Results 221 to 230 of about 6,478 (269)

Clomazone exposure-driven photosynthetic responses plasticity of Pontederia crassipes

Environmental Science and Pollution Research
Clomazone is known to contaminate aquatic environments and have a negative impact on macrophytes. However, recent reports suggests that Pontederia crassipes Mart. can withstand clomazone exposure while maintaining growth rates. We hypothesized that this maintenance of growth is supported by photosynthetic plasticity of old leaves (developed before ...
Bianca Jaqueline Santos Rodrigues, Igor Alexander de Moura Silva, Marcelo Dos Santos Silva, D. Posso, C. M. Hüther, Luciano do Amarante, M. A. Bacarin, J. Borella   +7 more
semanticscholar   +3 more sources

Characterization of the clomazone sorption process in four agricultural soils using different kinetic models.

Environmental Science: Processes & Impacts, 2023
Kinetic studies are important for understanding the parameters and processes involved in the sorption of pesticides to soil. Considering the agricultural and environmental relevance of clomazone, its sorption kinetics was studied in four agricultural ...
R. Ðurović-Pejčev, Svjetlana Radmanović, Z. Tomic, L. Kaluđerović, T. Đorđević   +4 more
semanticscholar   +1 more source

Microbial Transformations of Clomazone

Journal of Agricultural and Food Chemistry, 1996
Common soil fungi and bacteria were screened for their abilities to biotransform the herbicide clomazone (2-[(2-chlorophenyl)methyl]-4,4-dimethyl-3-isoxazolidinone) into metabolites. Preparative-scale incubations were conducted with Aspergillus niger (UI-X172) and Cunninghamella echinulata (NRRL-3655) to obtain metabolites in sufficient quantities for ...
Song Yu Liu, Mark Shocken, John P. N. Rosazza   +2 more
openaire   +1 more source

Effects of Starch Encapsulation on Clomazone and Atrazine Movement in Soil and Clomazone Volatilization

Weed Science, 1995
The effects of formulation on clomazone volatilization and transport through soil were studied. After 22 days of leaching under unsaturated flow in 49-cm long intact soil cores, greater clomazone movement was observed in Plainfield sand than in Cisne silt loam or Drummer silty clay loam soils.
Todd L. Mervosh, Edward W. Stoller, F. William Simmons, Timothy R. Ellsworth, Gerald K. Sims   +4 more
openaire   +1 more source

The behavior of clomazone in the soil environment

Pest Management Science, 2009
AbstractBACKGROUND: Clomazone is a herbicide used to control broadleaf weeds and grasses. Clomazone use in agriculturally important crops and forests for weed control has increased and is a potential water contaminant given its high water solubility (1100 µg mL−1).
Amrith S, Gunasekara, Imma Donna P, dela Cruz, Matthew J, Curtis, Victor P, Claassen, Ronald S, Tjeerdema   +4 more
openaire   +2 more sources

Clomazone Dissipation in Two Montana Soils

Weed Technology, 1989
Clomazone is effective as a chemical fallow herbicide; however, its soil residual properties in the Northern Great Plains are unknown. Clomazone was applied to soil at 0.6, 1.1, and 2.2 kg ai/ha at two locations in Montana in the spring of 1986. Soil samples were taken at each location at monthly intervals for 6 months. Residual levels of the herbicide
Eric R. Gallandt, Peter K. Fay, William P. Inskeep   +2 more
openaire   +1 more source

Clomazone Dissipation in Two Tennessee Soils

Weed Science, 1996
Clomazone dissipation in soil was examined in field and laboratory experiments. Field studies suggested a potential for injury to rotational crops such as wheat. Field half-lives were 5 to 29 d (average of 9 field studies was 19 d) for the Etowah clay loam (fine-loamy, siliceous, thermic typic Paleudult) and Lily loam (fine-loamy, siliceous, thermic ...
K. Bruce Kirksey, Robert M. Hayes, William A. Krueger, Charles A. Mullins, Thomas C. Mueller   +4 more
openaire   +1 more source

Clomazone volatilization under varying environmental conditions

Chemosphere, 1996
Abstract Velvetleaf ( Abutilon theophrasti Medik.) was used as a bioindicator to examine factors (temperature, soil moisture, soil incorporation) which might influence clomazone {2-[(2-chlorophenyl)methyl] -4,4-dimethyl-3-isoxazolidinone} volatilization.
Martin A. Locke, Reid J. Smeda, Kevin D. Howard, Krishna N. Reddy   +3 more
openaire   +1 more source

Environmental Fate and Toxicology of Clomazone

2013
Clomazone, an isoxazolane herbicide, was first registered for use in 1986 for pest grasses and broad leaf weeds. Although the exact mode of action is still unclear, it is well documented that clomazone causes bleaching of foliar structures; the clomazone metabolite 5-ketoclomazone is regarded to cause the bleaching and to be the ultimate plant toxicant.
April R, Van Scoy, Ronald S, Tjeerdema
openaire   +2 more sources

Studies of clomazone mode of action

Pesticide Biochemistry and Physiology, 2006
Abstract Intact spinach chloroplasts were used to determine if clomazone, 5-OH clomazone, and/or 5-keto clomazone inhibited the chloroplastic isoprenoid pathway. When isopentenyl pyrophosphate was used as a precursor, neither clomazone nor the clomazone metabolites (5-OH clomazone and 5-keto clomazone) inhibited the formation of products separated by
Yurdagul Ferhatoglu, Michael Barrett
openaire   +1 more source