Journal of Bio-Environment Control (생물환경조절학회지)

The Korean Society for Bio-Environment Control (한국생물환경조절학회)
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Development of Suitable Alternative Substrates in Hydroponics of Sweet Pepper

착색단고추의 수경재배에 적합한 대체 배지 개발

  • Bae, Jong-Hyang (Division of Horticulture and Pet Animal-Plant Science, Wonkwang University) ;
  • Lee, Yong-Beom (Department of Environmental Horticulture, University of Seoul) ;
  • Kim, Ho-Cheol (Division of Horticulture and Pet Animal-Plant Science, Wonkwang University) ;
  • Cha, Seung-Hoon (Division of Horticulture and Pet Animal-Plant Science, Wonkwang University) ;
  • Lee, Hye-Jin (Department of Environmental Horticulture, University of Seoul)
  • 배종향 (원광대학교 원예.애완동식물학부) ;
  • 이용범 (서울시립대학교 환경원예학과) ;
  • 김호철 (원광대학교 원예.애완동식물학부) ;
  • 차승훈 (원광대학교 원예.애완동식물학부) ;
  • 이혜진 (서울시립대학교 환경원예학과)
  • Published : 2008.06.30
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Abstract

To develop suitable alternative substrates in hydroponics of sweet pepper, changes of water contents of substrates and electric conductivity (EC) of drainage nutrient solution, growth and fruit characteristics according to the kind of coir substrates were investigated compared with rockwool. In all coir substrates compared with rockwool during growing period, water contents were higher, EC of drainage nutrient solution except for fiber 50% were lower, and the coefficient of variation were a little, especially were so in fiber 30% of coir substrates. Plant growth in fiber 30% substrate was better than others but there was no significant difference. Photosynthesis rate and chlorophyll content were best in fiber 50% substrate. Fruit weight was no significant difference, but LID ratio and shape of the fruits were good in fiber 50% substrate and rockwool as which were close to regular square. Therefore, it was estimated that mixed coir substrates with fiber $30{\sim}50%$ are enough in possibility as alternative substrate.

파프리카 수경 재배에 적합한 대체 배지 개발을 위해 코이어 배지의 종류에 따른 배지의 수분함량 및 배액의 EC 변화, 생육 및 과실 특성을 암면과 비교 시험하였다. 생육 기간 동안 암면에 비교하여 모든 코이어 배지에서 배지 내 수분함량은 높았고 섬유 50% 배지를 제외하고 배액의 EC는 낮았고, 변이계수도 작았다. 특히, 섬유 30%배지에서 수분함량과 배액 EC가 안정되었고 급격한 변화가 없었다. 초장 생육은 섬유 30%에서 다소 높은 편이었으나 큰 차이를 나타내지 않았다. 엽록소 함량과 광합성률은 암면과 섬유 50% 배지에서 높았다. 과중은 배지 종류 간 유의한 차이를 나타내지 않았고, 과형지수와 육안 상 과형은 섬유 50%배지와 암면에서 정사각형에 가까웠다. 따라서 코이어 배지를 이용한 착색단고추의 수경 재배에 있어 섬유가 $30{\sim}50%$ 혼합된 코이어 배지는 암면의 대체 배지로써 충분한 가능성을 갖고 있는 것으로 생각된다.

Keywords

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