10 documents found, page 1 of 1

Resistência adquirida - Porque deixam de funcionar os herbicidas

Enhanced detoxification via Cyt-P450 governs cross-tolerance to ALS-inhibiting ...

Centaurea is a genus of winter weeds with a similar life cycle and competitive traits, which occurs in small-grains production fields in the central-southern of the Iberian Peninsula. However, most of herbicides recommended for weed management in wheat show poor control of Centaurea species. This study summarizes the biology, herbicide tolerance to acetolactate synthase (ALS) inhibitors, and recommended chemica...

Filago pyramidata tolerant to ALS-Inhibiting herbicides: A new invasive weed in...

Weeds that usually grow in non-agricultural areas have become increasingly common invading perennial crops. Species of the genus Filago, in addition to invading Spanish olive groves, have developed certain levels of natural tolerance to the acetolactate synthase (ALS) inhibiting herbicide flazasulfuron. The objective of this study was to determine the level and the mechanism involved in the tolerance to flazasu...

Different non-target site mechanisms endow different glyphosate susceptibility ...

In recent decades, cereal agriculture across main producing areas in Spain has progressively adopted direct sowing, associated with an increased use of herbicides in pre-sowing. Weedy species from genus Avena have been observed after the application of glyphosate in wheat. Here, Avena fatua (two accessions), Avena byzantina and Avena sterilis subsp. sterilis, one accession each, were taxonomically characterized...

Target-site and non-target-site resistance mechanisms confer multiple resistanc...

Carduus acanthoides L. is mainly a range-land weed, but in the 2010s has begun to invade GM crop production systems in C´ ordoba (Argentina), where glyphosate and 2,4-D have been commonly applied. In 2020, C. acanthoides was found with multiple resistance to these two herbicides. In this study, the mechanisms that confer multiple resistance to glyphosate and 2,4-D, were characterized in one resistant (R) popula...

Convergent adaptation of multiple herbicide resistance to auxin mimics and ALS-...

Herbicide-resistant weeds have been identified and recorded on every continent where croplands are available. Despite the diversity of weed communities, it is of interest how selection has led to the same consequences in distant regions. Brassica rapa is a widespread naturalized weed that is found throughout temperate North and South America, and it is a frequent weed among winter cereal crops in Argentina and ...

Multiple herbicide resistance evolution: The case of eleusine indica in Brazil

The occurrence of multiple herbicide resistant weeds has increased considerably in glyphosate-resistant soybean fields in Brazil; however, the mechanisms governing this resistance have not been studied. In its study, the target-site and nontarget-site mechanisms were characterized in an Eleusine indica population (R-15) with multiple resistance to the acetyl-CoA carboxylase (ACCase) inhibitors, glyphosate, imaz...

Effect of glyphosate and P on the growth and nutrition of Coffea arabica cultiv...

Made available in DSpace on 2021-06-25T11:14:47Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-12-01; Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES); The effect of the phosphorus (P) and glyphosate interactions on the growth and nutrition of Arabica coffee cultivars (Coffea arabica), as well as on the control of Ipomoea grandifolia and Urochloa decumbens, was evaluated. Catuaí-Amare...

The triple amino acid substitution TAP-IVS in the EPSPS gene confers high glyph...

The introduction of glyphosate-resistant (GR) crops revolutionized weed management; however, the improper use of this technology has selected for a wide range of weeds resistant to glyphosate, referred to as superweeds. We characterized the high glyphosate resistance level of an Amaranthus hybridus population (GRH)—a superweed collected in a GR-soybean field from Cordoba, Argentina—as well as the resistance mec...

Stacked traits conferring multiple resistance to imazamox and glufosinate in so...

Convencional crossing of soft cultivars resistant to imazamox and glufosinate resulted in two (Rados and Helter) lines resistant to both herbicides. Stacked traits dual herbicide in these lines, compared with a susceptible (s) cultivar, were characterized.