생물환경조절학회지 (Journal of Bio-Environment Control)

  • 제32권3호
  • /
  • Pages.226-233
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  • 2023
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  • 1229-4675(pISSN)
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  • 2765-3641(eISSN)
한국생물환경조절학회 (The Korean Society for Bio-Environment Control)
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하절기 오이 온실재배 시 차광 및 보광 효과

Effect of Shading and Supplemental Lighting for Greenhouse Cultivation of Cucumber in Summer Season

  • 유진 (경상국립대학교 응용생명과학부) ;
  • 윤지혜 (경상국립대학교 응용생명과학부) ;
  • 황소영 (경상국립대학교 응용생명과학부) ;
  • 박은원 (경상국립대학교 응용생명과학부) ;
  • 황정훈 (경상국립대학교 응용생명과학부) ;
  • 최형은 (경상국립대학교 응용생명과학부) ;
  • 구정길 (경상국립대학교 농업생명과학대학 원예과학부) ;
  • 황희성 (경상국립대학교 작물생산과학부) ;
  • 황승재 (경상국립대학교 농업생명과학대학 원예과학부)
  • Jin Yu (Division of Applied Life Science, Graduate School of Gyeongsang National University) ;
  • Ji Hye Yun (Division of Applied Life Science, Graduate School of Gyeongsang National University) ;
  • So Yeong Hwang (Division of Applied Life Science, Graduate School of Gyeongsang National University) ;
  • Eun Won Park (Division of Applied Life Science, Graduate School of Gyeongsang National University) ;
  • Jeong Hun Hwang (Division of Applied Life Science, Graduate School of Gyeongsang National University) ;
  • Hyeong Eun Choi (Division of Applied Life Science, Graduate School of Gyeongsang National University) ;
  • Jeong Kil Koo (Division of Horticultural Science, College of Agriculture & Life Science, Gyeongsang National University) ;
  • Hee Sung Hwang (Division of Crop Science, Graduate School of Gyeongsang National University) ;
  • Seung Jae Hwang (Division of Horticultural Science, College of Agriculture & Life Sciences, Gyeongsang National University)
  • 투고 : 2023.06.22
  • 심사 : 2023.07.25
  • 발행 : 2023.07.31
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초록

하절기의 높은 일사량은 작물의 과도한 호흡을 유발하여 광합성을 감소시킨다. 또한 주로 하절기에 발생하는 장마는 온실 내부에 저일조 환경을 유발한다. 저일조 환경은 작물의 생육과 생산량을 감소시키는 원인이 될 수 있다. 본 연구는 하절기 차광과 보광이 오이의 생육과 생산량에 미치는 영향에 대해서 조사하기 위해 수행되었다. 오이 접목묘는 2022년 8월 30일에 플라스틱 온실 2동에 정식하였다. 온실 내부의 광량을 감소시키기 위해 온실 1동에 차광 스크린을 설치하였다. 보광처리는 2022년 9월 7일부터 2022년 10월 20일까지 수행되었다. 고압나트륨등(high-pressure sodium lamp), 백색 LED(white LED, red:green:blue = 5:3:2), RB LED(combined red and blue LED, red:blue = 7:3)를 보광 광원으로 사용하였고, 무처리를 대조구로 설정하였다. 보광 처리는 일출 전과 일몰 후 2시간씩 수행하였고, 보광 광도는 150±20 µmol·m-2·s-1로 설정하였다. 식물 초장, 엽장, 엽폭, SPAD는 차광 처리에 의해 증가하는 경향을 보였다. RB LED에서는 차광 처리와 관계없이 경경이 유의성 있게 증가되었다. 과실의 생체중과 건물중은 차광과 보광 처리에서 유의미한 차이가 없었다. 과실의 평균 과중은 수확일이 지날수록 보광처리 간의 유의한 차이는 없었다. 결론적으로, 본 연구에서 하절기 오이 재배 시 50% 수준의 차광 처리는 오이의 생육을 유의하게 향상시켰다. 또한, 보광 대조구에서 생육과 과실 특성이 좋았다. 본 연구는 오이 재배 시 보광 기술을 적용하기 위한 기초 연구 자료로 활용될 수 있다.

High solar radiation in summer season causes excessive respiration of crops and reduces photosynthesis. In addition, the rainy season, which mainly occurs in summer, causes a low light condition inside the greenhouse. A low light condition can reduce crop growth and yield. This study was conducted to evaluate the effect of shade and supplemental lighting on the growth and yield of cucumber during summer season. Cucumber grafted seedlings were transplanted in two plastic greenhouses on August 30, 2022. To reduce the light intensity inside the greenhouse, a 50% shading screen was installed in one greenhouse. Supplemental lighting was conducted from September 7, 2022 to October 20, 2022. HPS (high-pressure sodium lamp), W LED (white LED, red:green:blue = 5:3:2), and RB LED (combined red and blue LED, red:blue = 7:3) were used for supplemental lighting sources, and non-treated (nonsupplemental lighting) was as the control. The supplemental lighting was conducted before sunrise and after sunset for 2 hours with a photosynthetic photon flux density of 150 ± 20 µmol·m-2·s-1. The plant height, leaf length, leaf width, and SPAD value tended to increase in the shading group. RB LED increased stem diameter regardless of shading treatment. Fresh and dry weights of fruits were not significantly different in shading and supplemental lighting. Average fresh weight of fruits was not significantly different among supplemental lighting as the harvest date passed. In conclusion, in this study 50% shade treatment significantly improved the growth of cucumber during the summer season. In addition, the growth and fruit characteristics are better than the control without supplemental lighting. This study can be used as basic research data for applying supplemental lighting technology to cucumber cultivation.

키워드

과제정보

본 연구는 농촌진흥청 공동연구사업(세부과제명: 미세먼지 저감을 위한 농업 분야 대응 강화 기술 개발, 과제번호: RS-2022-RD010422)의 지원으로 수행되었음.

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