2007
DOI: 10.1590/s0100-83582007000100015
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Glyphosate sobre a resistência à ferrugem (Puccinia psidii) do eucalipto

Abstract: O glyphosate é o herbicida mais usado no controle de plantas daninhas em eucalipto, atuando diretamente na rota do ácido chiquímico, principal via de formação de compostos ligados aos mecanismos de defesa das plantas, como: lignina, ácido salicítico e fitoalexinas. Assim, o contato do glyphosate com as folhas do eucalipto pode levar a conseqüências importantes sobre a resistência a doenças. Objetivou-se neste estudo avaliar o envolvimento do glyphosate, via deriva, na severidade da ferrugem causada por Puccini… Show more

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Cited by 4 publications
(3 citation statements)
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“…Urediniospore germination also decreased on water agar medium treated with glyphosate. These results indicate that the effects of the herbicide on reducing the disease severity17 may occur at the initial phases of the pathogen life cycle.…”
Section: Discussionmentioning
confidence: 81%
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“…Urediniospore germination also decreased on water agar medium treated with glyphosate. These results indicate that the effects of the herbicide on reducing the disease severity17 may occur at the initial phases of the pathogen life cycle.…”
Section: Discussionmentioning
confidence: 81%
“…Determination of P. psidii resistance inheritance in Eucalyptus grandis HILL ex Maiden has made it possible to identify and select genotypes susceptible and resistant to the rust,15 an essential tool for controlling this disease 16. It was recently demonstrated that glyphosate drift does not affect rust resistance in eucalyptus clones,17 guaranteeing the use of resistant species, clones and progenies in the integrated management control of this disease, even in areas where this herbicide is used. Increasing glyphosate sublethal doses under simulated drift reduced the disease severity in clones susceptible to the rust 17.…”
Section: Introductionmentioning
confidence: 99%
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