Results 31 to 40 of about 15,398,881 (324)

Deposition of CdTe quantum dots on microfluidic paper chips for rapid fluorescence detection of pesticide 2,4-D.

In Analysis, 2019
Rapid detection of pesticides in fruits is an ongoing challenge. The objective of the present study was to develop novel fluorescent microfluidic paper chips for specific recognition and sensitive detection of the pesticide 2,4-D through the electron ...
Zhong Zhang, Xin Ma, Mengfan Jia, Bowei Li, J. Rong, Xingbin Yang   +5 more
semanticscholar   +1 more source

Plant growth regulators on the pre-harvest period of 'Pêra' oranges Reguladores vegetais aplicados na fase pré-colheita de laranjeira "Pêra"

Ciência Rural, 2008
This research evaluated the effects of auxins and gibberellins applied at pre-harvest on the quality of orange juice. Orange trees, Citrus sinensis Osbeck, cv. 'Pêra' were sprayed in three applications, at 45-day intervals, with the following treatments:
Isolina Maria Leite de Almeida, Elizabeth Orika Ono, João Domingos Rodrigues   +2 more
doaj   +1 more source

Embryonic abnormalities and genotoxicity induced by 2,4-dichlorophenoxyacetic acid during indirect somatic embryogenesis in Coffea

Scientific Reports, 2023
Indirect somatic embryogenesis (ISE) is a morphogenetic pathway in which somatic cells form callus and, later, somatic embryos (SE). 2,4-dichlorophenoxyacetic acid (2,4-D) is a synthetic auxin that promotes the proliferation and dedifferentiation of ...
João Paulo de Morais Oliveira, Alex Junior da Silva, Mariana Neves Catrinck, Wellington Ronildo Clarindo   +3 more
doaj   +1 more source

Comparative Gene Expression following 2,4-D Treatment in Two Red Clover (Trifolium pratense L.) Populations with Differential Tolerance to the Herbicide

Agronomy
Incorporation of red clover (Trifolium pratense L.) into grass pastures can reduce the need for nitrogen fertilizer applications and increase the nutritional value of the forage.
Lucas Pinheiro de Araujo, Michael Barrett, Randy D. Dinkins   +2 more
doaj   +1 more source

Eficácia do halosulfuron no controle de tiririca (Cyperus rotundus) na cultura da cana-de-açúcar Efficacy of halosulphuron for the control of purple nutsedge in the sugar cane

Planta Daninha, 1995
A flora daninha infestante de um canavial é bastante específica e bem característica. O uso contínuo do mesmo herbicida é um dos fatores relacionados ao manejo, que mais tem contribuído para essa seleção.
Maria Helena T. Mascarenhas, Antônio João B. Galli, Maria Celuta M. Viana, Geraldo A. R. Macêdo, José Francisco R. Lara   +4 more
doaj   +1 more source

Parameter optimization and degradation mechanism for electrocatalytic degradation of 2,4-diclorophenoxyacetic acid (2,4-D) herbicide by lead dioxide electrodes

RSC Advances, 2019
2,4-Dichlorophenoxyacetic acid (2,4-D) is one of the most commonly used herbicides in the world. In this work, the electro-catalytic degradation of 2,4-D herbicide from aqueous solutions was evaluated using three anode electrodes, i.e., lead dioxide ...
A. Dargahi, A. Ansari, D. Nematollahi, G. Asgari, R. Shokoohi, M. Samarghandi   +5 more
semanticscholar   +1 more source

Efeito do armazenamento da calda na eficácia de herbicidas aplicados em: I. pós-emergência Effect of storage time of diluted herbicides mix on their effectiveness: I. pós-emergency herbicides

Planta Daninha, 1998
Diferentes tipos de pulverizadores são utilizados para a aplicação de herbicidas sendo que, em pequenas propriedades, é comum, por questões econômicas, a adaptação de barras ou pistolas manuais a tanques de grande capacidade.
Hamilton H. Ramos, Julio C. Durigan
doaj   +1 more source

Comparing Dislodgeable 2,4-D Residues across Athletic Field Turfgrass Species and Time. [PDF]

PLoS ONE, 2016
2,4-dimethylamine salt (2,4-D) is an herbicide commonly applied on athletic fields for broadleaf weed control that can dislodge from treated turfgrass. Dislodge potential is affected by numerous factors, including turfgrass canopy conditions. Building on
Matthew D Jeffries, Travis W Gannon, James T Brosnan, Gregory K Breeden   +3 more
doaj   +1 more source

Adsorption kinetic and thermodynamic studies of the 2, 4 – dichlorophenoxyacetate (2,4-D) by the [Co–Al–Cl] layered double hydroxide

Heliyon, 2019
[Co–Al–Cl] layered double hydroxide (LDH) obtained by co-precipitation at constant pH 8 presented a single phase in a hexagonal unit cell parameters similar to the hydrotalcite (JCPDS 14-191) belonging to the rhombohedral crystal system and space group R(
Josiane S. Calisto, I. S. Pacheco, L. Freitas, L. K. Santana, W. S. Fagundes, F. A. Amaral, S. C. Canobre   +6 more
semanticscholar   +1 more source

Removal of 2,4-dichlorophenoxyacetic Acid by Calcined Zn–Al–Zr Layered Double Hydroxide [PDF]

, 2011
The adsorption equilibrium, kinetics, and thermodynamics of removal of 2,4-dichlorophenoxy-acetic acid (2,4-D) from aqueous solutions by a calcined Zn–Al layered double hydroxide incorporated with Zr4+ were studied with respect to time, temperature, pH ...
Chaparadza, Allen, Hossenlopp, Jeanne
core   +1 more source