Tomatoes in greenhouse are a widely cultivated horticultural crop worldwide, accounting for high production and production value. When greenhouse ventilation is minimized during low temperature periods, CO2 enrichment is often used to increase tomato photosynthetic rate and yield. Plant-induced electrical signal (PIES) can be used as a technology to monitor changes in the biological response of crops due to environmental changes by using the principle of measuring the resistance value, or impedance, within the crop. This study was conducted to investigate the relationship between tomato growth data, vital response, and PIES resulting from CO2 enrichment in greenhouse tomatoes. The growth of tomato treated with CO2 enrichment in the morning was significantly better in all items except stem diameter compared to the control, and PIES values were also higher. The growth of tomato continuously applied with CO2 was better in the treatment groups than control, and there was no significant difference in chlorophyll fluorescence and photosynthesis. However, PIES and SPAD values were higher in the CO2 treatment group than control. CO2 enrichment have a direct relationship with PIES, growth increased, and transpiration increased due to the increased leaf area, resulting in increased water absorption, which appears to be reflected in PIES, which measures vascular impedance. Through this, this study suggests that PIES can be used to monitor crops due to environmental changes, and that PIES is a useful method for non-destructively and continuously monitoring changes of crops.

서 론
재료 및 방법
    1. 재배환경
    2. 온실 내 CO2 시비 방법
    3. 작물 생육조사
    4. 작물 생체정보 조사
    5. 데이터 수집 및 통계 분석
결과 및 고찰
    1. 오전 CO2 처리구와 무처리구의 온실 환경 비교
    2. 오전 CO2 시비에 따른 작물 생육 및 생체 반응 비교
    3. 연속적인 CO2 시비에 따른 온실 환경
    4. 연속적인 CO2 시비에 따른 작물 생육 및 생체 반응비교
    5. 연속적인 CO2 시비에 따른 토마토 생육과 생체반응및 PIES의 상관관계
적 요
사 사

• 구희웅(지역특화작목산업화센터 연구원) | Hee Woong Goo (Researcher. Regional Crop Research Institute, Muan 58554, Korea)
• 이규원(국립목표대학교 원예학과 대학원생) | Gyu Won Lee (Graduate Student, Department of Horticulture, Mokpo National University, Muan 58554, Korea)
• 송욱진(국립목표대학교 원예학과 대학원생) | Wook Jin Song (Graduate Student, Department of Horticulture, Mokpo National University, Muan 58554, Korea)
• 김도현(국립목표대학교 원예학과 대학원생) | Do Hyeon Kim (Graduate Student, Department of Horticulture, Mokpo National University, Muan 58554, Korea)
• 박현준(㈜푸름바이오 대표) | Hyun Jun Park (Representative, Soil Research Institute, Prumbio Co. Ltd., Suwon 16386, Korea)
• 박경섭(지역특화작목산업화센터 연구원, 국립목포대학교 원예학과 교수) | Kyoung Sub Park (Researcher. Regional Crop Research Institute, Muan 58554, Korea, Professor, Department of Horticulture, Mokpo National University, Muan 58554, Korea) Corresponding author