Results 31 to 40 of about 622 (134)

Differential response of two sourgrass populations to glyphosate [PDF]

Communications in Plant Sciences, 2013
The repetitive use of glyphosate may cause increase on the resistance of sourgrass (Digitaria insularis) through mechanisms of natural selection. The aim of this study was to verify the response of two populations of sourgrass (one collected from ...
São Paulo State University, Jaboticabal, SP, Brazil, Bruna Pires da Silva, Paulo Roberto Fidelis Giancotti, Leonardo Bianco de Carvalho, Pedro Luis da Costa Aguiar Alves   +4 more
doaj   +3 more sources

Periods of sourgrass interference in the soybean

Revista Ciência Agronômica
Sourgrass (Digitaria insularis) is one of the principal weeds in Brazil, and there are reports of its being glyphosate-resistant. The aim of this study was to determine the coexistence period of the TMG7063 IPRO soybean cultivar with a weed community ...
Ana Eliza Piazentine, Willians César Carrega, Allan Lopes Bacha, Pedro Luís da Costa Aguiar Alves   +3 more
doaj   +3 more sources

POST-MOWING AND SEQUENTIAL HERBICIDE APPLICATION IN THE MANAGEMENT OF SOURGRASS (Digitaria insularis) [PDF]

Chilean journal of agricultural & animal sciences
The excessive use of glyphosate in crop production has led to the emergence of sourgrass (Digitaria insularis) populations resistant to this herbicide. The species has a high capacity for emergence and development throughout the year, making it difficult
da Silva, Walison Gasparelo, dos Santos, Renato Frederico, Moterle, Lia Mara   +2 more
core   +3 more sources

Spraying solo or mixed glyphosate after different ready-mixed solution storage periods [PDF]

Revista Agrogeoambiental
The continuous need to use tank mixtures of herbicides for managing hard-to-control weeds, particularly volunteer soybean in second-crop corn, motivated this study.
Saul Jorge Pinto de Carvalho, Débora Fernanda Oliveira Batista, Jonathan Miguel Matoso, Ludimila Justina Ferreira da Silva, Michele de Souza   +4 more
doaj   +3 more sources

Herbicide resistance status of sourgrass

Advances 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, Hellen M. Silveira, Kassio F. Mendes, Antônio J.M Silva, Maria F. G. F. Silva, Caio A. Carbonari, Ricardo Alcántara-de la Cruz   +6 more
openaire   +2 more sources

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

Revista 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, Jaqueline de Araújo Barbosa, Shirley Martins Silva, Neumarcio Vilanova da Costa   +3 more
doaj   +1 more source

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

Applied 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, Camila Jorge Bernabé Ferreira, Guilherme Braga Pereira Braz, Matheus de Freitas Souza, Rose Luiza Moraes Tavares, Márcio Rosa, Eduardo Lima do Carmo, Gabriel Henrique Vian, Ana Paula Sousa Silva, Fellipe Goulart Machado, Bon-Jun Koo   +10 more
wiley   +1 more source

ACCase inhibitor fractionation and glyphosate addition improve perennial sourgrass control

Semina: 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, Marcelo Augusto de Aguiar e Silva, Giliardi Dalazen   +2 more
doaj   +1 more source

INTERFERENCE OF INCREASING DENSITIES OF SOURGRASS IN GRAIN SORGHUM

Revista 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, GUILHERME BRAGA PEREIRA BRAZ, GUSTAVO ANDRÉ SIMON, ALESSANDRO GUERRA DA SILVA, LEANDRO CARMO LEÃO RIBEIRO, TÚLIO PORTO GONÇALO   +5 more
openaire   +2 more sources

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

Ciência 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, Jessica Ferreira Lourenço Leal, Amanda dos Santos Souza, Francisco Freire de Oliveira Junior, Ana Claudia Langaro, Camila Ferreira de Pinho   +5 more
doaj   +1 more source