Results 1 to 10 of about 884 (177)

Enantioselectivity in the Phytotoxicity of Herbicide Imazethapyr

Journal of Agricultural and Food Chemistry, 2009
Chiral compounds usually behave enantioselectively in phyto-biochemical processes. With the increasing application of chiral herbicides, their enantioselective phytotoxicity to plants merits further study, and little information is available in this area.
Qingyan, Zhou, Chao, Xu, Yongsong, Zhang, Weiping, Liu   +3 more
openaire   +2 more sources

Enantioselective phytotoxicity of the herbicide imazethapyr in rice

Chemosphere, 2009
Research increasingly suggests that enantiomer selectivity may be a part of the toxicological effects of chiral contaminants. In this study, we selected Japonica rice variety Xiushui 63 seedlings to evaluate the enantioselectivity of imazethapyr (IM).
Haifeng, Qian, Haijia, Hu, Yuanyuan, Mao, Jian, Ma, Anping, Zhang, Weiping, Liu, Zhengwei, Fu   +6 more
openaire   +2 more sources

Degradation and Field Persistence of Imazethapyr

Weed Science, 1990
The volatilization, photolysis, microbial degradation, and field persistence of imazethapyr were studied using formulated and14C-labeled imazethapyr. Volatilization losses from soil were less than 2%. Photodecomposition losses of up to 8% occurred from soil and up to 52% from a glass slide with no soil. Significantly greater photodecomposition occurred
Andrew J. Goetz, Terry L. Lavy, Edward E. Gbur   +2 more
openaire   +1 more source

Imazethapyr bioactivity and movement in soil

Weed Science, 1998
A bioassay using red beet root length indicated an increase in imazethapyr bioactivity in Berryland sand (BLS) as soil pH increased from 3.7 to 6.5. Increasing pH above 6.5 had no effect on imazethapyr bioactivity. The lowest imazethapyr concentrations detected by the bioassay at pH 6.5 were 0.5, 1, 2.5, and 5 to 10 μg kg−1in acidwashed quartz sand ...
Scott W. Jourdan, Bradley A. Majek, Albert O. Ayeni   +2 more
openaire   +1 more source

Performance of Imazethapyr on Pulse Crops

Weed Technology, 1990
The potential of imazethapyr as a selective herbicide in four pulse crops was investigated at Melfort, Saskatchewan in 1988 and 1989. Lentil, field pea, faba bean and annual vetch were tolerant to imazethapyr applied preemergence to a silty clay loam soil at 0.05, 0.10, 0.15, and 0.20 kg ai ha-1.
Najib Malik, Lawrence Townley-Smith
openaire   +1 more source

Residues of Imazethapyr in Pigeon Pea and Soil

Pesticide Research Journal, 2023
Persistence of imazethapyr in pigeon pea and soil under South Gujarat conditions were studied. The LOQ value of imazethapyr worked out for soil, plant and dry pod was 0.01, 0.025, and 0.005 µg g-1. When applied at 75 and 150 g ai ha-1, imazethapyr followed the first order dissipation kinetics with the half-life (DT50) of 8.7 and 9.9 days for soil and 7.
Dhara D Lunagariya, Susheel Singh, Kamlesh G Patel, Vanrajsinh H Solanki, Lokesh Kumar Saini   +4 more
openaire   +1 more source

Biodegradation Characteristics of Imazaquin and Imazethapyr

Weed Science, 1989
The extent of14C-imazaquin and14C-imazethapyr abiotic vs. biotic degradation in soil was investigated. Degradation was measured in an in vitro system which allowed 90% recovery of applied herbicide. Triallate biodegradation is well documented and therefore used as a standard.
John R. Cantwell, Rex A. Liebl, Fred W. Slife   +2 more
openaire   +1 more source

Imazethapyr Efficacy with Adjuvants and Environments

Weed Technology, 1990
Adjuvant effectiveness with imazethapyr for kochia control was generally methylated seed oil ≥ nonionic surfactant ≥ petroleum oil in the greenhouse experiments, and methylated seed oil ≥ petroleum oil nonionic surfactant in the field. Oil adjuvants were applied at 2.3 L ha-1and nonionic surfactants were applied at 0.25% (v/v) of spray volume.
John D. Nalewaja, Jerzy Palczynski, Frank A. Manthey   +2 more
openaire   +1 more source

Microbial degradation of imazaquin and imazethapyr

Weed Science, 1997
Laboratory studies were conducted to investigate the processes of imazaquin and imazethapyr degradation in soil. Microbial degradation of14C-imazaquin and14C-imazethapyr was monitored by measuring14CO2evolution compared to nonsterile soil.14CO2evolution was greatest from carboxyl-labeled imazaquin and imazethapyr compared to ring-labeled imazaquin and ...
Jerry L. Flint, William W. Witt
openaire   +1 more source

Imazethapyr disrupts plant phosphorus homeostasis and acquisition strategies

Journal of Hazardous Materials, 2023
The deficiency of essential mineral nutrients caused by xenobiotics often results in plant mortality or an inability to complete its life cycle. Imazethapyr, a widely utilized imidazolinone herbicide, has a long-lasting presence in the soil-plant system and can induce toxicity in non-target plants.
Yihao, Li, Nan, Zhang, Jiarui, Xu, Lijuan, Liu, Xiaochuang, Cao, Xianyong, Lin, Chengliang, Sun   +6 more
openaire   +2 more sources