Results 181 to 190 of about 5,446 (214)

Enantioselective Degradation of Rac-Metolachlor and S-Metolachlor in Soil

Pedosphere, 2006
ABSTRACT Separation of chiral enantiomers and the dissipation of rac-metolachlor and S-metolachlor in soil were evaluated using achiral high-performance liquid chromatography (HPLC) and chiral gas chromatography (GC) methods. Under the experimental conditions the possible metabolite was considered to be N-(2-ethyl-6-methyl-phenyl)-2-hydroxy-acetamide.
Yun MA, Wei-Ping LIU, Yue-Zhong WEN
exaly   +4 more sources

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Metolachlor, S-metolachlor and their role within sustainable weed-management

Crop Protection, 1998
Abstract The herbicide metolachlor has been widely used for over 20 years for selective weed control in more than 70 crops worldwide. Its favourable soil behaviour and low risk for developing weed resistance means that metolachlor integrates well into sustainable weed-management practices, such as conservation tillage.
Peter J. O'Connell, Christian T. Harms, James R.F. Allen   +2 more
exaly   +2 more sources

Mitigation of atrazine, S-metolachlor, and diazinon using common emergent aquatic vegetation

Journal of Environmental Sciences, 2017
By the year 2050, the population of the United States is expected to reach over 418 million, while the global population will reach 9.6 billion. To provide safe food and fiber, agriculture must balance pesticide usage against impacts on natural resources.
Matthew T, Moore, Martin A, Locke, Robert, Kröger   +2 more
openaire   +2 more sources

Effects of the herbicides linuron and S-metolachlor on Perez's frog embryos

Chemosphere, 2018
Presence of pesticides in the environment and their possible effects on aquatic organisms are of great concern worldwide. The extensive use of herbicides in agricultural areas are one of the factors contributing to the known decline of amphibian populations.
Carla, Quintaneiro, Amadeu M V M, Soares, Marta S, Monteiro   +2 more
openaire   +2 more sources

Tolerance and phytoremediation capacity of atrazine and S-metolachlor by two duckweeds

Environmental Science and Pollution Research
The phytotoxicity and removal of atrazine and S-metolachlor in sterile duckweed systems were estimated in this study. Herbicides were added at environmentally relevant ranges: 0-400 µg/L for atrazine or 0-200 µg/L for S-metolachlor in systems with Spirodela polyrhiza or Lemna minor.
Fernanda Vieira da Silva Cruz, Humberto Soares Caldeira Brant, Leanne Ohlund, Lekha Sleno, Philippe Juneau   +4 more
openaire   +2 more sources

Endocrine and physiological effects of linuron and S-metolachlor in zebrafish developing embryos

Science of The Total Environment, 2017
Evaluation of the effects of linuron and S-metolachlor on apical, biochemical and transcriptional endpoints in zebrafish (Danio rerio) early life stages was the main purpose of this work. Embryos were exposed for 96h to a range of concentrations of each herbicide to determine lethal and sub-lethal effects on apical (e.g.
Quintaneiro, C., Patrício, D., Novais, Sara, Soares, A.M.V.M., Monteiro, M.S.   +4 more
openaire   +3 more sources

[Toxicity effects of Rac- and S-metolachlor on two algaes].

Huan jing ke xue= Huanjing kexue, 2013
The enantioselective toxicity of the chiral herbicides Rac- and S-metolachlor to Scenedesmus obliquus and Chlorella vulgaris was determined, and the effect of humic acid was studied by using acute toxicity testing method. The results indicated that the toxicity of Rac- and S-metolachlor increased with increasing concentration and exposure time.
Wei-Dan, Cai, Hui-Jun, Liu, Zhi-Guo, Fang   +2 more
openaire   +1 more source

Bacterial communities in batch and continuous-flow wetlands treating the herbicide S-metolachlor

Science of The Total Environment, 2014
Knowledge of wetland bacterial communities in the context of pesticide contamination and hydrological regime is scarce. We investigated the bacterial composition in constructed wetlands receiving Mercantor Gold(®) contaminated water (960 g L(-1) of the herbicide S-metolachlor, >80% of the S-enantiomer) operated under continuous-flow or batch modes to ...
Elsayed, O.F., Maillard, E., Vuilleumier, S., Imfeld, G.   +3 more
openaire   +3 more sources

S-Metolachlor Volatilization from Plants within a Flux Chamber

ACS Agricultural Science & Technology, 2022
Arpad Z. Szarka, Shanique Grant, Saikat Ghosh, Shealyn Hollingshead, Louis C. Mayer, Alexandra P. Williams, Kevin Crist   +6 more
openaire   +1 more source

Ecotoxicity of nicosulfuron and S-metolachlor-based herbicides on non-target plants

Journal of Toxicology and Environmental Health, Part A
Herbicides have been extensively researched due to widespread use in agriculture, consequently raising concerns regarding their environmental impact and potential adverse effects on non-target organisms, including humans. Nicosulfuron is a post-emergence herbicide used to control annual or perennial grasses and broad-leaved weeds.
Rafaela Carvalho de Souza, Leonardo Mendes Silva, Murilo Jovino Moraes, Larissa Fonseca Andrade Vieira   +3 more
openaire   +2 more sources