Journal of Bio-Environment Control (생물환경조절학회지)

The Korean Society for Bio-Environment Control (한국생물환경조절학회)
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Effect of Stem Number on Growth, Fruit Quality, and Yield of Sweet Peppers Grown in Greenhouses under Supplemental Lighting with High Pressure Sodium Lamps in Winter

겨울철 고압나트륨등 보광 하에서 온실재배 파프리카의 줄기 유인 수가 생육, 과실 품질 및 생산량에 미치는 영향

  • Yoon, Seungri (Department of Agriculture, Forestry and Bioresources (Horticultural Science and Biotechnology), Seoul National University) ;
  • Kim, Jin Hyun (Protected Horticulture Research Institute, National Institute of Horticultural and Herbal Science, Rural Development Administration) ;
  • Hwang, Inha (Department of Agriculture, Forestry and Bioresources (Horticultural Science and Biotechnology), Seoul National University) ;
  • Kim, Dongpil (Department of Agriculture, Forestry and Bioresources (Horticultural Science and Biotechnology), Seoul National University) ;
  • Shin, Jiyong (Department of Agriculture, Forestry and Bioresources (Horticultural Science and Biotechnology), Seoul National University) ;
  • Son, Jung Eek (Department of Agriculture, Forestry and Bioresources (Horticultural Science and Biotechnology), Seoul National University)
  • 윤승리 (서울대학교 농림생물자원학부 원예생명공학전공) ;
  • 김진현 (농촌진흥청 국립원예특작과학원 시설원예연구소) ;
  • 황인하 (서울대학교 농림생물자원학부 원예생명공학전공) ;
  • 김동필 (서울대학교 농림생물자원학부 원예생명공학전공) ;
  • 신지용 (서울대학교 농림생물자원학부 원예생명공학전공) ;
  • 손정익 (서울대학교 농림생물자원학부 원예생명공학전공)
  • Received : 2021.06.29
  • Accepted : 2021.07.27
  • Published : 2021.07.31
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Abstract

The objective of this study was to evaluate the effect of stem number on plant growth, fruit quality, and yield of sweet peppers grown in greenhouses under supplemental lighting in winter. The seedlings were transplanted at 3.2 plants·m-2 on October 26, 2020, and started supplemental lighting with 32 high pressure sodium lamps for 16-hour photoperiod from December 1, 2020 to May 25, 2021. Stems were differently trained with 2 and 3 numbers after branching nodes were developed. In the final harvest, the plant height was significantly shorter in the 3 stem-plants than in the 2 stem-plants. The number of nodes per stem and the leaves per plant were increased in the 3 stem-plants than in the 2 stem-plants, while the leaf area was less affected. There were no significant differences in the dry mass of leaves, stems, and immature fruits between the 2 and 3 stem-plants. The fruit fresh weight and fruit dry weight in the 3 stem-plants were decreased by 17% and 12% at 156 days after transplanting (DAT), and by 17% and 15% at 198 DAT compared to those in the 2 stem-plants, respectively. The marketable fruit rates were 93.6% and 95.4% in the 2 and 3 stem-plants, respectively. The total fruit yield in the 3 stem-plants was increased by 30.2% as compared to that in the 2 stem-plants. We concluded that the 3-stem-training cultivation positively affected the total fruit yield by sustaining adaptive vegetative growth of the plants. This result will help producers make useful decisions for increasing productivity of sweet peppers in greenhouses.

본 연구의 목적은 겨울철 약광기 보광 시 줄기 유인 수가 온실 파프리카의 생육, 과실의 품질 및 생산량에 미치는 영향을 구명하는 것이다. 파프리카는 2020년 10월 26일에 m2당 3.2주를 정식하였고, 2020년 12월 1일부터 고압나트륨등을 작기 종료일인 2021년 5월 25일까지 하루 16시간의 광주기로 조사하였다. 줄기 유인 처리는 분지 이후의 생장점이 각각 2, 3개로 유지되도록 유인해 주었다. 초장은 2줄기 유인 처리구에 비해 3줄기 유인 처리구에서 유의적으로 짧았고 마디수 및 엽수는 2줄기 유인 처리구에 비해 3줄기 유인 처리구에서 유의적으로 증가했다. 엽면적 및 기관별 건물중은 통계적으로 유의한 차이를 보이지 않았다. 과실 생체중 및 건물중은 모든 처리구에서 생육단계에 따라 감소하는 경향을 보였으며, 3줄기 유인처리구가 2줄기 유인 처리구에 비해 낮은 수치를 보였다. 3줄기 유인 처리구의 상품과율은 95.4%로 2줄기 유인 처리구의 93.6%에 비해 높았다. 총 수확량은 3줄기 유인 처리구에서 30.2% 높게 나타났다. 결론적으로 온실 파프리카의 3줄기 유인 재배는 적정 수준의 영양생장을 유지함으로써 과실 생산량에 긍정적인 영향을 미쳤다고 할 수 있다. 본 연구 결과는 파프리카의 생산량 증대를 위한 농가 의사결정에 활용될 수 있을 것으로 사료된다.

Keywords

Acknowledgement

이 연구는 농림축산식품부 및 농림식품기술기획평가원(IPET)의 1세대스마트팜 산업화 기술개발사업의 지원으로 수행되었음(320081-1).

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