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차광도포제 처리에 의한 포도 비가림 시설 하부 온도의 변화

Temperature Changes under Plastic Film Rain Shelter Using Different Concentration of Shading Paint in Vineyard

  • 정성민 (국립원예특작과학원 기획조정과) ;
  • 허윤영 (국립원예특작과학원 과수과) ;
  • 임동준 (국립원예특작과학원 과수과) ;
  • 정경호 (국립원예특작과학원 과수과)
  • Jung, Sung Min (Planning and Coordination Division, National Institute Horticultural and Herbal Science, RDA) ;
  • Hur, Youn Young (Fruit Research Division, National Institute Horticultural and Herbal Science, RDA) ;
  • Im, Dong Jun (Fruit Research Division, National Institute Horticultural and Herbal Science, RDA) ;
  • Chung, Kyung Ho (Fruit Research Division, National Institute Horticultural and Herbal Science, RDA)
  • 투고 : 2019.06.27
  • 심사 : 2019.09.03
  • 발행 : 2019.10.30

초록

차광도포제 처리는 시설하우스 내부의 고온 제어를 위한 유용한 관리 방법 중 하나로 이용되고 있다. 우리나라 포도과원에 설치된 비가림 시설은 강우를 방지하여 병 발생을 예방하는 독특한 시설로 여름철 고온 피해를 받을 가능성이 높다. 본 시험에서는 포도 비가림 시설 아래의 과도한 고온을 회피하기 위해 차광도포제의 농도를 달리하여 비가림 비닐 외부에 처리하였다. 그 결과 35% 차광도포제 처리는 비가림 비닐 아래의 PPFD (광합성 광양자 자속 밀도)의 45%를 감소시켰다. 또한 35% 차광도포제 처리는 무처리 대비 과방부위 온도를 $2^{\circ}C$를 낮추는 결과를 나타냈다. 차광도포제 처리는 포도비가림 시설에서 유의하게 온도를 낮추는 효과가 확인되었지만 주변 온도보다 낮은 온도로 제어 할 수는 없었다. 자연적으로 제거되는 35% 차광도포제 처리는 우리나라의 포도 비가림 시설내의 여름철 과도한 열 손상과 과일 품질 저하를 방지하는 방법으로 활용할 수 있다.

Shading paint (water-soluble) is one of the temperature control agents inside of a greenhouse in summer. Plastic film rain shelter is a unique system in Korean, prevents disease development vineyards, but it causes the heat inside a shelter in summer. Shading paint treatment with different shading rates (15, 25, and 35%) outside of plastic rain shelter avoided excessive heat inside. Shading paint influenced sunlight under plastic rain shelter in a different manner at each treatment. 35% of shading paint treatment reduced 45% of PPFD (Photosynthesis Photon Flux Density) than non-treatment control. Shading paint had the significance of efficiency to reduce the temperature under plastic rain shelter. 35% of shading paint treatment reduced $2^{\circ}C$ of bunch temperature than non-treatment control. However, shading paint treatment had not to control lower than ambient temperature. 35% of shading paint treatment is available to prevent excessive heat damage and poor fruit quality under plastic film rain shelter in summer in Korean vineyards.

키워드

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