Journal of Practical Agriculture & Fisheries Research (현장농수산연구지)

Korea National University of Agriculture and Fisheries (국립한국농수산대학교 교육개발센터)
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Study of Lettuce Growth Characteristic on Selective Light Transmitting Filter Film Covered Greenhouse

선택적 광 투과에 따른 상추 생육특성

  • Kang, D.H. (Department of General Education, Korea National College of Agriculture and Fisheries) ;
  • Hong, S.J. (Department of General Education, Korea National College of Agriculture and Fisheries) ;
  • Lee, J.W. (Department of Horticulture Environment System, Korea National College of Agriculture and Fisheries) ;
  • Kim, D.E. (Department of General Education, Korea National College of Agriculture and Fisheries)
  • 강동현 (국립한국농수산대학 교양공통과) ;
  • 홍순중 (국립한국농수산대학 교양공통과) ;
  • 이종원 (국립한국농수산대학 원예환경시스템학과) ;
  • 김동억 (국립한국농수산대학 교양공통과)
  • Received : 2020.05.01
  • Accepted : 2020.06.12
  • Published : 2020.06.30
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Abstract

This study aimed to investigate responses of plant growth and photosynthesis to different kinds of covering materials with selective light transmit for red leaf lettuce (Lactuca sativa L.). Experimental pot design was attached UV blocking filter, red filter, blue filter, and green filter. The kinds of covering materials showed significant results for plant growth especially control, UV blocking filter, and red filter. The photosynthetic rate and anthocyanin content of red leaf lettuce were higher in control and UV blocking filter than others. The quality of red leaf lettuce was low in red, green, and blue film treatments because of too low anthocyanin content.

필터 부착에 따른 모형온실 내에서 스펙트럼은 필터에 따른 파장 폭은 넓지만 각 파장대에 따른 피크치는 나타나는 것으로 조사되었다. 각각의 모형온실 내에서 조도 및 광량자속밀도를 측정한 결과 조도는 Blue필터를 부착한 온실이, 광량자 속밀도는 Red필터를 부착한 온실이 가장 높은 것으로 나타났다. 투과율을 조사한 결과 필터를 부착한 온실이 대조구에 대비하여 약 30~40% 낮은 것으로 조사되었다. 적축면상추의 생육기간별 생체중과 건물중을 측정한 결과 대조구온실에서 정식 30일 후에 약 148g으로 가장 높았고, 다음으로 Red필터 부착온실에서 약 143g으로 높았다. 재배기간에 따른 광합성속도는 상추가 성장할수록 낮아지는 경향이었으나, Blue필터 온실은 높아지는 것으로 나타났다. 수분이용효율은 큰 차이는 없었으나 Green영역에서 높은 것으로 조사되었고, 기공전도도는 대조군 온실이 가장 높은 것으로 조사되었다. 안토시아닌 함량은 모든 시험구에서 생육 후기로 갈수록 크게 감소하는 경향이었다.

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References

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