Effect of Silicon on Albinism of Strawberry in Elevated Hydroponic System

딸기의 고설수경재배에서 백납과 발생에 미치는 규소의 영향

  • Jun, Ha-Joon (College of Life & Environmental Science Daegu University) ;
  • Hwang, Jin-Gyu (College of Life & Environmental Science Daegu University) ;
  • Son, Mi-Ja (College of Life & Environmental Science Daegu University) ;
  • Choi, Moon-Hwan (College of Life & Environmental Science Daegu University) ;
  • Yoon, Hae-Suk (Gyeongnam Agricultural Research & Extension Services)
  • 전하준 (대구대학교 생명환경대학) ;
  • 촹진규 (대구대학교 생명환경대학) ;
  • 손미자 (대구대학교 생명환경대학) ;
  • 최문환 (대구대학교 생명환경대학) ;
  • 윤혜숙 (경상남도 농업기술원)
  • Published : 2006.12.30

Abstract

This experiment has investigated the effects of silicon on albinism of strawberry. Albino fruit appeared after a month of treatment of potasium silicate(Si) in nutrient solution. When $200mL{\cdot}L^{-1}$ of Si applied, number of albino fruit increased over 90% of total amount of fruit, and the symptom remained latest any other treatment. The fruit length of the strawberries in Si treatments were longer than control treatment. However, the diameter and weight of fruit decreased in treatment of Si. The soluble solids of fruits, numbers of fruit and yield per plant were no significant differences among treatments. The rate of albino fruit was significantly increased with increase of concentration of Si. The results of this experiment will be utilized for the cultivation in the new substrate application for strawberry hydroponics.

딸기의 백납과를 유발하는 것으로 추정되는 몇 가지 요인 중에서 규소가 백납과의 발생에 미치는 영향을 검토하였다. 배양액 내에 규소를 첨가하면 약 1개월 후부터 백납과가 발생하였는데 potassium silicate ($K_2SiO_4$) $200mL{\cdot}L^{-1}$ 처리에서는 최고 90%이상의 백납과 발생율을 나타내었다. 배양액에 규소를 제거하면 약 7$\sim$8주 후에 백납과의 발생이 중단되었으나 potassium silicate($K_2SiO_4$)의 $200mL{\cdot}L^{-1}$ 처리에서 가장 늦게까지 발생이 지속되었다. 과실의 길이는 대조구에 비해 규소 처리구에서 약간 길었으며, 과경과 과중은 고농도의 규소 처리구에서 감소하는 경향을 나타내었다. 과실내의 가용성 고형물과 과실수, 주당 수확량은 처리 간에 차이가 없었다. 백납과의 발생비율은 규소의 농도가 높을수록 현저하게 증가하였다. 본 실험의 결과에서 왕겨배지를 사용하는 수경재배의 백납과 발생은 왕겨에서 유출된 규소의 영향인 것으로 밝혀졌다. 이 결과는 수경재배농가의 백납과 발생 방지에 유효한 정보로 이용될 수 있을 것이다.

Keywords

References

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