Horticultural Science & Technology (원예과학기술지)

Korean Society of Horticultural Science (한국원예학회)
권호 표지

Effect of Double Layered Substrate on the Growth, Yield and Fruit Quality of Strawberry in Elevated Hydroponic System

딸기 고설수경재배에서 2층고형배지가 생육, 수량 및 과실의 품질에 미치는 영향

Jeon, Ha-Jun;Lee, Ki-Myeong;Hwang, Jin-Kyu;Kim, In-Kyu;Son, Mi-Ja
전하준;이기명;황진규;김인규;손미자

  • Published : 20060000
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Abstract

This experiment has investigated the effects of growth, yield, and fruit quality of strawberries by two different kinds of growth substrate layers. The experiment was performed with strawberry cultivar ‘Akihime’ in greenhouse in Daegu University. Perlite, cocopeat, cocopeat/perlite (upper layer/lower layer), vermiculite/perlite and the mixture of vermiculite and rice hull were used for solid substrate. Nutrient solution for strawberries, which made by Yamazaki, was supplied in proper concentration by its growth stage. Early stages of strawberry growth were the best at the cocopeat substrate in terms of number of leaves, leaf length, and leaf width. The soluble solids and fruit length of the strawberries did not differ from the different kind of substrates. However, the weight and diameter of strawberries did have the best outcomes from the cocopeat substrate and the cocopeat/perlite two layer substrates. The number of strawberries was the best at the cocopeat/perlite substrates due to the high capacity of moisture holding at the upper layer and the good air permeability of the lower layer, which derived good nourishment from the well developed roots. The results of this experiment will be utilized in the new substrate application for strawberry hydroponics.

본 실험에서는 딸기의 고설수경재배기술을 확립하기 위하여 먼저 고형배지 종류별로 딸기의 생육, 수량 및 과실의 품질에 미치는 영향을 조사하고, 특히 2층배지의 영향을 검토하고자 하였다. 딸기 품종은 ‘아키히메’를 사용하였으며, 고형배지는, 펄라이트 배지, 코코피트 배지, 코코피트/펄라이트(상/하)의 2층배지, 버미큘라이트/펄라이트의 2층배지, 버미큘라이트와 왕겨의 혼합배지를 사용하였다. 딸기의 초기 생육은 코코피트 배지에서 가장 양호하였다. 딸기의 당도와 과장은 배지의 종류별로 유의성 있는 차이가 없었으나, 과중과 과경은 코코피트 배지와 코코피트/펄라이트의 2층배지에서 가장 높았다. 수량은 코코피트/펄라이트의 2층배지에서 가장 높았고, 그 다음으로 펄라이트와 코코피트 단독배지가 높았으며, 버미큘라이트/펄라이트의 2층배지, 버미큘라이트와 왕겨의 혼합배지에서 가장 낮은 결과를 나타내었는데, 이것은 상층은 보수력이 좋은 배지, 그리고 하층은 통기성이 좋은 배지를 사용함으로써, 충분한 뿌리발달을 유도하여 양분흡수가 원활하게 이루어진 결과에 의한 것이라고 생각된다. 본 실험의 결과는 딸기의 고설수경재배에서 고형배지의 사용에 있어서, 새로운 개념을 도입할 수 있는 계기가 될 수 있을 것으로 생각된다.

Keywords

References

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