نتایج جستجو برای: herbicides

تعداد نتایج: 8885  

2011
Tejaswini P. Reddy Maria Manczak Marcus J. Calkins Peizhong Mao Arubala P. Reddy Ulziibat Shirendeb Byung Park P. Hemachandra Reddy

The purpose of this study was to determine the neurotoxicity of two commonly used herbicides: picloram and triclopyr and the neuroprotective effects of the mitochondria-targeted antioxidant, SS31. Using mouse neuroblastoma (N2a) cells and primary neurons from C57BL/6 mice, we investigated the toxicity of these herbicides, and protective effects of SS1 peptide against picloram and triclopyr toxi...

2014
Franck E. Dayan

Herbicides with new modes of action (MOAs) are badly needed due to the rapidly evolving resistance to commercial herbicides, but a new MOA has not been introduced in over 20 years. The greatest pest management challenge for organic agriculture is the lack of effective natural product herbicides. The structural diversity and evolved biological activity of natural phytotoxins offer opportunities ...

Journal: :پژوهش های حبوبات ایران 0

a field experiment was conducted in khorramabad to evaluate the efficacy of 12 herbicides [ethalfloralin (3 l.ha-1), trifloralin (2 l.ha-1), pendimethalin (1.5-2.5 l.ha-1), imazethapyr (0.5-0.7 l.ha-1), isoxaflotole (80 g.ha-1), pyridate (2.5 l.ha-1), bentazon (2 l.ha-1), metribuzine (0.7 kg.ha -1), fomesafen (1 l.ha-1), simazine (80 g.ha-1), prometrine (830 g.ha-1), haloxyfop-r-methyl (1 l.ha-...

Journal: :Journal of agricultural and food chemistry 2012
Jinhong Lü Jianfa Li Yimin Li Baozhu Chen Zhangfeng Bao

The sustained release and reduced leaching of herbicides is expected for enhancing their efficacy and minimizing their pollution. For this purpose, the rice straw biochar made at a relatively low temperature (350 °C) (RS350) was used simultaneously as the carrier for incorporating herbicides besides as the soil amendment. In this way, the sustained release of herbicides acetochlor and 2,4-D was...

2015
Adam D. Wilkinson Catherine J. Collier Florita Flores Andrew P. Negri

Photosystem II herbicides are transported to inshore marine waters, including those of the Great Barrier Reef, and are usually detected in complex mixtures. These herbicides inhibit photosynthesis, which can deplete energy reserves and reduce growth in seagrass, but the toxicity of some of these herbicides to seagrass is unknown and combined effects of multiple herbicides on seagrass has not be...

2016
Philip Mercurio Jochen F. Mueller Geoff Eaglesham Jake O'Brien Florita Flores Andrew P. Negri

Widespread contamination of nearshore marine systems, including the Great Barrier Reef (GBR) lagoon, with agricultural herbicides has long been recognised. The fate of these contaminants in the marine environment is poorly understood but the detection of photosystem II (PSII) herbicides in the GBR year-round suggests very slow degradation rates. Here, we evaluated the persistence of a range of ...

2000
Guang-Guo Ying Brian Williams

The persistence of herbicides applied in vineyards has become a concern in recent years due to their wide use. Investigations into the fate of herbicides in a vineyard in the Barossa Valley, South Australia, have been directed towards the dissipation of herbicides in soil and on grapes. Concentrations of the herbicides, norflurazon, oxadiazon, and oxyfluorfen in soil were monitored following th...

2017
Maolong Hu Huiming Pu Jianqin Gao Weihua Long Feng Chen Wei Zhang Xiaoyin Zhou Qi Peng Song Chen Jiefu Zhang

Acetohydroxyacid synthase (AHAS), also called acetolactate synthase, is a key enzyme involved in the first step of the biosynthesis of the branched-chain amino acids valine, isoleucine and leucine. Acetohydroxyacid synthase-inhibiting herbicides (AHAS herbicides) are five chemical families of herbicides that inhibit AHAS enzymes, including imidazolinones (IMI), sulfonylureas (SU), pyrimidinylth...

1998
JAMES F. FAIRCHILD D. SHANE RUESSLER

This study determined the relative sensitivity of five species of aquatic macrophytes and six species of algae to four commonly used herbicides (atrazine, metribuzin, alachlor, and metolachlor). Toxicity tests consisted of 96-h (duckweed and algae) or 14-d (submerged macrophytes) static exposures. The triazine herbicides (atrazine and metribuzin) were significantly more toxic to aquatic plants ...

Journal: :Journal of environmental quality 2001
N C Hansen J F Moncrief S C Gupta P D Capel A E Olness

Herbicides transported to surface waters by agricultural runoff are partitioned between solution and solid phases. Conservation tillage that reduces upland erosion will also reduce transport of herbicides associated with the solid phase. However, transport of many herbicides occurs predominantly in solution. Conservation tillage practices may or may not reduce transport of solution-phase herbic...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید