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- 주제어 : Quinclorac (검색결과 10 건)
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임일빈,구자옥,이도진,Im, I.B.,Guh, J.O.,Lee, D.J. 한국잡초학회 1989 Weed&Turfgrass Science Vol.9 No.1
1986년(年)에 전국적(全國的)으로 수집(蒐集)한 강피 6 수집종(蒐集種)과 피(돌피, 물피) 17수집종(蒐集種)을 곤시(供試)하여 pyrazolate, bifenox 및 quinclorac 에 대한 감수성(感受性)및 내성반응(耐性反應)을 검정(檢定)한 결과(結果)는 다음과 같다. 1. Pyrazolate에 의한 백화고사반응(白化枯死反應)은 강피종(種)보다 피종(種)이 감수적(感受的)이었으며, 피종(種) 중(中)에서도 구미, 이천(利川)-A, 이천(利川)- B, 부은(報恩)-B 및 광주(光州)-B 종(種)은 특(特)히 감수성(感受性)이 컸고, 격주(慶州), 안성(安城), 보은(報恩)-A, 정주(井州)-A 및 광주(光州)-A 종(種)은 강피보다 내성(耐)性이 컸다. 2. Bifenox에 의한 twisting 및 생장억제반응(生長抑制反應)은 강피 종(種이) 내성(耐性)이면서 종내변이(種內變異)가 작았던 반면(反面), 피종(種)은 감수성(感受性)이면서종내변이(種內變異)가 컸다. 피종중(種中)에서도 보은(報恩)- B, 안성(安城), 이천(利川)-A, 이천(利川)- B, 원주(原州) 및 광주(光州)-B 종(種)은 특(特)히 감수성(感受性)이었던 반면(反面)에, 진양(晋陽), 정주(井州)-A, 정주(井州)-B, 대전(大田), 구례(求禮) 및 광주(光州)-A종(種)은 강피와 비등(比等)한 내성(耐性)올 보였다. 3. Quinclorac에 의한 생장억제(生長柳制) 및 고사반응(枯死反應)은 강피종(種)이 감수성(感受性)이면서 종내변이(種內變異)가 작았던 반면(反面), 피종(種)은 내성(耐性)이면서도 종내변이(種內變異)가 컸다. 피종(種)가운데 보은(報恩)-A, 이리(裡里), 정주(井州)-A, 정주(井州)-B, 광주(光州)-A 및 광주(光州)-B는 강피와 비등(比等)한 감수성(感受性)이었으나, 김해(金海), 경주(慶州), 구미, 원주(原州), 이천(利川)-A. 이천(利川)-B 및 안성종(安城種)은 강(强)한 내성(耐性)을 보였다. 4. 강피종(種)은 pyrazolate와 bifenox에 내성(耐性)이면서 quinclorac 에는 감수성(感受性) 경향(傾向)이었고, 피종(種)은 이들 반응(反應)에 일양성(一樣性)이 없었다. 즉, 3 약제(藥劑) 모두에 내성(耐性)인 피종(種)은 구례(求禮), 김해(金海) 및 대전종(大田種)이었고. pyrazolate 및 bifenox 에 내성(耐性)이면서 quinclorac에 감수성(感受性) 종(種)은 이리, 정주(井州)-A, 정주(井州)-B, 광주(光州)-A종(種)이었으며. 이와 반대반응(反對反應)을 보인 것은 구미, 원주(原州), 이천(利川)-A, 이천(利川)-B, 보은(報恩)-B 및 광주(光州)-B종(種)이었다. 5. 피 수집종(蒐集種)에 대한 반응경향(反應傾向)으로 볼 때, pyrazolate와 bifenox는 서로 유사(類似) 경향(傾向)이었으나 quinclorac은 이들과 상치(相値)되는 반응경향(反應傾向)이었다. The six barnyardgrass [Echinochloa oryzicola (vasing.) Vasing.] and seventeen barnyardgrass [Echinochloa crus-gadli (L.) Beauv.] accessions, which were collected national widely in 1986 and selected two times through 1987. To study different growth response due to herbicide, pyrazolate, bifenox, quinclorac, the experiment was conducted with herbicide agar culture without nutrients, 1. Albinistic discoloration due to pyrazolate was more sensitive in E, crus-galli than E. oryzicola and among barnyardgrass accessions, Kumi, Ichon-A, Ichon-B, Boun-B and Kwangju-B were rather susceptible than Gyongju, Ansong, Boun-A, Jongju-A and Kwangju-A. 2. Twisting and growth retardation due to bifenox was less sensitive in E. oryzicola with less intra-specific variations than in E. crus-galli. Among E. crus-galli accessions, Boun-B, Ansong, Ichon-A, Ichon-B, Wonju and Kwangju-B were particulary susceptible, and Jinyang, Jongju-B, Jongju-A, Daejon, Kurye and Kwangju-A were tolerant as much as E. oryzicola. 3. Growth retardation and withering to dead due to quinclorac was more sensitive in E. oryzicola with less intra-specific variations than in E. crus-galli. Among accessions of E. curs-galli, Boun-A, Iri, Jongju-A, Jongju-B, Kwangju-A and Kwangju-B were rather similar suseptible to E, oryzicola than kimhae, Gyongju, Kumi, Wonju, Ichon-A, Ichon-B and Ansong. 4. Most accession of E. oryzicola was tolerant to both pyrazolate and bifenox, while susceptible to quinclorac. Among other accessions of E. crus-galli, Kurye, Kimhae, and Daejon were tolerant to all experimented herbicides, and Iri, Jongju-A, Jongju-B, and Kwangju-A were only tolerant to both pyrazolate and bifenox, while Kumi, Wonju, Ichon-A, Ichon-B, Boun-B and Kwangju-B were only tolerant to quinclorac.
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Le Duy,Nguyen M. Chon,Richard K. Mann,Bobba V. N. Kumar,Mauricio A. Morell 한국작물학회 2018 Journal of crop science and biotechnology Vol.21 No.1
Barnyardgrass (Echinochloa crus-galli) seed samples were collected in rice fields in different locations at Mekong delta in Vietnam for herbicide resistance tests. The ALS-resistant and synthetic auxin-resistant E. crus-galli were confirmed at several locations in the Mekong Delta. The average LD90 value of bispyribac, penoxsulam and quinclorac for assessed weed populations was 33.1, 15.1 and 550.2 g a.i.ha-1 respectively. There were cross resistant barnyardgrass populations to bispyribac and penoxsulam, the LD90 value of the two ALS inhibitors for E. crus-galli was positively correlated at R2=0.39, the cross resistant population was 33.3% of total sample. The correlation analysis was not useful to evaluate the multiple resistance between quinclorac and the two ALS inhibitors, the R2 value was lower than 0.05, however, the percentage of multiple resistance weed was 36.2% of population. There was no cross resistance or multiple resistance among the 3 tested herbicides and the new synthetic auxin herbicide RinskorTM. All tested weed samples, including quinclorac-resistant populations, were effectively controlled by RinskorTM. There was no difference between control from RinskorTM in the different herbicide resistant populations. Average LD90 value of RinskorTM in all tested barnyardgrass was 17.1 g a.i ha-1.
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Duy Le,Chon M. Nguyen,Richard K. Mann,Carla N. Yerkes,Bobba V. N. Kumar 한국식물생명공학회 2017 JOURNAL OF PLANT BIOTECHNOLOGY Vol.44 No.4
Barnyardgrass (Echinochloa crus-galli) is one of the worst weeds in rice (Oryza sativa), but there are few reports about the genetic diversity and herbicide resistance of barnyardgrass in Vietnam. In this study, we used random amplified polymorphic DNA (RAPD) analysis and greenhouse testing to study the genetic diversity and quinclorac resistance levels of 15 Echinochloa crus-galli populations in the Mekong Delta, Vietnam, and the state of Arkansas, U.S. The quinclorac resistance of Echinochloa crus-galli populations in Vietnam was confirmed; 9 populations were resistant to quinclorac with R/S ratios ranging from 1.9 to 6.3. Six oligonucleotide primers produced a total of 55 repeatable bands of which 46 were polymorphic (83.3% average) among the 15 populations. Genetic distance was calculated, and cluster analysis separated the 15 populations into 2 main clusters with the genetic distances within the clusters ranging from 0.09 to 0.39. The two main clusters were divided into 7 subclusters, and the quinclorac resistant and susceptible populations were located randomly within each subcluster. Six out of 13 weed populations from Vietnam belonged to one cluster and a single Echinochloa species. The remaining 7 populations were identified as potentially different species in the Echinochloa genus. Nine Echinochloa populations from Vietnam were tested and identified as quinclorac resistant. The connection between quinclorac resistance levels and weed groups defined by RAPD analysis in the study is unclear; the quinclorac resistance of each resistant population could have evolved individually, regardless of differences in genetic diversity and location of the sampled populations.
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Le, Duy,Nguyen, Chon M.,Mann, Richard K.,Yerkes, Carla N.,Kumar, Bobba V.N. The Korean Society of Plant Biotechnology 2017 식물생명공학회지 Vol.44 No.4
Barnyardgrass (Echinochloa crus-galli) is one of the worst weeds in rice (Oryza sativa), but there are few reports about the genetic diversity and herbicide resistance of barnyardgrass in Vietnam. In this study, we used random amplified polymorphic DNA (RAPD) analysis and greenhouse testing to study the genetic diversity and quinclorac resistance levels of 15 Echinochloa crus-galli populations in the Mekong Delta, Vietnam, and the state of Arkansas, U.S. The quinclorac resistance of Echinochloa crus-galli populations in Vietnam was confirmed; 9 populations were resistant to quinclorac with R/S ratios ranging from 1.9 to 6.3. Six oligonucleotide primers produced a total of 55 repeatable bands of which 46 were polymorphic (83.3% average) among the 15 populations. Genetic distance was calculated, and cluster analysis separated the 15 populations into 2 main clusters with the genetic distances within the clusters ranging from 0.09 to 0.39. The two main clusters were divided into 7 subclusters, and the quinclorac resistant and susceptible populations were located randomly within each subcluster. Six out of 13 weed populations from Vietnam belonged to one cluster and a single Echinochloa species. The remaining 7 populations were identified as potentially different species in the Echinochloa genus. Nine Echinochloa populations from Vietnam were tested and identified as quinclorac resistant. The connection between quinclorac resistance levels and weed groups defined by RAPD analysis in the study is unclear; the quinclorac resistance of each resistant population could have evolved individually, regardless of differences in genetic diversity and location of the sampled populations.
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Quinclorac and Paraquat Behavior and Safety of Herbicides in the Environment
Kwon, Yong-Woong 서울대학교 농업개발연구소 1999 농업생명과학연구 Vol.3 No.-
1)Behavior of Quinclorac in Paddy Soil, a Rice Herbicide: We found that quinclorac is quite easily and much adsorbed to and desorbed from the soil. This untight binding of quinclorac to soil confers it the mobile nature in the water-flowing paddy field. Quinclorac showed the coefficient of distribution between soil and soil-water(Kd) from 6.22 to 17.85, and the Freundlich adsorption coefficient(Kf) of 12.483. The adsorption of quinclorac onto soil seems more affected by organic matter than the property of clay mineral particles. The Kf value for desorption was 12.0814, which was very close to the Kf of adsorption.. With these and other supporting data. we suggest that the adsorption is not the main cause for its after-crop troubles, but the extreme sensitivity of tomato and other Solanaceae crops and the easier desorption of it with flow of soil-water are. 2)Environmental Safety of Soil-Residual Paraquat: Paraquat has been used for weed control in orchards and non-cropland of Korea since 1970. Its total consumption by 1995 amounted to 11,623,675 kg as paraquation:this equals, on average for 26 years, to twice-sprayings at recommended rate onto 419,910 ha a year. Special review study for the environmental safety of paraquat was asked, in part, to us by National Regulatory Committee of Pesticides. Through studies we found that paraquat residue in the Korean soil is environmentally safe, and continued use of paraquat in future in not abnormal way would surely be environmentally safe. Typical orchard and paddy soils of Korea could adsorb paraquat as much as 4,805 and 6,382 mg/kg soil, respectively. Adsorption was very rapid:completion within an hour when adquate soil-water was provided. Korean soil is mostly of kaolinite having CEC average ca. 10 me/100g soil. The strong adsorption capacity(SAC-WB) of Korean orchard soils was average 230.88 and 276.13 ppm in 1996 and 1997 surveys, respectively. Strongly bound paraquat did not leach out to the environment, and was not uptaken by plants even in the kaolinite based soil which binds cations most weakly among different clay minerals. Paraquat residues in 60 orchard soils were average 8.10 ppm in 1996, and 6.97 ppm in 1997. Except for an extreme case of 35.02 ppm, most orchard plough soil(two thirds of 120 orchards) contained bound-paraquat less than 15 ppm.
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Lezhu Su,Lizhou Ou,Yujiao Wen,Yifan Wang,Weilin Zhao,Zhi Zhou,Mei-e Zhong,YONGFA ZHU,Nan Zhou 한국공업화학회 2021 Journal of Industrial and Engineering Chemistry Vol.102 No.-
Exploring catalyst materials which are advancing, recyclable and with high catalytic performances toremove persistent organic pollutants such as Quinclorac (QNC) is important. In this work, a novel Ndopedcarbon support CoFe2O4/Fe0 hybrid catalyst (CFO/Fe@C) was in situ formed by a simple coprecipitationand calcination process. Fine intergrowth crystal CoFe2O4 and Fe0 were uniformly dispersedon the N-doped porous carbon that derived from the raw material Ethylene Diamine Tetraacetic Acid(EDTA), which also provided chelating effect to prevent the agglomeration of the metals. Interestingly,the Fe0 could only be formed with the presence of cobalt, possibly due to the increased reduction propertyresulted from the particle refinement. The as-formed Fe0 could not only activate the peroxymonosulfate(PMS) but also reduce the Co3+, resulting in a synergistic impact to remarkably enhance thedegradation performance. Besides, the N-doped porous carbon can also benefit the degradation of pollutantby strengthening the electron transfer. A good degradation efficiency of QNC was obtained in CFO/Fe@C-PMS system and most of the QNC had been degraded to carbon dioxide, water and other smallmolecular organisms. The removal rate remained over 70% after four reuses and the material could beeasily recovered from the solution due to the good magnetic properties. Therefore, the as-preparedCFO/Fe@C catalyst should be an ideal catalyst for the removal of organic pollutants.
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최재천,이영자,김소희,최수영,최희주,정성욱,박흥재,김우성 한국환경과학회 2005 한국환경과학회지 Vol.14 No.4
A simple and sensitive analytical method based on RP-HPLC with UV detector(225 nm) and mobile phases using 0.1% phosphoric acid and acetonitrile was developed for simultaneous determination of quinclorac, bentazone, 2,4-D, bensulfuron-methyl, dymuron, capropamide, pencycuron, ethofenprox. This method was resulted in recovery of 78~ 96% with RSD 3.3~7.5%. LODs 0.12~0.84 and LOQs 0.34~1.20 ㎎/L. Calibration curves were linear with r of 0.9995~ 0.9999.
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