• 한국대기환경학회지
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• 제32권3호
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• pp.248-255
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• 2016

The leaves of three plant species, such as soybean, raspberry, and kudzu, exposed to hydrogen fluoride was collected in an area surrounding an emission source where the release accident occurred. The ultrasonic-assisted extraction and analysis of fluoride by ion chromatography was carried out. The mean concentration of fluoride in the leaves of three plant species exposed to hydrogen fluoride was $5,409{\pm}1,198mg\;F/kg\;dry\;wt$ and $788{\pm}339mg\;F/kg\;dry\;wt$, respectively. The mean fluoride concentration in ambient air were estimated to be $2.36{\pm}0.65mg/m^3$ ($2.89{\pm}0.79ppm$) and $0.35{\pm}0.15mg/m^3$ ($0.43{\pm}0.19ppm$) in exposed and unexposed sites, respectively. It seems likely that the passive monitoring using plant leaves could identify with respect to plant risk by fluoride in atmosphere.

• The Plant Pathology Journal
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• 제18권1호
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• pp.50-53
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• 2002

To develop Epicoccosorus nematosporus as a mycoherbicide of Eleocharis kuroguwai, the optimum temperature and humidity for sporulation of the pathogen were studied. Conidial production was most abundant at $28^{\circ}C$ with RH 60%, which yielded 661 mg in 9 cm Petri dish. Light intensity of 3,000 up to 7,500 lux was effective in stimulating conidial production of E. nematosporus on oatmeal agar, Light intensity affected sporulation more significantly than temperature. In the pot test, at least 12 h of dew period at $20^{\circ}C$ and $25^{\circ}C$ was required to achieve satisfactory conidial germination and appressorial formation. Few were killed at 8 h of dew period regardless of temperature. Sixteen hours of a single dew treatment immediately after inoculation killed more plants than did two or three repetitive dew treatments of 8-12 h.

• 인간식물환경학회지
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• 제24권2호
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• pp.179-194
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• 2021

Background and objective: Plant-based biofilter system has become a promising candidate for improving indoor air quality due to its eco-friendly and sustainable nature. However, it remains controversial whether indoor air purification using a biofilter is effective. Methods: This study used the one-group pre- and post-test design to analyze the effects of the operation of the plant-based biofilter system on indoor air quality, students' perception of indoor air quality, health effects, and subjective and objective attentiveness. Results: Results of this study show that the application of the plant-based biofilter system changed the air environment in the classroom. The operation of the plant-based biofilter system significantly decreased PM_2.5 and PM₁₀ and slightly increased temperature and humidity. Satisfaction with air quality and subjective attentiveness were significantly improved but objective attentiveness and health effects were not improved. Conclusion: Further studies need to be conducted for improving indoor air quality of schools and evaluating the health effects and attention of occupants to present the objective performance of the plant-based biofilter system.

• 한국태양에너지학회 논문집
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• 제34권5호
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• pp.43-52
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• 2014

A plant factory system is getting the spotlight as alternatives to cope with the weather anomaly and food crisis because of the global warming. A study on 'Plant Processing Factory System' has been proceeded to develope 'low-carbon green growth' since our government selected it as the green technologies in 2010. The plant factory has played a major role in growth industries connected to many other fields like low-carbon as well as lighting and automated system. This study is aimed to solve the problems on low productivity and health problem of plant workers caused by highly concentrated carbon dioxide and low temperature in each process in the plant factory. It is aimed to research data to understand the actual conditions of plant workers and improve the thermal environment.

• 식물병연구
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• 제13권3호
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• pp.164-169
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• 2007

잿빛곰팡이병은 6월 초순부터 작은 수침상의 병반이 잎에 나타나기 시작하였고. 점무늬병은 7월 초순부터 초기의 병반을 발견할 수 있었는데, 두 가지의 병 모두 7월말과 8월 초에 강우일수가 많아지면서 병의 발생이 크게 증가하기 시작하였다. 탄저병 역시 강우가 많아지는 8월 초순부터 발생하기 시작하여 9월까지 발생량이 계속 증가하였다. 인삼의 지상부 병의 효율적인 방제를 위하여 살균제 처리 체계를 확립하고자 실험에 사용한 6종의 살균제를 정해진 시기에 7회 처리하고 3종의 식물병에 대한 방제 효과를 검정하였다. 본 연구의 인삼 살균제 처리 체계는 병진전 곡선면적에 기초하여 계산하였을 때, 잿빛곰팡이병, 점무늬병, 탄저병에 대해서 61.7, 78.8, 70.5%의 효과를 보였다. 인삼 살균제 처리 체계에서 1차 처리에서 carbendazim/diethofencarb 합제를 처리하지 않은 처리구는 잿빛곰팡이병에 대한 방제가가 36.7%로, 5차 처리에서 difenoconazole을 처리하지 않을 경우에는 점무늬병의 방제가가 28.9%로, trifloxystrobin을 6차 처리에서 처리하지 않으면 탄저병에 대한 방제가가 44.4%로 크게 감소하였다.

• 식물병연구
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• 제18권1호
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• pp.24-28
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• 2012

Protox 유전자를 형질전환하여 protox 저해 제초제에 대한 내성이 증가한 벼를 모품종인 동진벼와 다른 벼 품종인 일품벼, 추청벼, 온누리벼와 같이 충북 청원, 경기 수원 그리고 전남 광주에 있는 형질전환 작물 격리포장에서 재배하면서 포장에서 발생하는 다양한 식물병을 조사하여 식물병원균에 대한 감수성 정도를 비교하였다. 충북 청원 포장에서는 벼 도열병, 깨씨무늬병, 잎집무늬마름병, Fusarium 마름증상 등이 발생하였다. 하지만 수원 포장에서는 깨씨무늬병이 거의 발생하지 않았고, 다른 포장에서 볼 수 없었던 이삭누룩병의 발생이 CCPO6벼와 온누리벼에서 0.28%와 0.37%의 발병수율을 보였다. 광주 포장에서는 깨씨무늬병의 발생이 다른 병보다 심하게 나타났다. 하지만 모든 포장에서 Fusarium에 의한 마름증상을 제외하고 벼 품종간에 있어서 발생량에 차이는 보이지 않았다. Fusarium에 의한 마름증상은 다른 벼 품종보다도 제초제를 처리하거나 처리하지 않은 CCPO6벼에서 높은 발병주율을 보였다.

• The Plant Pathology Journal
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• 제17권6호
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• pp.378.4-379
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• 2001

• The Plant Pathology Journal
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• 제17권6호
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• pp.368.4-369
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• 2001

• The Plant Pathology Journal
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• 제17권6호
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• pp.361.3-361
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• 2001

Identification of soybean sprout rot pathogens.

• 한국식물생명공학회:학술대회논문집
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• 한국식물생명공학회 2003년도 추계학술대회 발표논문 초록집
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• pp.113-113
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• 2003