber. The night total CO2 uptake of S. truncata at the second phylloclade was 3–fold higher in a growth chamber than in a greenhouse. S. truncata’s second phylloclade exhibited a CAM pattern that uptake CO2 at night, and the second phylloclade, was more mature than the top phylloclade. A multi–flowering cactus S. truncata ‘Pink Dew’ efficiently uptake night surplus CO2 in the proper environmental condition with matured phylloclade.

목차
Abstract
서 론
재료 및 방법
    1. 식물재료
    2. 실험 환경 조건
    3. 광합성 측정 조건 및 조사 항목
    4. 통계분석
결과 및 고찰
적 요
사 사
Literature Cited
저자
  • 정서희(서울여자대학교 원예생명조경학과 대학원생) | Seo Hee Jung (Graduate Student, Department of Horticulture, Biotechnology and Landscape Architecture, Seoul Women's University)
  • 조아람(서울여자대학교 원예생명조경학과 박사후 연구원) | Ah Ram Cho (Postdoctoral Researcher, Department of Horticulture, Biotechnology and Landscape Architecture, Seoul Women's University)
  • 김윤진(서울여자대학교 원예생명조경학과 교수) | Yoon Jin Kim (Professor, Department of Horticulture, Biotechnology and Landscape Architecture, Seoul Women's University) Corresponding author