Results 41 to 50 of about 297 (118)

Monitoring and baseline of glyphosate-resistant sourgrass in the main soybean growing regions of Brazil

open access: yesRevista de Ciências Agroveterinárias, 2022
Frequent application of glyphosate for consecutive years has enhanced the selection pressure on sourgrass (Digitaria insularis) populations, which resulted in the development of glyphosate-resistant biotypes.
Acácio Gonçalves Netto   +6 more
doaj   +1 more source

Herbicide resistance status of sourgrass

open access: yesAdvances in Weed Science, 2023
Abstract Sourgrass [ Digitaria insularis (L.) Mez ex Ekman] is one of the most challenging herbicide-resistant weeds in the grain-producing areas of Southeast, Central-west, and Northeast of Brazil. This species is a perennial grass that is highly competitive with the C4 photosynthetic pathway.
Gabriel S. Amaral   +6 more
openaire   +2 more sources

Can Soil Compaction Alter Morphophysiological Responses and Soybean Yield under Application of Selective Herbicides?

open access: yesApplied and Environmental Soil Science, Volume 2023, Issue 1, 2023., 2023
Compacted soils may be negatively affecting the selectivity of herbicides applied in preemergence in the soybean crop. Therefore, the present work aimed to investigate possible negative effects on the morphophysiological characters of soybean plants, as well as on the agronomic and yield performances of this crop.
Bruno César Silva Pereira   +10 more
wiley   +1 more source

ACCase inhibitor fractionation and glyphosate addition improve perennial sourgrass control

open access: yesSemina: Ciências Agrárias, 2022
Glyphosate-resistant sourgrass is difficult to control, particularly when perennial, and strategies that improve the control efficiency against this grass and preserve the useful life of graminicides are warranted.
Guilherme Mendes Pio de Oliveira   +2 more
doaj   +1 more source

INTERFERENCE OF INCREASING DENSITIES OF SOURGRASS IN GRAIN SORGHUM

open access: yesRevista Brasileira de Milho e Sorgo, 2021
Sourgrass has a high competitive potential, resulting in yield losses of several crops. With the growth of grain sorghum cultivation in the Cerrado , mainly in the second crop, studies are needed to assess the interference of sourgrass on this crop. The objective of this work was to evaluate the interference of increasing densities of sourgrass on ...
ALINE GUIMARÃES CRUVINEL   +5 more
openaire   +2 more sources

Foliar structural differences between glyphosate-resistant and glyphosate-susceptible biotypes of Digitaria insularis (L.) Fedde [PDF]

open access: yesRevista Ceres, 2023
Digitaria insularis (L.) Fedde stands out for its resistance to glyphosate and this characteristic may have a relationship with structural alterations. In such context, this research aimed at the characterization of the foliar anatomical structure of two
Silvio Douglas Ferreira   +3 more
doaj   +1 more source

Cytochrome P450 enzymes inhibitor in the control of Digitaria insularis [PDF]

open access: yesCiência e Agrotecnologia, 2021
Herbicide interactions can be synergic, additive, or antagonist when mixed in the spray tank. A good example is an association between 2,4-D and graminicides.
Gledson Soares de Carvalho   +5 more
doaj   +1 more source

SOURGRASS PHENOLOGICAL STAGE AND EFFICACY OF GLUFOSINATE-AMMONIUM

open access: yes, 2022
Recently, biotypes of sourgrass (Digitaria insularis) were identified in Brazil with multiple resistance to EPSPs-ACCase inhibiting herbicides, what demands the recommendation of herbicides with alternative mode of action, such as glufosinate-ammonium ...
Carvalho, Saul Jorge Pinto de
core   +1 more source

Sensitivity of Digitaria insularis to herbicides in agricultural areas, in the Brazilian Cerrado biome [PDF]

open access: yesPesquisa Agropecuária Brasileira, 2020
: The objective of this work was to evaluate the sensitivity of different populations of Digitaria insularis to the glyphosate, clethodim, and haloxyfop-P-methyl herbicides, in agricultural areas, and to develop infestation maps based on the responses of
Núbia Maria Correia   +3 more
doaj   +1 more source

Chemical and cultural management strategies for glyphosate-resistant sourgrass in central Brazil

open access: yes, 2023
The objective of this work was to evaluate different chemical treatments, associating herbicide combinations with the maintenance of forage species in the off-season, for the management of glyphosate-resistant sourgrass (Digitaria insularis) in a soybean
Núbia Maria Correia (5840126)
core   +1 more source

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