Results 171 to 180 of about 2,854 (190)

Inhibition of Chloroplast-Mediated Reactions by Quizalofop Herbicide

Weed Science, 1988
A mechanism of action of the ethyl ester of quizalofop was determined in monocotyledonous and dicotyledonous plants. Quizalofop inhibited electron transport in both cucumber and corn chloroplasts. In corn, inhibition of electron transport was more pronounced under phosphorylating conditions.
Michael A. Ruizzo, Stanley F. Gorski
openaire   +1 more source

Effects of the herbicides quizalofop-p-ethyl and quizalofop-ethyl on the physiology, oxidative damage, synthesis, and release of microcystin-LR in Microcystis aeruginosa

Science of The Total Environment, 2021
Abstract Quizalofop-Ethyl (QE) is a widely used phenoxy herbicide. It contains two enantiomers, and only its R-enantiomer quizalofop-p-ethyl (QpE) has herbicidal activity. Cyanobacterial blooms caused by Microcystis aeruginosa pose a threat to human health and aquatic environments, but the potential effects of chiral herbicides on M.
Xinyue Yu, Chen Huang, Liang Wu, Sijia Hua, Jing Ye, Liang Meng, Chao Xu   +6 more
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Enantioselectivity in degradation and transformation of quizalofop‐ethyl in soils

Chirality, 2012
AbstractThe enantioselective degradation of quizalofop‐ethyl and its metabolite quizalofop‐acid in two soils, a Wuhan acidic soil and a Baoding alkaline soil, was investigated. The dissipation of quizalofop‐ethyl consisted of two phases, a rapidly deceasing first phase that lasted 1 day and a slowly decreasing second phase that extended till the end of
Zhaoyang, Li, Qiaoling, Li, Fengning, Cheng, Wenshu, Zhang, Weixiao, Wang, Jingyin, Li   +5 more
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Metabolism of quizalofop and rimsulfuron in herbicide resistant grain sorghum

Pesticide Biochemistry and Physiology, 2013
Studies were conducted to determine if herbicide metabolism is an additional mechanism that could explain the resistance of ACCase- and ALS-resistant grain sorghum to quizalofop and rimsulfuron, respectively. ACCase- and ALS-resistant and -susceptible genetic lines were grown under controlled conditions and treated at the 4-leaf stage with (14)C ...
M Joy M, Abit, Kassim, Al-Khatib
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Characterization of glyphosate and quizalofop-p-ethyl multiple resistance in Eleusine indica

Pesticide Biochemistry and Physiology, 2021
Glyphosate and Acetyl-coenzyme A Carboxylase (ACCase) inhibitors are popular herbicides that control goosegrass. However, some populations are difficult to control due to resistance resulting from the increasing selection pressure. The objectives of this research were to detect the multiple resistance levels, resistance mechanisms, and fitness costs of
Jingchao, Chen, Shouhui, Wei, Hongjuan, Huang, Hailan, Cui, Chaoxian, Zhang, Xiangju, Li   +5 more
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Effect of Chlorimuron and Quizalofop on Fatty Acid Biosynthesis

Weed Science, 1992
Chlorimuron antagonized the activity of quizalofop on broadleaf signalgrass when applied in greenhouse studies as a postemergence tank mix. In vitro leaf disc assays utilizing14C-acetate or14C-pyruvate as substrates were conducted to ascertain the effect of clorimuron and quizalofop on fatty acid biosynthesis and to determine if antagonism between the ...
Leslie A. Bjelk, Thomas J. Monaco
openaire   +1 more source

Response of quackgrass biotypes to glyphosate and quizalofop

Canadian Journal of Plant Science, 1991
The response to glyphosate and quizalofop of five quackgrass (Elytrigia repens (L.) Nevski) biotypes treated at the three- to four-leaf and six- to seven-leaf stage was tested. Shoot and rhizome-bud control 1 yr after treatment did not differ among biotypes treated at the three-to four-leaf stage regardless of the herbicides and rates.
François J. Tardif, Gilles D. Leroux
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Foliar Absorption and Phytotoxicity of Quizalofop with Lipid Compounds

Weed Science, 1992
Experiments were conducted to determine the effect of triglycerides, free fatty acids (FFA), and fatty acid methyl esters (FAME) on the foliar absorption, translocation, and phytotoxicity of quizalofop. Absorption, translocation, and phytotoxicity of quizalofop in oats were greater when quizalofop was applied with FFA or FAME than with their respective
Frank A. Manthey, Edward F. Szelezniak, Zbigniew M. Anyszka, John D. Nalewaja   +3 more
openaire   +1 more source

Varying Surfactant Type Changes Quizalofop-P Herbicidal Activity

Weed Technology, 1997
Varying the type of nonionic surfactant greatly changed the biological activity of the ethyl ester of quizalofop-P on giant foxtail, barnyardgrass, and corn. These studies statistically evaluated 22 surfactants with widely different chemical, physical, and surface properties.
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GC–MS/MS method for determining quizalofop ethyl, quizalofop tefuryl, and their metabolites in foods

Journal of Food Composition and Analysis, 2023
Shizuka Saito-Shida, Maki Saito, Satoru Nemoto, Tomoaki Tsutsumi   +3 more
openaire   +1 more source