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NTIS 바로가기시설원예ㆍ식물공장 = Protected horticulture and plant factory, v.28 no.2, 2019년, pp.158 - 165
복권정 (충남대학교 농업생명과학대학 원예학과) , 최재윤 (충남대학교 농업생명과학대학 원예학과) , 이현주 (충남대학교 농업생명과학대학 원예학과) , 이광야 (한국농어촌공사 재난안전처 농업가뭄센터) , 박종석 (충남대학교 농업생명과학대학 원예학과)
The effects of microbubbles on glucosinolate accumulation and growth of watercress (Nasturtium officinale R. Br.) were investigated. Watercress plant at the 4th mature leaf stage (2 weeks old) were exposed to microbubbles or non-microbubbles generated in an Otsuka-house nutrient solution for 3 weeks...
핵심어 | 질문 | 논문에서 추출한 답변 |
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물냉이란? | )는 미국 질병예방통제센터(Control Disease Center, USA)에서 칼로리당 영양밀도가 가장 높은 작물로 2014년도에 선정 되었다(Di noia, 2014). 물냉이는 십자화과에 속하는 다년생 수생 초본식물로 맑고 차가운 물가에서 자라며 유럽, 미국 그리고 아시아에 걸쳐 널리 분포한다(Cruz 등, 2008). 우리나라의 물냉이는 유럽 원산의 귀화식물로 “워터크레스(watercress)”로 불리지만 유럽에서는 “크레숑(cresson)”으로 더 잘 알려진 향신 채소이다. | |
마이크로-나노버블 기술이 필요한 이유는? | 담액수경재배의 단점을 극복하기 위한 방법으로 양액 내에 산소를 공급하기 위하여 배양액의 순환주기를 조절하거나(Seo 등, 2009) 양액내 산소공급장치를 이용하는 방법 등이 이용 되고 있으며, 이중에서 마이크로-나노버블을 담액수경재배에 적용한 결과 상추의 지상부 생육이 유의적으로 증대되었다(Park과 Kurata, 2009). 이러한 결과는 배양액내 발생된 마이크로버블의 표면에 전기적음전화를 나타내는 (–)제타포텐셜에 기인하였다고 보고하였다(Takahashi, 2005). | |
마이크로 버블을 이용해 물냉이를 재배했을때 변화가 없던것은? | 물냉이 초장은 대조구처리가 마이크로버블처리보다 41% 증가하였으며, 유의적으로 높게 나타났다. 그러나, 지상부 생체중과 건물중, 근장, 엽장, 엽폭, SPAD, 량자수율값은 두처리간 유의적 차이는 나타나지 않았다. Glucosinolate 함량을 분석 결과 4-methoxygluco-brassicin을 제외한 glucoiberin, glucobrassicin, gluconapin,gluconasturtiin의 경우 마이크로버블 처리구가 대조구보다 유의적으로 높게 나타났으며, 물냉이 한주 당 총 glucosinolate 함량은 마이크로버블 처리구가 대조구 보다 85%(μmol/g DW)와 65%(μmol/plant) 더 높게 나타났다. |
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