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2026 Vol.35, Issue 1 Preview Page

Original Articles

Effects of Shading on Photo-Physiological Characteristics and Yield of Cherry Tomato Under High-Temperature Stress Conditions

고온 스트레스 조건에서 방울토마토의 광생리적 특성 및 수량에 미치는 차광의 영향

Seung Yeon Lee1
,
Ji Seung Pyo1
,
Jeong Ho Ahn1
,
Hyun Dong Jang2
,
Hyo Gil Choi3*
이 승연1
,
표 지승1
,
안 정호1
,
장 현동2
,
최 효길3*
1Researcher Fruit Vegetable Research Institute, Chungcheongnam-do Agricultural Research and Extension Services, Buyeo 33119, Korea
2Researcher Fruit Vegetable Research Institute, Chungcheongnam-do Agricultural Research and Extension Services, Buyeo 33119, Korea
3Professor, Department of Horticulture, Kongju National University, Yesan 32439, Korea
1충청남도농업기술원 과채연구소 연구사
2충청남도농업기술원 과채연구소 연구관
3국립공주대학교 원예학과 교수
*Corresponding Author
31 January 2026. pp. 17-25
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Abstract

This study aimed to compare the effectiveness of two commonly used shading materials, namely a 55% shading screen and a thermal screen, in alleviating heat damage in cherry tomato cultivation. The effects of these shading treatments on photosynthesis, chlorophyll fluorescence, physiological characteristics, and yield of cherry tomatoes under high-temperature stress in summer were evaluated. The results showed significant differences in light transmission between the two shading materials, with the thermal screen causing a prolonged low-light environment due to its low light transmission rate in a greenhouse. Photosynthetic efficiency and plant vitality indices (PI_ABS, Fv/Fm) of cherry tomatoes grown within thermal screen covers decreased. Growth measurements revealed that lower light intensity due to the thermal screen treatment resulted in shorter plant height and delayed inflorescence appearance, indicating slower overall growth. Due to this lack of light intensity, the yield of tomato was lower in the thermal screen treatment compared to the shading screen treatment. There were no significant differences in fruit quality between shading treatments except for the sugar content of cherry tomatoes grown under the two shading conditions. These results suggest that prolonged low-light conditions due to thermal screen material covers negatively impact tomato photosynthesis and growth, ultimately leading to reduced yield. Therefore, when growing cherry tomatoes in high-temperature conditions, it is more effective to use a 55% shading screen that reduces heat damage while also providing the appropriate amount of light transmission required for photosynthesis than a thermal screen.

Keywords
chlorophyll a fluorescence
heat stress
photosynthesis
shading screen
thermal screen

본 연구의 목표는 방울토마토 재배에서 고온 피해 저감에 있어 일반적으로 사용되는 두 가지 차광재료인 55% 흑색 차광막과 다겹보온커튼(열 스크린)의 효과를 비교하는 것이다. 이러한 차광 처리가 여름철 고온 스트레스 하에서 방울토마토의 광합성, 엽록소 형광, 생리적 특성 및 수량에 미치는 영향을 평가하였다. 그 결과 두 차광자재 간의 광 투과율에 유의미한 차이가 있었고, 다겹보온커튼은 온실에서 낮은 광 투과율로 인해 장시간 저조도 환경을 유발하였다. 다겹보온커튼 내에서 재배된 방울토마토의 광합성 효율과 식물 활력 지수(PI_ABS, Fv/Fm)는 감소하였다. 생장 측정 결과, 다겹보온커튼 처리로 인한 낮은 광도는 식물 초장을 짧게 하고 화방 출현을 지연시켜 전반적인 생장이 저하되었다. 이러한 광도 부족으로 인해 다겹보온커튼에서 생육한 토마토는 차광막 처리에 비해 수량이 감소하였다. 두 차광 조건에서 재배된 방울토마토의 당도를 제외하고는 차광 처리 간에 과실 품질에 유의미한 차이는 없었다. 이러한 결과는 다겹보온커튼으로 인한 장기간의 저조도 환경이 토마토 광합성과 생장에 부정적인 영향을 미쳐 궁극적으로 수확량 감소로 이어짐을 시사한다. 따라서 고온 환경에서 방울토마토를 재배할 때는 다겹보온커튼보다 열 피해를 줄이면서 광합성에 필요한 적절한 양의 빛 투과율을 제공하는 55% 차광막을 사용하는 것이 효과적이다.

키워드
광합성
다겹보온커튼
열스트레스
엽록소 형광
차광막
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Information
  • Publisher :The Korean Society for Bio-Environment Control
  • Publisher(Ko) :(사)한국생물환경조절학회
  • Journal Title :Journal of Bio-Environment Control
  • Journal Title(Ko) :생물환경조절학회지
  • Volume : 35
  • No :1
  • Pages :17-25
  • Received Date : 2025-10-02
  • Revised Date : 2026-01-16
  • Accepted Date : 2026-01-19
  • DOI :https://doi.org/10.12791/KSBEC.2026.35.1.017
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