Results 31 to 40 of about 297 (118)

Metabolic profiling of glyphosate-resistant sourgrass (Digitaria insularis)

Weed Technology, 2020
AbstractPutative glyphosate-resistant sourgrass was collected to determine its resistance level and to evaluate its metabolic profile after resistance. Although accumulation of shikimic acid is known to occur in glyphosate-susceptible populations, differences in the ability of resistant (R) and susceptible (S) biotypes to accumulate quinic acid ...
Tiago Gazola, Leandro Bianchi, Márcio Furriela Dias, Caio A. Carbonari, Edivaldo D. Velini   +4 more
openaire   +3 more sources

Does Sourgrass leaf anatomy influence glyphosate resistance?

Comunicata Scientiae, 2015
Sourgrass(Digitaria insularis, L. Mez ex Ekman)is a weed that requires high rates of glyphosate ((N-[phosphonomethyl]-glycine) forcontrol, verylittle of the herbicide applied isabsorbed by theleaves. Morphological and histological differences in leaves of glyphosate-resistant and glyphosate-susceptible plantsshould explain the contrast of variance ...
Barroso, Arthur Arrobas Martins, Galeano, Esteban, Paiola Albrecht, Alfredo, Dos Reis, Fabrícia Cristina, Filho, Ricardo Victoria   +4 more
core   +7 more sources

Allelopathic Potential of Wheat on Sourgrass Resistant to Glyphosate

American Journal of Plant Sciences, 2015
We aimed with this study to assay the allelopathic potential of wheat genotypes in inhibiting germination and initial growth of sourgrass (Digitaria insularis) resistant to the herbicide glyphosate. Two experiments were installed under greenhouse conditions: the first one aimed to assay the potential of wheat genotypes in inhibiting emergence and ...
Germani Concenço
exaly   +3 more sources

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

Alternatives for the chemical control of sourgrass at post-emergence [PDF]

Pesquisa Agropecuária Brasileira
The objective of this work was to evaluate the effectiveness of herbicides when applied alone and in combinations at sourgrass (Digitaria insularis) post-emergence, as well as to identify a substitute to paraquat in sequential application.
Maikon Tiago Yamada Danilussi, Juliano Bortoluzzi Lorenzetti, Alfredo Junior Paiola Albrecht, Arthur Arrobas Martins Barroso, Leandro Paiola Albrecht, Guilherme Rossano dos Santos, André Felipe Moreira Silva, Giuzeppe Augusto Maran Caneppele   +7 more
doaj   +2 more sources

Clethodim and photosystem inhibitors on sourgrass control as a function of application time

Revista Ciência Agronômica
This study aimed to evaluate the effects of application time and addition of diuron to clethodim and diquat on the control of sourgrass. Two experiments were conducted with sourgrass plants, applying spray solutions comprising the herbicide clethodim ...
Guilherme Mendes Pio de Oliveira, Diego Genuário Gomes, Giliardi Dalazen   +2 more
doaj   +3 more sources

Anthracocystis panici-leucophaei: A Potential Biological Control Agent for the Grassy Weed Digitaria insularis

Agronomy
Anthracocystis panici-leucophaei, causal agent of smut on Digitaria insularis (sourgrass), was evaluated as a biological control agent for this weed. Two types of inocula (teliospore and sporidia) were tested to assess its infectivity.
Adriany Pena de Souza, Juliana Fonseca Alves, Eliane Mayumi Inokuti, Fernando Garcia, Bruno Wesley Ferreira, Thaisa Ferreira da Nobrega, Robert Weingart Barreto, Bruno Sérgio Vieira, Camila Costa Moreira   +8 more
doaj   +2 more sources

Chemical management of sourgrass with mixture of herbicides in areas under no-tillage system

Scientia Agraria Paranaensis, 2021
The sourgrass [Digitaria insularis (L.) Fedde] is a native species of the Americas found in tropical and subtropical regions, the difficulty in controlling Digitaria insularis with the herbicide Glyphosate generates the need to use other herbicides for an adequate management of the species.
Vinicius Matoso Calistro, Gustavo Loro, Izidro Dos Santos de Lima Junior, Elmo Pontes de Melo, Victor Luiz Peres de Souza   +4 more
openaire   +3 more sources

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

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 to control during the off-season. The objective of the this study was to evaluate the effectiveness
Walison Gasparelo da Silva, Lia Mara Moterle, Renato Frederico dos Santos   +2 more
openaire   +3 more sources

Interference periods of sourgrass (Digitaria insularis) on maize crop

Australian Journal of Crop Science
Sourgrass (Digitaria insularis (L.) Fedde) is frequently reported as one of the main weeds in grain production, along with several reports of herbicide resistance. The objectives of this study were (1) to understand the length of time that the maize crop, cv. P4285VYHR PIONEER could coexist with a weed community dominated by D. insularis plants without
Ana E. Piazentine, Heytor L. Martins, Juliana de S. Rodrigues, Willians C. Carrega, Pedro L.C.A. Alves   +4 more
openaire   +2 more sources