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2014 Vol.32, Issue 5 Preview Page
Analyses of CO2 Concentration and Balance in a Closed Production System for King Oyster Mushroom and Lettuce

밀폐형 식물생산시스템 내 새송이 버섯과 상추의 혼합 재배 비율에 따른 CO2 농도 변화 및 균형 분석

Dae Ho Jung1
,
Chan Kyo Kim2
,
Kyung Hun Oh2
,
Dong-Hyeon Lee2
,
Minsu Kim2
,
Jong Hwa Shin1
,
Jung Eek Son1*
정 대호1
,
김 찬교2
,
오 경훈2
,
이 동현2
,
김 민수2
,
신 종화1
,
손 정익1*
1Department of Plant Science, Seoul National University
2Hansung Science High School
1서울대학교 식물생산과학부
2한성과학고
*교신저자. *Corresponding Author. 
31 October 2014. pp. 628-635
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Abstract

Curcuma alismatifolia is becoming popular for cut flowers and potted plants due to its long inflorescence with many showy pink flowers. It is propagated by rhizomes and inflorescences that are similar to those of lotus. However, initiation of inflorescence development of each bract and flower has not been investigated. Therefore, this experiment was conducted to study the inflorescence development of Curcuma alismatifolia ‘Chiangmai Pink’ by scanning electron microscopy (SEM). When new shoots grew to 15-20 cm in a greenhouse at 25°C, the first bract initiated with a dome-shaped inflorescence apex, followed by initiation of additional bracts, forming the shape of the flower head. Florets were subtended by the first bract when five to seven bracts were formed. Four to six florets were subtended by each bract. The floret positioned in the center initiated and progressed upward first. When the center florets in the upper bracts were formed, florets next to the center floret subtended by the first bract were formed, and formation of the axillary florets progressed upward in sequential order.

Keywords
CELSS
growth stage
king oyster mushroom
Romaine

버섯은 배양과 생육과정을 거치면서 다량의 CO2를 배출하므로 식물을 생산하는 식물생산시스템에서 CO2 공급원으로 활용할 수 있다. 본 연구의 목적은 버섯과 상추의 생육 시기에 따른 CO2 발생 속도와 흡수 속도를 측정하고, 혼합 식물 생산 시스템에서 두 작물의 재배 비율에 따른 CO2 농도를 분석하는 것이다. 새송이 버섯과 상추 아시아 흑로메인 품종을 실험에 사용하였으며, 각각 18°C, 22°C로 내부 온도가 유지되는 밀폐형 아크릴 챔버(1.0m × 0.8m × 0.5m)에서 CO2 발생 속도와 흡수 속도를 측정하였다. 상추는 PPF 340μmol･m-2･s-1의 광도와 EC 1.2dS･m-1의 양액에서 재배하였고, 다이아프램(diaphragm) 펌프를 이용하여 주기적으로 버섯 챔버와 상추 챔버 사이의 공기를 순환시켰다. 버섯의 CO2 발생 속도는 균 긁기 후 15일차까지 증가한 후 다시 감소하였으며, 생육 온도가 높아질수록 CO2 발생 속도가 증가하였다. 특히 솎음 처리에 의해 버섯의 자실체 생체중 당 CO2 발생 속도가 약 3.1배 증가하였다. CO2 균형 관점에서 보면, 균 긁기 후 9, 12, 14일차 버섯 1병(950mL)의 CO2 발생 속도는, 정식 후 7, 10, 12일인 상추 3, 4.5, 5.5 개체 CO2 흡수 속도에 대응하는 것으로 나타났다. 따라서 두 작물의 적합한 재배 비율의 설정을 통하여 밀폐형 혼합 식물생산시스템 내 CO2 농도 균형을 이루는 것이 가능하다.

키워드
밀폐생태계
생육단계
새송이 버섯
로메인 상추
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Information
  • Publisher :KOREAN SOCIETY FOR HORTICULTURAL SCIENCE
  • Publisher(Ko) :한국원예학회
  • Journal Title :Horticultural Science and Technology
  • Journal Title(Ko) :원예과학기술지
  • Volume : 32
  • No :5
  • Pages :628-635
  • Received Date : 2013-12-20
  • Revised Date : 2014-01-13
  • Accepted Date : 2014-02-05
  • DOI :https://doi.org/10.7235/hort.2014.13192
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