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Effect of Mixture Media of Red Clay and Peatmoss on Quality and Drainage Solution in Hydroponics of Solanum lycopersicum 'Mascara'

황토와 피트모스 혼합배지가 수경재배 토마토 'Mascara'의 품질과 배액에 미치는 영향

  • Na, Taek Sang (Horticulture Division, Jeollanamdo Agricultural Research and Extension Service) ;
  • Choi, Kyong Ju (Horticulture Division, Jeollanamdo Agricultural Research and Extension Service) ;
  • Yoon, Bong Gi (Horticulture Division, Jeollanamdo Agricultural Research and Extension Service) ;
  • Cho, Myoung Soo (Horticulture Division, Jeollanamdo Agricultural Research and Extension Service) ;
  • Kim, Hee Gon (Horticulture Division, Jeollanamdo Agricultural Research and Extension Service) ;
  • Kim, Hyo Joong (Horticulture Division, Jeollanamdo Agricultural Research and Extension Service) ;
  • Son, Dong Mo (Horticulture Division, Jeollanamdo Agricultural Research and Extension Service) ;
  • Yoo, Yong Kweon (Department of Horticultural Science, College of Natural Science, Mokpo Nat'l Univ.)
  • 나택상 (전남농업기술원 원예연구소) ;
  • 최경주 (전남농업기술원 원예연구소) ;
  • 윤봉기 (전남농업기술원 원예연구소) ;
  • 조명수 (전남농업기술원 원예연구소) ;
  • 김희곤 (전남농업기술원 원예연구소) ;
  • 김효중 (전남농업기술원 원예연구소) ;
  • 손동모 (전남농업기술원 원예연구소) ;
  • 유용권 (목포대학교 원예과학과)
  • Received : 2012.11.06
  • Accepted : 2012.12.24
  • Published : 2013.03.31

Abstract

This study was conducted to examine the effects of coir, peatmoss, and red clay (20%) + peatmoss (80%) media on quality and drainage solution in hydroponics of Solanum lycopersicum 'Mascara'. The tomato seedlings were planted in media on 29 April, and supplied with Yamazaki's tomato solution of EC $2.0dS{\cdot}m^{-1}$ and pH 6.5. Tomato fruits were harvested from 13 June to 24 August. Drainage amount decresed when solar radiation and air temperature were high. However, drainage amount were not different among coir, peatmoss, and red clay + peatmoss media. The EC of drainage in red clay + peatmoss medium was higher than that in other media during the cultivation period. Also, soild state and available moisture content was more in red clay + peatmoss mediun than in coir or peatmoss media. The soluble solids of tomato fruits increased by 10~17% at $5.5^{\circ}Brix$ in red clay+peatmoss medium compared with $5.0{\sim}4.7^{\circ}Brix$ in coir or peatmoss media. Also, the acidity of fruits was the highest to 0.66% in red clay + peatmoss medium than the others. The total yield of fruits in red clay + peatmoss medium increased significantly by 9.1% at 8,428 kg than at 7,725 kg in peatmoss medium, and ratio of marketable yield was higher than the other media. Therefore, red clay (20%) + peat moss (80%) medium is recommend for growth and quality of fruits in hydroponics of Solanum lycopersicum 'Mascara'.

본 연구는 토마토 'Mascara' 품종을 코코피트, 피트모스, 황토와 피트모스 혼합배지에서 양액재배시 생육과 품질에 미치는 영향을 알아보고자 실시하였다. 토마토 묘를 4월 29일에 정식하였고, Yamazaki 토마토 전용 양액을 EC $2.0dS{\cdot}m^{-1}$, pH 6.5로 조정하여 공급하였다. 토마토 과실은 6월 13일부터 8월 24일까지 수확하여 생육과 품질을 조사하였다. 토마토 양액재배에 있어서 배액량은 일사량이 많고 온도가 높았을때 배액량이 감소하였으나, 코코피트, 피트모스, 황토 + 피트모스 등 배지별 배액량은 차이가 없었다. 피트모스 단용 배지에서 재배기간동안 다른 배지에 비해 배액의 EC가 낮게 나타났으며, 황토와 피트모스 혼합배지에서 높게 나타났다. 황토와 피트모스 혼합배지는 다른 배지보다 고상이 많았고, 유효수분함량이 가장 높았다. 토마토의 당도는 황토와 피트모스 혼합배지에서 $5.5^{\circ}Brix$로 가장 높았고, 피트모스 배지에서 $4.7^{\circ}Brix$로 가장 낮게 나타났다. 산도는 황토와 피트모스 혼합배지에서 0.66%로 가장 높았다. 수확량은 황토와 피트모스 혼합배지에서 8,428kg/10a로 가장 많았고, 상품성이 있는 과실수량의 비율도 다른 배지보다 더 높았다.

Keywords

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