Journal of Bio-Environment Control (생물환경조절학회지)

The Korean Society for Bio-Environment Control (한국생물환경조절학회)
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Growth and Yield Response of Perilla Plants Grown under Different Substrates in Hydroponic System

잎들깨 수경재배에서 배지 종류에 따른 식물 생육 및 수량의 반응

  • Shin, Minju (Protected Horticulture Research Institute, National Institute of Horticultural and Herbal Science) ;
  • Jeong, Ho Jeong (Protected Horticulture Research Institute, National Institute of Horticultural and Herbal Science) ;
  • Roh, Mi Young (Protected Horticulture Research Institute, National Institute of Horticultural and Herbal Science) ;
  • Kim, Jin Hyun (Protected Horticulture Research Institute, National Institute of Horticultural and Herbal Science) ;
  • Song, Kwan Jeong (Department of Horticultural Science, Jeju National University)
  • 신민주 (농촌진흥청 국립원예특작과학원 시설원예연구소) ;
  • 정호정 (농촌진흥청 국립원예특작과학원 시설원예연구소) ;
  • 노미영 (농촌진흥청 국립원예특작과학원 시설원예연구소) ;
  • 김진현 (농촌진흥청 국립원예특작과학원 시설원예연구소) ;
  • 송관정 (제주대학교 원예학과)
  • Received : 2022.06.07
  • Accepted : 2022.09.29
  • Published : 2022.10.31
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Abstract

This study was conducted to analyze physical and chemical properties of horticultural substrates and response of hydroponically grown two cultivars of 'Namcheon' and 'Somirang' perilla by four different substrates: coir (chip:dust = 5:5), perlite, granular rockwool, and commercial mixed substrate (cocopeat:peatmoss:vermiculite:perlite: zeolite = 50:25:10:10:5). There were no significant differences in EC and pH according to substrates. Container capacity was the greatest in granular rockwool, and it showed appropriate levels in mixed substrate and coir. Air space was higher in coir and perlite than the other treatments. Bulky density reached a proper standard in all substrates excepting coir. The leaf length and width of 'Namcheon' indicated the most in mixed substrate, though the value of 'Somirang'was greatest in coir substrate. The leaf weight of both cultivars was highest in mixed substrate, and relatively low in coir and perlite. The total yield of leaves was separated by two groups: higher group, which are mixed substrate and granular rockwool, and lower group, which are coir and perlite. There was a large gap by 28% between these two groups. Therefore, this study suggests that substrates with high water holding capacity such as mixed substrate or granular rockwool are most suitable for the hydroponic cultivation of perilla, which require sufficient moisture supply to the root zone.

잎들깨 수경재배 시 적합한 고형배지를 선발하기 위하여 본 연구를 수행하였다. '남천'과 '소미랑' 2품종에 대해 코이어(chip:dust = 5:5), 펄라이트, 입상 암면, 원예용 상토(cocopeat: peatmoss:vermiculite:perlite:zeolite = 50:25:10:10:5) 등 4종의 배지에 따른 배지의 물리화학적 특성 및 생육반응을 분석하였다. 배지 간의 EC와 pH의 차이는 보이지 않았으나, 용기용수량 측정 결과 입상 암면이 가장 높고 원예용 상토와 코이어가 적절한 수준을 유지하였다. 배지의 기상률은 코이어와 펄라이트가 30% 이상으로 높은 경향을 보였으며 가비중은 코이어 배지를 제외한 모든 배지가 기준을 충족하였다. 잎의 크기는 품종 간에 배지에 따른 반응이 다르게 나타났는데 '남천' 품종은 원예용 상토에서 엽장, 엽폭이 가장 컸고 '소미랑'의 경우 코이어에서 재배하였을 때 가장 컸다. 엽중은 두 품종 모두 원예용 상토에서 재배한 것이 가장 높았고, 코이어와 펄라이트에서 재배한 것이 상대적으로 낮았다. 총 생산량을 조사한 결과 수량이 높은 원예용 상토 및 입상 암면과 수량이 낮은 코이어, 펄라이트로 두 그룹으로 구분되는 형태를 보였으며 그룹 간에 최대 28% 차이를 보였다. 따라서 근권에 충분한 수분 공급이 필요한 잎들깨를 수경재배하기 위해서는 보수력이 좋은 원예용 상토와 입상 암면을 이용하는 것이 적합할 것으로 판단한다.

Keywords

Acknowledgement

이 논문은 농촌진흥청 연구사업(세부과제번호: PJ016026202107)의 지원에 의해 이루어진 것입니다.

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