Crabgrass
Mostrando 1-7 de 7 artigos, teses e dissertações.
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1. Lixiviação e eficácia de controle de plantas daninhas da formulação de diurom + hexazinona + sulfometurom-metílico em diferentes solos, condições hídricas e presença de palha / Leaching and efficacy for weed control by the formulation of diuron + hexazinone + sulfometuron-methyl in different soils, hydric conditions and presence of straw
A expansão das áreas cultivadas com cana-de-açúcar no Brasil é evidente, e para um eficaz manejo dessas extensas áreas, é necessário um bom planejamento das operações agrícolas. Nesse sentido, a aplicação de herbicidas pode ocorrer até no período seco do ano e em condições de solo bem distintas. Sabe-se que os diferentes ambientes nos quais
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 12/09/2012
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2. Resistência de populações da planta daninha Digitaria ciliaris (Retz.) Koel. a herbicidas inibidores da acetil coenzima A carboxilase (ACCase) / Resistance of populations of the weed Digitaria ciliaris (Retz.) Koel. to acetyl coenzyme A carboxylase (ACCase) inhibitor herbicides
Com o objetivo de estudar populações resistentes (R) e suscetíveis (S) de Digitaria ciliaris aos herbicidas inibidores da ACCase, no estado do Paraná-Brasil, região dos Campos Gerais foi desenvolvida a presente pesquisa para: (a) confirmar a resistência de biótipos R aos herbicidas inibidores da ACCase por meio de curvas de dose-resposta, bem como est
Publicado em: 2006
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3. Aplicação de vinhaça e do extrato de palhiço de cana-de-açúcar no controle de plantas daninhas / Use of vinasse and sugarcane straw extract on weed control
Sugarcane (Saccharum officinarum L.) has major presence in the history of Brazil and possess great expression in the current national economy. The objective of this work was to determine the occurrence effects of vinasse and raw extract of sugarcane in the control of weeds. The experiments were carried out in greenhouse. Treatments used were vinasse at 0, 10
Publicado em: 2005
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4. "Tolerância de espécies de capim-colchão (Digitaria spp) a herbicidas na cultura de cana-de-açucar" / Tolerance of the crabgrass species (Digitaria spp) to herbicides in the sugarcane crop
It is known that the repetitive and successive use of the same or differents herbicides, but with same mechanism of action, impose a selection pressure on the weed population controled. The two main forms of weed population response resulted from the selection pressure of the herbicide is, weed species shifts, through selection of the tolerant species of wee
Publicado em: 2004
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5. Sulfur Assimilation in C4 Plants: Intercellular Compartmentation of Adenosine 5′-Triphosphate Sulfurylase in Crabgrass Leaves 1
The activity of adenosine 5′ triphosphate sulfurylase was determined in crabgrass mesophyll cells, bundle sheath strands, and whole leaf extracts. The enzyme was assayed by following molybdate-dependent pyrophosphate release from ATP, 35SO42− incorporation into adenosine 5′ phosphosulfate, and ATP synthesis dependent upon adenosine 5′ phosphosulfate
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6. Nitrogen Assimilation Pathways in Leaf Mesophyll and Bundle Sheath Cells of C4 Photosynthesis Plants Formulated from Comparative Studies with Digitaria sanguinalis (L.) Scop. 1
Nitrogen assimilation in crabgrass Digitaria sanguinalis (L.) Scop., was studied by comparing leaf extracts with isolated mesophyll cell and bundle sheath strand extracts. The results show that both nitrate and nitrate reductase are localized in mesophyll cells; glutamine synthetase is nearly equally distributed in the mesophyll and bundle sheath; approximat
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7. Purification and Species Distribution of Rubisco Activase
Ribulose-1,5-bisphosphate carboxylase/oxygenase (rubisco) activase, a soluble chloroplast protein which promotes light-dependent rubisco activation, was partially purified from spinach chloroplasts by ion-exchange and gel-filtration fast protein liquid chromatography. The protein could also be isolated using rate zonal centrifugation in sucrose gradients fol