Results 31 to 40 of about 749 (142)

Metabolic profiling of glyphosate-resistant sourgrass (Digitaria insularis)

open access: yesWeed Technology, 2020
Putative 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
T. Gazola   +4 more
semanticscholar   +3 more sources

Growth and development of sourgrass based on days or thermal units [PDF]

open access: yesPlanta Daninha, 2014
This work was carried out with the objective of evaluating growth and development of sourgrass (Digitaris insularis) based on days or thermal units (growing degree days - GDD).
B.S. Marques   +5 more
doaj   +4 more sources

Physiological measurements of coffee young plants coexisting with sourgrass [PDF]

open access: yesCommunications in Plant Sciences, 2012
Coffee is an important crop planted in Brazil and commonly infested by sourgrass plants. Crescent densities of sourgrass growing with coffee young plants were maintained up to weed full flowering when physiological measurements were performed in the crop
Pedro Luis da Costa Aguiar Alves   +1 more
doaj   +3 more sources

Accumulation of dry mass and macronutrients by sourgrass plants [PDF]

open access: yesPlanta Daninha, 2013
The experiment was carried out aiming to analyze the dry mass production and distribution and the content and accumulation of macronutrients in sourgrass (Digitaria insularis) plants cultivated under mineral nutrition standard conditions.
L.B. Carvalho, M.S. Bianco, S. Bianco
doaj   +6 more sources

Interference periods of sourgrass (Digitaria insularis) on maize crop

open access: yesAustralian 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,
A. E. Piazentine   +4 more
semanticscholar   +2 more sources

Monitoring of Resistance of Sourgrass to Glyphosate Herbicide in Urban Areas of the State of São Paulo, Brazil [PDF]

open access: yesPlanta Daninha, 2019
: The objective of this work was to monitor the resistance of sourgrass (Digitaria insularis) to glyphosate in urban areas of the State of São Paulo to understand the spread of resistant biotypes.
T. GAZOLA   +3 more
doaj   +2 more sources

Chemical Control and Morphoanatomical Analysis of Leaves of Different Populations of Sourgrass [PDF]

open access: yesPlanta Daninha, 2017
Digitaria insularis has been selected by frequent glyphosate applications both in no-till areas and in fruit orchards. The objective of this paper was to evaluate control efficacy of D. insularis populations by glyphosate, alone and mixed with quizalofop-
L.J.P. GOMES   +3 more
doaj   +8 more sources

Sourgrass densities affecting the initial growth and macronutrient content of coffee plants Densidades de capim-amargoso afetando o crescimento inicial e o teor de macronutrientes do cafeeiro [PDF]

open access: yesPlanta Daninha, 2013
The objective of this work was to evaluate the coexistence effects of coffee (Coffea arabica) with densities of sourgrass (Digitaria insularis) on crop macronutrient content and plant growth.
L.B Carvalho, P.L.C.A Alves, S Bianco
doaj   +5 more sources

Glyphosate efficacy on sourgrass biotypes with suspected resistance collected in GR-crop fields. [PDF]

open access: yesActa Scientiarum. Agronomy, 2018
In Brazil, infestations of crop areas with glyphosate-resistant (GR) sourgrass ( Digitaria insularis (L.) Fedde) biotypes has risen significantly, increasing crop production costs.
H. M. Silveira   +4 more
semanticscholar   +5 more sources

Effects of glyphosate and clethodim alone and in mixture in sourgrass (Digitaria insularis)

open access: yesCrop Protection, 2020
Glyphosate is used frequently in agriculture, and sourgrass (Digitaria insularis (L.) Mez ex Ekman) has become one of the most problematic weeds in Brazil because of its resistance to this herbicide.
Leandro Bianchi   +7 more
semanticscholar   +4 more sources

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