• Weed & Turfgrass Science
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• 제2권4호
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• pp.395-401
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• 2013

본 연구는 켄터키블루그래스 내에 발생한 크리핑벤트그래스를 방제하기 위하여 제초제를 선발하고, 그 피해 지역에 켄터키블루그래스의 샌드인젝션파종에 의한 회복방법을 개발하기 위해 수행되었다. 약제선발시험에 이용된 제초제는 메코프로프액제(mecoprop; MCPP), 트리클로로 피르티이에이액제(triclopyr-TEA; Tri-T), 이마자퀸액제(imazaquin; Ima), 벤타존액제(bentazone; Ben) 및 페녹슐람 피라조설퓨론에틸입상수화제(penoxsulam pyrazosulfuronethyl; PPE)와 같은 선택성제초제와 글리포세이트액제(glyphosate; Gly), 파라콰트디클로라이드액제(paraquat dichloride; Pad) 및 글리포세이트암모늄 옥시플루오르펜입 상수화제(glyphosate ammonium oxyflorfen; GAO)와 같은 비선택성제초제를 이용하였다. 엽색지수와 엽록소지수 및 방제 효과를 통해 크리핑벤트그래스의 방제에 효과적인 선택성제초제는 Tri-T 배량(2Tri-T)처리이었으며, 비선택성 제초제 중에서는 GAO 1/5량(1/5GAO)이 우수하였다. 크리핑벤트그래스가 침입한 켄터키블루그래스 포장에서 2Tri-T와 1/5GAO의 방제효과는 각각 6.0과 7.4로 우수하였다. 방제지역에 켄터키블루그래스를 샌드인젝션을 통해 파종 후 약 30일 후에는 약 $70{\pm}3%$ 정도의 피복율을 보였고, 50일 후에는 대조구와 비슷하게 회복되었다.

• Weed & Turfgrass Science
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• 제7권2호
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• pp.130-139
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• 2018

The colors of packaging of herbicides and non-selective herbicides on the market in Korea are defined as brown and red, respectively, according to the notification of RDA. The present study aimed to understand consumer's electroencephalographic (EEG) response when looking at brown and red colors of herbicide and non-selective herbicide packaging papers. The EEG cap was placed on the scalp of each participant (men and women, 10 to 20 years old) and white (control) - brown - white - red colors were sequentially displayed for 5 seconds using the computer monitor. The EEG was measured and statistical analysis was performed using SPSS. For the brown color of the herbicide, men showed a decrease in concentration and a distracting response due to a decrease in the ratio of mid beta to theta (RMT) and the spectral edge of frequency (SEF90). In women, an increase in the ratio of SMR to theta (RSMT) and the spectral edge frequency 50% of the alpha (ASEF) was observed in different brain regions and these EEG changes may enhance the relaxation, stabilization and awakening states of the brain. For the red color of the non-selective herbicide, ASEF increased psychological stability in men. In women, a decrease in absolute high beta (AHB) may associate with a decrease in attention state of the brain. Overall data of the present study clearly revealed that the colors of two herbicides showed significantly different EEG response and gender difference.

• 대한영상의학회지
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• 제83권6호
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• pp.1354-1359
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• 2022

글루포시네이트 암모늄은 세계적으로 널리 사용되는 제초제로서, 글루포시네이트 암모늄을 함유하는 제초제의 사용이 증가하면서 그에 따른 급성중독 사례도 증가하고 있는 추세이다. 이에 저자들은 글루포시네이트 암모늄 중독 후 발견되는 뇌 확산자기공명영상 소견에 대해 보고하고자 한다. 증례에서 환자는 양측 속섬유막, 중간소뇌다리, 뇌량팽대에서 세포독성부종 소견을 보였다.

• Weed & Turfgrass Science
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• 제7권3호
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• pp.283-283
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• 2018

• Journal of Plant Biotechnology
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• 제3권3호
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• pp.113-121
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• 2001

The use of a marker gene in a transformation process aims to give a selective advantage to the transformed cells, allowing them to grow faster and better, and to kill the non-transformed cells. In general, the selective gene is introduced into plant genome along with the genes of interest. In some cases, the marker gene can be the gene of interest that will confer an agronomic characteristic, such as herbicide resistance. In this review we list and discuss the use of the most common selective marker genes on plant transformation and the effects of their respective selective agents. These genes could be divided in categories according their mode of action: genes that confer resistance to antibiotics and herbicides; and genes for positive selection. The contention of the marker gene flow through chloroplast transformation is further discussed. Moreover, strategies to recover marker-free transgenic plants, involving multi-auto-transformation (MAT), co-transformation, site specific recombination and intragenomic relocation of transgenes through transposable elements, are also reviewed.

• 고려인삼학회:학술대회논문집
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• 고려인삼학회 1998년도 Advances in Ginseng Research - Proceedings of the 7th International Symposium on Ginseng -
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• pp.103-108
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• 1998

The Canadian production of American ginseng (Panax quinquefolius L.) occurs mainly in Ontario, British Columbia and the Atlantic provinces. Although ginseng is a profitable crop, its successful production is dependent on careful consideration of cultural management f include site selection, site preparation, seed selection and handling, shading actors which and mulching, pest and nutritional management, and handling of harvested crops. Diseases of particular concern in Atlantic Canada are root rots caused by Phytopkthora cactorum, Cylindrocarpon destructans and Fusarium sp. Recently two systemic fungicides (metalaxyl and fosetylal) were registered; however, growers in Atlantic Canada have experienced metalaxyl resistance resulting from the reliance on this single compound for the control of Phytophthora sap. Current research being conducted on alternative control of these diseases will be discussed. In weed control research, 2, 4-D, MCPA, clopyralid have continued to show promise for weed contro1 at low rates. In trials to evaluate non-selective herbicides as post-senescence or pre-emergence in ginseng, glyphosate (Round-up) provided control of perennials as well as willowherb and lambsquarters. In phytoxicity trials, ginseng significantly tolerated grass herbicides, including clethodim, rimsulfuron, trakloxydim, nicosulfuron and fenoxyprop. For broadleaf herbicides, significant tolerance was shown for bromoxynil, thifensulfuron methyl, flumetulam/clopyralid, thifensulfuro/tribenuron. Disease and weed management of ginseng in Atlantic Canada will be discussed.

• 한국응용곤충학회지
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• 제10권1호
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• pp.31-38
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• 1971

콩 재배에 있어서 선택성약제를 찾아내기 위하여 약제에 대한 콩의 저항성실험과 사양토 조건에서 폿트 및 포장실험을 병행하여 얻은 결과를 요약하면 다음과 같다. 1. 콩에 대하여 고도의 선택성이 있어서 표준시용량의 2-3배량 처리로도 정상 생육이 가능한 약해는 Triallate, Lasso, Machete, Propachlor, Nitrofen, MO, Chloroxuron, Nitrofen+Dinoseb 약제등이었다. 2. 약간의 선택성이 있는 약제는(표준시용량의 1-2배 사용) Propazine, Propazine, Diruon, Metabromuron, Swep, Linuron, HE-314, PCP등이었다. 3. 감수성이 예민하여 표준시용량에서도 고사 또는 심한 약해를 낸 약제는 Simazine, Fluorometuron 이었다. 4. Mathete, Lasso, Kerb, Nltrofen, Nitrofen+Dinoseb, Swep, Linuron, Simazine, PCP 등 약제의 폿트 및 포장실험에서의 비교실험 결과에 있어서 가) 심한 약해를 입힌 약제는 Simazine (포장)이었고 Linuron, Kerb 처리구에서도 부분적으로 약간의 약해를 냈다. 나) Nitrofen, Nitrofen+ Dinoseb, Lasso, Machete, Swep는 초기부터 최후까지 전혀 약해를 불수 없었다. 다) 제초효과는 포장에서의 Simazine 처리구를 제외하고 모든 약제가 우수한 결과를 보였다. 라) Simazine, Linuron 처리구에 있어서는 특히 피와 바랭이에 대해 약효가 없는 편이었다. 마) 방등산이와 개망초는 Kerb에 대하여 지항성이었다. 바) Lasso, Machete는 화본과잡초에 매우 강력한 살초력을 가졌으나 여뀌 등이 약간의 내성을 보였다. 5, 콩밭 잡초방제를 위하여 사용된 Lasso, Machete, Nitrofen, Swep, Nitrofen+Dinoseb, Linuron, Kerb 구등은 파종후 1회의 약제 살포로 수확기까지 무제초 방임재배가 가능하며 수량면에서도 관행구에 뒤지지 않는 결과를 얻을 수 있었다.

• Bulletin of the Korean Chemical Society
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• 제10권2호
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• pp.196-200
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• 1989

Some s-triazine herbicides, namely simazine, atrazine, and propazine present as trace components in a complex mixture were analyzed by GC/MS and GC/MS/MS methods. Even though monitoring the molecular ions was the best in terms of sensitivity, adequate analysis could not be done when interfering species were present. When doubly charged ions which appeared at characteristic m/z values were monitored, chromatograms were rather free from interference. More importantly, selected reaction monitoring was found to provide a selective means of detection with general applicability.

• 한국잡초학회지
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• 제17권1호
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• pp.94-111
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• 1997

A relatively wide range of weed technology concerning sound herbicide development, its formulation exploitation, and application techniques was extensively reviewed in accordance with least inputted sustainable agriculture. Herbicide plays an integral part of farmers' cultural practices in Korean agriculture like rest of world over. Weeds are more obstacle to the adaptation of more sustainable agriculture system. Because weeds dictate most of the crop production practices, weed scientists must become the leaders of collaborative integrated approaches to agriculture systems research. Feasible ways to minimize herbicide input involve the positive introduction of low-rate selective chemistries, innovative formulations, biological herbicides and newly developed application technology. Since herbicide will remain to be a core position in weed management for the foreseeable future, research is needed to optimize herbicide application technology and to minimize their impact on the environment. Public concerns and regulatory pressures on agricultural chemicals are likely to strengthen throughout this decade and coming. Researchers, pesticide manufacturing industries and regulatory authorities have to work together more closely, leading to understand each other better, as well as the needs of our customers and those of society. To be taken extensively, weed control management practices in the future have to be accepted such a way the respective demands of environment, society and economics are entirely matched.

• Journal of Microbiology and Biotechnology
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• 제15권2호
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• pp.434-437
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• 2005

During the screening for the inhibitors of cellulose biosynthesis as herbicides, we discovered a Streptomyces sp. A6497 with a selective antifungal activity against cellulose containing Phytophthora parasitica, but not against cellulose lacking Candida albicans. The inhibitor was isolated and identified, using a series of chromatographies. Based on structure analyses with UV spectrophotometry, mass and various NMR, the inhibitor was identified as sangivamycin. The compound exhibited strong antifungal activities against P. parasitica (MIC; 3.125 $\mu$g/ml). In particular, it showed strong herbicidal activities against various weeds in the greenhouse experiment. Taken together, these results suggest that sangivamycin is a useful lead compound for the development of new herbicides.