Results 11 to 20 of about 3,231 (199)

Competitive ability of soybean cultivars with horseweed (Conyza bonariensis) [PDF]

open access: yesPlanta Daninha, 2013
The existence of large areas infested with populations of Conyza spp. resistant to glyphosate in Brazil demands appropriate and integrated management strategies.
M.M. Trezzi   +5 more
doaj   +4 more sources

Growth stage influences level of resistance in glyphosate-resistant horseweed [PDF]

open access: yesCalifornia Agriculture, 2007
While glyphosate-resistant horseweed has not previously been reported in California, we suspected that it might exist, especially in noncrop areas.
Anil Shrestha, Kurt Hembree, Neil Va
doaj   +4 more sources

Responses of waterhemp and horseweed to cereal rye cover crop termination timing in soybean

open access: yesAgrosystems, Geosciences & Environment
Field experiments were conducted in soybeans (Glycine max L.) to determine the effects of a cereal rye (Secale cereale L.) cover crop (CC), two CC termination timings (TTs), and four herbicide programs (HP) on the emergence, biomass, and seed production ...
Ryan C. Hamberg   +3 more
doaj   +2 more sources

Development stages horseweed in soybeans competition [PDF]

open access: yesArquivos do Instituto Biológico, 2018
: The objective of this study was to evaluate the relative competitive ability of soybean with different development stages of hairy fleabane. Two experiments were conducted in greenhouse, in a completely randomized design.
Diecson Ruy Orsolin da Silva   +2 more
doaj   +3 more sources

Rapid Detection of Horseweed and Black Picker Sensitivity Levels to Saflufenacil [PDF]

open access: yesPlanta Daninha, 2019
: Resistance to herbicides is one of the main factors responsible for weed control failures. Once uncontrolled and stressed, resistant weeds demand a new application of herbicides from different modes of action, which results in higher monetary costs and
L. VARGAS   +6 more
doaj   +4 more sources

Herbicide mixtures for post-emergence control of horseweed in coffee interrow

open access: yesRevista Agrogeoambiental, 2022
Glyphosate-resistant biotypes of horseweed (Conyza spp.) have been a constant problematic for coffee growers all over Brazil. Therefore, this work was developed with the objective of evaluating efficacy of different herbicides, applied isolated or in ...
Breno Ribeiro Bornelli   +3 more
doaj   +2 more sources

Shikimate accumulation, glyphosate absorption and translocation in horseweed biotypes [PDF]

open access: yesPlanta Daninha, 2015
In Brazil, few research works on mechanisms of weed resistance to glyphosate have been conducted so far. Therefore, this research aimed to study analytical procedures determining the relation between the concentration of plant shikimate after glyphosate ...
V.C.B. CARDINALI   +6 more
doaj   +4 more sources

A Practical Guide for Harnessing Phylogenomics in Biocontrol: Accounting for Topological Uncertainty and Phylogenetic Distance in the Centrifugal Phylogenetic Method and Beyond. [PDF]

open access: yesEvol Appl
ABSTRACT In the genomic era, phylogenomics is playing an increasingly important role in biological control research for prioritising species in host specificity testing, species delimitation, and elucidating the origins of introduced species. This paper outlines key concepts in phylogenomics relevant to biocontrol practitioners and provides practical ...
Chen SH   +3 more
europepmc   +2 more sources

Unraveling the Role of P450 Reductase in Herbicide Metabolic Resistance Mechanism. [PDF]

open access: yesPlant Direct
ABSTRACT Plants require cytochrome P450 reductase (CPR) to supply two electrons for cytochrome P450 monooxygenase enzymes (P450) to react with an organic substrate. The transfer of electrons to the P450 active site in the P450 catalytic site relies on a robust and intricate CPR:P450 complex in the endoplasmic reticulum membrane.
Rigon CAG   +3 more
europepmc   +2 more sources

Soybean (Glycine max L.) canopy response to simulated dicamba vapor drift using unmanned aerial sensing. [PDF]

open access: yesPest Manag Sci
Sensitive soybean canopies subjected to 0.056 g a.e. ha−1 dicamba were identifiable 8 days after treatment using UAS correlating to visible and nonvisible portions of the electromagnetic spectrum. Abstract BACKGROUND Concerns about off‐target dicamba exposure to sensitive vegetation have escalated following the commercialization of dicamba‐tolerant (DT)
Kerr DR   +5 more
europepmc   +2 more sources

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