Journal of Bio-Environment Control (생물환경조절학회지)

The Korean Society for Bio-Environment Control (한국생물환경조절학회)
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Effect of Root-zone Local Cooling on Seedling Growth of Tomato

근권부 국부 냉방이 토마토 묘 생육에 미치는 영향

  • Kim, Eun Ji (Department of Horticulture, Graduate School of Mokpo National University) ;
  • Hwang, Hyunseung (Department of Environmental Horticulture, School of Equine Science and Horticulture) ;
  • Ju, Se Hun (Department of Horticulture, Graduate School of Mokpo National University) ;
  • Na, Haeyoung (Department of Horticultural Science, Mokpo National University)
  • 김은지 (목포대학교 일반대학원 원예학과) ;
  • 황현승 (제주한라대학교 생명자원학부 환경원예과) ;
  • 주세훈 (목포대학교 일반대학원 원예학과) ;
  • 나해영 (목포대학교 자연과학대학 원예과학과)
  • Received : 2022.08.03
  • Accepted : 2022.09.28
  • Published : 2022.10.31
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Abstract

The effect of root-zone local cooling on seedling growth of tomato was investigated. Lower pipe cooling was used for local cooling of the root zone, and the root zone temperature was set at 20 and 25℃. There was no difference in plant height, root length, and leaf number according to local cooling temperature. Leaf area, fresh weight, dry weight, and chlorophyll content of the shoot and root was higher in the 25℃ than those of 20℃ at 28 DAS. These results showed that cooling for seedling growth of tomato 25℃ is sufficient considering energy efficiency. This study will be helpful in the development of local cooling technology that can reduce the energy required for cooling during the production of tomato seedlings in the high temperature season.

본 연구는 근권부 냉방이 토마토 육묘 시 묘 생육에 미치는 영향을 구명하고자 수행되었다. 생장상 하부 파이프 냉방을 이용하여 근권부 온도를 20℃와 25℃로 설정하여 실험을 수행하였다. 전 생육기간동안 초장, 근장, 엽수는 두 온도 처리구간 차이를 보이지 않았다. 엽면적, 지상부와 지하부의 생체중 및 건물중, 엽록소 함량은 파종 28일 경과 시 25℃ 처리구가 더 높았으며, 실험 종료 시 두 처리구 간 유의한 차이를 보이지 않았다. 이상의 결과로 근권부 온도 20℃와 25℃에서 토마토 생육 차이를 확인하지 못했다. 따라서, 본 연구는 고온기 토마토 묘 생산 시 온실 냉방 효율을 높이기 위한 국부 냉방 기술 확립에 도움을 줄 수 있을 것이다.

Keywords

Acknowledgement

본 결과물은 농림축산식품부 및 과학기술정보통신부, 농촌진흥청의 재원으로 농림식품기술기획평가원과 재단법인 스마트팜연구개발사업단의 스마트팜다부처패키지혁신기술개발사업의 지원을 받아 연구되었음(421041-03).

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