• 한국환경농학회지
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• 제32권3호
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• pp.193-200
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• 2013

형광등이나 LED와 같은 인공광을 사용하는 식물공장(인공광 식물공장)은 계절에 상관없이 광, 온도 및 습도 등을 인위적으로 제어하면서 작물을 안정적으로 연중 생산할 수 있는 시스템이다. 본 연구에서는 수경재배 방식을 채택하고 있는 인공광 식물공장 시스템 내에서 엽채재배용 배양액을 이용한 방풍나물의 수경재배 가능성과 혼합광질이 생장에 미치는 영향을 검토하였다. 방풍나물은 청색과 적색 LED를 1:1 및 1:3의 비율로 혼합한 혼합광 조건에서 90일간 수행하였다. 광원의 광강도는 $100{\mu}mol/m^2/s$로 설정한 후 30일 간격으로 지상부 잎을 3회 수확하여 생장량을 조사하였다. 재배기간 동안 형광등과 LED의 혼합광 조사는 방풍나물 지상부 생장에 유의한 영향을 미치는 것으로 나타났다. 재배개시 30일째 방풍나물 지상부 생체중 및 건물중은 형광등+청색+적색의 혼합광(청, 적색 혼합비율 1:3, FLBR13구)에 의한 영향을 받아, 대조구인 형광등 조사구(FL구)에 비해 각각 3.7배 및 2배 증가하였다. 또한 식물체당 전개엽수는 FLBR13구에서 형광등+청색+적색 혼합광(청, 적색 혼합비율 1:1) 조사구인 FLBR11구에 비해 유의하게 증가하였다. LED와 형광등을 혼합 조사한 처리구에서와 같이, 형광등을 혼합하지 않고 청색과 적색의 LED만을 혼합하여 조사한 처리구에서도 청색과 적색의 혼합비율이 1:1인 BR11구에 비해 적색광의 혼합비율을 3배 증가시킨 BR13구에서 방풍나물의 지상부 생장이 촉진되었다.

• The Plant Pathology Journal
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• 제22권3호
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• pp.283-288
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• 2006

Trichoderma harzianum YC459 (Th 459), isolated from sawdust compost, was effective in controlling cucumber and tomato gray mold caused by Botrytis cinerea under controlled and plastic film tunnel conditions. A water suspension of the wettable powder formulation of Th 459 significantly $(P\leq0.05)$ reduced the severity of cucumber gray mold by foliar spraying at all tested concentrations from $10^5\;to\;10^8$ colony forming unit (cfu)/ml in repeated experiments. The control efficacy was maintained at least seven days with the average control value of 70% in cucumber pot tests. Mixing one to eight grams of the granular formulation ($10^8cfu/g$ dry weight) of Th 459 into one liter nursery potting mix at seeding also significantly $(P\leq0.05)$ reduced the severity of cucumber gray mold by suppression of lesion formation three weeks after treatment. Application of mixing granular formulation at seeding in combination with foliar spraying during cultivation provided a more significant reduction $(P\leq0.05)$ of cucumber gray mold than granule mixing or leaf spray alone. The foliar spraying of the formulated wettable powder of Th 459 significantly $(P\leq0.05)$ reduced the infection of tomato fruits by B. cinerea as effective as the chemical fungicide, dichlofluanid, in three plastic film tunnel experiment trials. It is suggested that effective control of gray mold of cucumber and tomato can be provided by both treatment of Th 459 into potting mix and foliar spray through induction of systemic resistance and direct inhibition of the pathogen.

• 원예과학기술지
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• 제34권2호
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• pp.242-248
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• 2016

This research was conducted to determine the effects of four different substrates, expanded rice hulls (ERH), commercial substrates for strawberries (CSS), clay sand (CS), and loamy sand (LS), on the inhibition of anthracnose crown rot (ACR) in strawberry. Mother plants of 'Seolhyang' strawberry were transplanted into an elevated bed in March, 2013 and March, 2014 and the runners connecting mother plants and daughter plants were cut in early August of both years. After separation, growth characteristics of the daughter plants were measured and then each daughter plant was inoculated with conidial suspensions of Colletotrichum fructicola, one of several species of Colletotrichum that causes ACR in strawberries. The incidence of ACR as influenced by the different substrates was investigated in both years. The daughter plants grown on CSS had the highest values for shoot height, leaf area, and fresh weight. Those grown on ERH and LS substrates also displayed good above-ground growth characteristics except for fresh weight, but the daughter plants grown on CS had the poorest above-ground growth characteristics. The ERH and CS treatments resulted in the highest number of primary roots and the greatest root weight. The CSS-grown daughter plants had the highest ACR disease index, followed by the CS and LS treatments, but there were no significant differences among the three substrates. However, the ERH-grown daughter plants had a markedly lower ACR disease index on October 11, 2013 and October 7, 2014. The CSS-grown daughter plants had high nitrogen and potassium contents and low calcium content, whereas the ERH-grown daughter plants had low nitrogen levels and high silicon levels. The results of this study provide basic information on the ability of the different substrates tested to provide disease suppression of ACR in the propagation of strawberry transplants.

• 한국작물학회지
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• 제41권6호
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• pp.704-709
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• 1996

모시풀의 경편과 흡지의 배양을 통하여 완전한 식물체를 대량증식하기 위하여 소독방법과 생장조절제 처리 효과에 대한 기내배양을 실시하여 다음과 같은 결과를 얻었다. 1. 모시풀 경편 배양시 소독은 초음파세체기를 이용한 2% NaClO를 20분 동안 하였을때 오염률이 3.3%로 가장 낮았으며, 식물체도 79%가 생존하였고, 건실한 묘를 생산할 수 있었다. 2. 생장조절제 처리효과에서는 NAA(0.02mg/$\ell$)+ BA(1.5mg/$\ell$) + GA3(0.1mg/$\ell$) 혼합처리가 캘러스 형성이 안되고, 식물체 형성률이 96%였으며, 건실한 묘를 생산할 수 있었다. 3. 치상부위별로는 흡지보다 경편배양이, 품종별로는 개량종인 서방종보다 재래종인 보성종이 증식효률이 높았다. 4. 순화 효율은 상토 배합과 호르몬 처리에 있어서 버미큐라이트 : 모래 ：황토 =1 : 1 : 1의 배합과 NAA 1000ppm을 30분간 담근 후 이식한 순화율이 99%로서 건실하였으며, 식물체는 대부분 정상이었다.

• 상하수도학회지
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• 제28권3호
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• pp.299-304
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• 2014

The need of reusing sewage sludge is highly increasing as the amount of domestic sewage sludge is growing and sewage management strategies were reinforced. Accordingly, in this research, we studied the composting possibility of sludge in sewage treatment plant J, using dryer facility with indirect system by conducting component analysis of dried sludge and experiment on cultivating crops. It was observed from the component analysis, that the dried sludge is appropriate for both decomposed manure standard of Ministry of Environment and fertilizer standard of Rural Development Administration. Besides, in the experiment on cultivating lettuce, the experimental group(soil + dried sludge) was superior to the control group(soil + bed soil) in apparent condition of leaves tensity and damage by disease and pest. In case of cultivating tomato, the experimental group showed stronger durability of fruits dangling on stems compared to the control group after 9 weeks. Consequently, the excess sludge dried by indirect heating system in the sewage treatment plant J is appropriate for the standard of both Ministry of Environment and Rural Development Administration and show good result in experiment on cultivating crops therefore it can be reused for composting.

• 한국환경과학회지
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• 제25권7호
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• pp.999-1005
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• 2016

The H water treatment plant has been operating since 1982 and has had no renovation. It is assumed that the filters have been operated for more than 30 years and therefore are deteriorated. Many of the filters show an unequal state of air scouring during backwashing. For this study one filter, which was presumed most deteriorated among eighteen filters, was selected as a model filter for renovation. Some of the effects seen after renovation of the underdrain system were a lower average filtrated turbidity by approximately 0.02 NTU and an equal backwash state throughout the filter bed. Sand wash efficiencies by backwash before renovation of the underdrain system were 28%, 8%, and 5% at the surface, 50 cm depth, and 100 cm depth, respectively, and after renovation of the underdrain system were 94%, 26%, and 15%, respectively. The standard deviation of the effective sand size was 0.025-0.033 mm before renovation of the underdrain system and 0.002-0.011 mm after renovation of the underdrain system, meanings there was equal backwash pressure throughout the filter. Filtration time after renovation was approximately 2 times longer than before renovation.

• 식물병연구
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• 제6권1호
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• pp.39-42
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• 2000

배추무사마귀병 방제약제의 연용횟수에 다른 방제효과를 조사하기 위해 후루설파마이드분제 처리시 방제가는 1회 단용 24.5%, 2회 연용 84.0%, 3회 연용 88.6%로 약제를 연용할수록 높아졌으며, 10a당 상품수량도 각각 4,968~5,779kg으로 높았다. 후루설파마이드분제 2회 연용 후 3회 재배시 방제가는 53.9%로 다소 낮았으며 10a당 상품수량은 4,822kg으로 약제비, 노동력 투여 등을 고려할 때 3회 연용 재배보다 2회 연용후 3회재배가 경제적 방제수준으로 여겨진다. 방제약제 처리방법개선시험에서는 후루설파마이드분제 시용시 농가관행인 토양환화 처리의 방제가는 봄재배 61.5%, 가을재배 48.9% 에 비하여 상토혼화+재배지토양혼화 처리시 각각 7.6%, 64.4%로 높았으며, 10a당 상품수량도 토양혼화처리구 봄재배 3,167kg, 가을 재배 2,847kg에 비하여 82~98% 증수하여 효과적인 처리방법이었다.

• 한국자원식물학회:학술대회논문집
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• 한국자원식물학회 2010년도 정기총회 및 춘계학술발표회
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• pp.11-11
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• 2010

패모(貝母)는 땅속의 뿌리줄기에 있는 2매의 비늘조각(인편(鱗片))이 마치 조개처럼 합쳐 있어 패모라 불리우며, 백합과로 숙근성 다년생 초본의 절패모(浙貝母; Fritillaria thungergii) 및 동속식물의 비늘줄기를 기원으로 하며, 중국의 강소 절강 안휘 등지에서 대량으로 재배되고 있다. 패모의 줄기는 15~40cm정도로 곧게 자라며, 꽃은 4~5월에 피며, 윗부분의 엽액에 1개씩 밑을 향하여 달린다. 종자는 결실률이 매우 낮아 이용을 할 수 없어 번식은 대부분 비늘줄기의 인편이나 자구를 이용한다. 약용부위는 인경(鱗莖)(비늘줄기)이 사용되는데, 인경(鱗莖)에는 알칼로이드물질인 verticine, fritillin, peimisine, peimine 등의 주요 성분을 함유하여 약리작용으로는 중추신경마비, 혈압강하 및 진해작용이 있다. 한방에서는 진해, 거담, 배농, 폐렴, 기관지염 등으로 이용하는 중요한 약초 중의 하나이나, 값싼 중국산 패모의 수입으로 우리나라에서는 재배가 붕괴되어 현재는 재배면적이 거의 없는 자원고갈 약초로 재배면적 확보가 시급한 실정에 있어 이를 되살리기 위한 노력이 절실한 실정이다. 따라서 패모 자구 증식을 위하여 온도와 $GA_3$, 상토의 조건에 따른 시험을 수행한 결과 패모 자구의 증식 효과는 저장온도 온도가 낮을수록 자구의 증식이 많아 $5^{\circ}C$에서 주당 5.5개로 구수의 증식효과가 높았으며, 상토는 모래와 밭흙에서 각각 3.1개, 2.5개로 많았으나, $GA_3$과 온탕처리에 있어서는 차이가 없었다.

• 식물조직배양학회지
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• 제28권5호
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• pp.273-276
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• 2001

두릅나무의 체세포배 유래 소식물체의 효과적인 순화 방법을 개발하고자 플라스틱 용기를 사용 4가지 인공배양토 및 MS 액체배지 등 7가지 수용액 처리를 통해 활착률 및 생장을 조사하였다. 상토는 perlite가 vermiculite보다 활착 및 생장에 양호하였고, 입자가 클수록 활착률 및 생장이 좋았다. 액체배지는 2차 증류수 처리가 가장 양호하여 96%의 활착률을 나타냈으며, 염류농도를 1/4 및 1/8로 낮춘 MS배지는 각각 92%의 활착률을 보인 반면 기본배지 및 1/2 MS배지는 활착률이 저조하였다. 한편 0.1% hyponex와 2% sucrose 처리는 84% 및 76%의 활착률을 각각 나타냈다. 결론적으로 두릅나무의 체세포배 유래 소식물체의 순화는 입자가 큰 perlite를 사용하고 증류수 처리 혹은 염류 농도를 낮춘 MS배지 처리로 효과적인 순화가 가능함을 보여주었다.

• 한국환경복원기술학회지
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• 제21권4호
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• pp.75-86
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• 2018

This research was thereby made to study and analysis ecological, landscape, and stability qualities of roadside cut Slopes in expressways and national highways that went through revegetation works. Also, evaluation items and framework for integrated assessment of plant structure and restored state for the maintenance were suggested. Following is the summary of the result. firstly, for stabilization of introduced native plant species on roadside cut slops, assessment on the post-project environmental management through long-term monitoring and maintenance works must be made. It signifies a form of authentic recovery and restoration by the native plants. second, current evaluation framework on the test beds is well managed with clear evaluation standards and table while its method of assessing the post management with only test bed results lacks conformity with this study site. Newly developed evaluation framework on the post construction sites is estimated to be used as assessment standards on any roadside construction sites. Third, after site investigation distinction was observed among different revegetating construction types in the long-term perspective. Due to the different duration time of vegetation state between seed-spray measures(degraded in time) and layer-spray measure(maintained), the use of coarse straw-mat mulching work or Coir net was suggested in long term maintenance of cut slopes. forth, segmentation of post environmental assessment is organized into three large categories of "ecological", "stabile", and "landscape" qualities regarding post restoration quality and stability of slope through native plants with which categories marks 50, 30, 20 points of rates. fifth, components of the post environmental assessment were segmented in twelve categories driving results from former experimental construction and newly focused items on site. In the future, it is possible to propose a customized assessment method considering the location and location of construction work if the research on the application of post-environment assessment methods for road construction surface recording is conducted systematically.