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Registro Completo |
Biblioteca(s): |
Embrapa Uva e Vinho. |
Data corrente: |
15/12/2008 |
Data da última atualização: |
11/06/2019 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
VELINI, E.; ALVES, E.; GODOY, M. C.; MESCHEDE, D. K.; SOUZA, R. T. de; DUKE, S. O. |
Afiliação: |
EDIVALDO VELINI, USP/Esalq; ELZA ALVES, USP/Esalq; MARIA C. GODOY, USP/Esalq; DANA K. MESCHADE, USP/Esalq; REGINALDO TEODORO DE SOUZA, CNPUV; STEPHEN O. DUKE, US Department of Agriculture. |
Título: |
Glyphosate applied at low doses can stimulate plant growth. |
Ano de publicação: |
2008 |
Fonte/Imprenta: |
Pest Management Science, Sussex, v. 64, n. 4, p. 489-496, 2008. |
Idioma: |
Inglês |
Conteúdo: |
BACKGROUND:Glyphosate blocks the shikimic acid pathway, inhibiting the production of aromatic amino acids and several secondary compounds derived from these amino acids. Non-target plants can be exposed to low doses of glyphosate by herbicide drift of spray droplets and contact with treated weeds. Previous studies have reported that low doses of glyphosate stimulate growth, although these data are very limited. The objective of this study was to determine the effects of low glyphosate doses on growth of a range of plant species. RESULTS:Growth of maize, conventional soybean, Eucalyptus grandis Hill ex Maiden, Pinus caribea L. and Commelia benghalensis L. was enhanced by 1.8-36 g glyphosate ha-1. Growth of glyphosate-resistant soybean was unaffected by any glyphosate dose from 1.8 to 720 g AE ha-1. The optimum doses for growth stimulation were distinct for plant species and tissue evaluated. The greatest stimulation of growth was observed for C. benghalensis and P. caribea. Shikimic acid levels in tissues of glyphosate-treated soybean and maize were measured and found to be elevated at growth-stimulating doses. CONCLUSION:Subtoxic doses of glyphosate stimulate the growth of a range of plant species, as measured in several plant organs. This hormesis effect is likely to be related to the molecular target of glyphosate, since the effect was not seen in glyphosate-resistant plants, and shikimate levels were enhanced in plants with stimulated growth. Copyright © 2008 Society of Chemical Industry MenosBACKGROUND:Glyphosate blocks the shikimic acid pathway, inhibiting the production of aromatic amino acids and several secondary compounds derived from these amino acids. Non-target plants can be exposed to low doses of glyphosate by herbicide drift of spray droplets and contact with treated weeds. Previous studies have reported that low doses of glyphosate stimulate growth, although these data are very limited. The objective of this study was to determine the effects of low glyphosate doses on growth of a range of plant species. RESULTS:Growth of maize, conventional soybean, Eucalyptus grandis Hill ex Maiden, Pinus caribea L. and Commelia benghalensis L. was enhanced by 1.8-36 g glyphosate ha-1. Growth of glyphosate-resistant soybean was unaffected by any glyphosate dose from 1.8 to 720 g AE ha-1. The optimum doses for growth stimulation were distinct for plant species and tissue evaluated. The greatest stimulation of growth was observed for C. benghalensis and P. caribea. Shikimic acid levels in tissues of glyphosate-treated soybean and maize were measured and found to be elevated at growth-stimulating doses. CONCLUSION:Subtoxic doses of glyphosate stimulate the growth of a range of plant species, as measured in several plant organs. This hormesis effect is likely to be related to the molecular target of glyphosate, since the effect was not seen in glyphosate-resistant plants, and shikimate levels were enhanced in plants with stimulated growth. Copyright © 2008 Society of C... Mostrar Tudo |
Palavras-Chave: |
Crescimento vegetativo; Glifosato. |
Thesagro: |
Agricultura; Agrotóxico; Eucalipto; Herbicida; Milho; Soja. |
Thesaurus Nal: |
Pinus. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/195637/1/Velini-et-al-2008-Pest-Management-Science.pdf
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Marc: |
LEADER 02267naa a2200289 a 4500 001 1543207 005 2019-06-11 008 2008 bl uuuu u00u1 u #d 100 1 $aVELINI, E. 245 $aGlyphosate applied at low doses can stimulate plant growth.$h[electronic resource] 260 $c2008 520 $aBACKGROUND:Glyphosate blocks the shikimic acid pathway, inhibiting the production of aromatic amino acids and several secondary compounds derived from these amino acids. Non-target plants can be exposed to low doses of glyphosate by herbicide drift of spray droplets and contact with treated weeds. Previous studies have reported that low doses of glyphosate stimulate growth, although these data are very limited. The objective of this study was to determine the effects of low glyphosate doses on growth of a range of plant species. RESULTS:Growth of maize, conventional soybean, Eucalyptus grandis Hill ex Maiden, Pinus caribea L. and Commelia benghalensis L. was enhanced by 1.8-36 g glyphosate ha-1. Growth of glyphosate-resistant soybean was unaffected by any glyphosate dose from 1.8 to 720 g AE ha-1. The optimum doses for growth stimulation were distinct for plant species and tissue evaluated. The greatest stimulation of growth was observed for C. benghalensis and P. caribea. Shikimic acid levels in tissues of glyphosate-treated soybean and maize were measured and found to be elevated at growth-stimulating doses. CONCLUSION:Subtoxic doses of glyphosate stimulate the growth of a range of plant species, as measured in several plant organs. This hormesis effect is likely to be related to the molecular target of glyphosate, since the effect was not seen in glyphosate-resistant plants, and shikimate levels were enhanced in plants with stimulated growth. Copyright © 2008 Society of Chemical Industry 650 $aPinus 650 $aAgricultura 650 $aAgrotóxico 650 $aEucalipto 650 $aHerbicida 650 $aMilho 650 $aSoja 653 $aCrescimento vegetativo 653 $aGlifosato 700 1 $aALVES, E. 700 1 $aGODOY, M. C. 700 1 $aMESCHEDE, D. K. 700 1 $aSOUZA, R. T. de 700 1 $aDUKE, S. O. 773 $tPest Management Science, Sussex$gv. 64, n. 4, p. 489-496, 2008.
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Embrapa Uva e Vinho (CNPUV) |
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Biblioteca(s): |
Embrapa Uva e Vinho. |
Data corrente: |
12/11/2012 |
Data da última atualização: |
22/07/2019 |
Tipo da produção científica: |
Resumo em Anais de Congresso |
Autoria: |
SANTOS, D. B.; PAULA, L. A. de; RUFATO, A. de R. |
Afiliação: |
DOUGLAS BUENO SANTOS, UERGS; LUCIANA ARANTES DE PAULA, CNPQ; ANDREA DE ROSSI RUFATO, CNPUV. |
Título: |
Fenologia e produção de cultivares de amoreira-preta na safra 2011/12 em Vacaria, RS. |
Ano de publicação: |
2012 |
Fonte/Imprenta: |
In: ENCONTRO DE INICIAÇÃO CIENTÍFICA, 10.; ENCONTRO DE PÓS-GRADUANDOS DA EMBRAPA UVA E VINHO, 6., 2012, Bento Gonçalves. Resumos... Bento Gonçalves: Embrapa Uva e Vinho, 2012. |
Páginas: |
p. 28. |
Idioma: |
Português |
Notas: |
Resumo. |
Palavras-Chave: |
Anais; Brazos; Caigangue; CNPUV; Guarani; IC; Iniciação cientifica; Loch Ness; Rio Grande do Sul; Tupy; Vacaria; Xavante. |
Thesagro: |
Amora preta; Fenologia; Fruticultura; Produção; Variedade. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/69916/1/SANTOS-EICp28-2012.pdf
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Marc: |
LEADER 01005nam a2200349 a 4500 001 1939435 005 2019-07-22 008 2012 bl uuuu u00u1 u #d 100 1 $aSANTOS, D. B. 245 $aFenologia e produção de cultivares de amoreira-preta na safra 2011/12 em Vacaria, RS. 260 $aIn: ENCONTRO DE INICIAÇÃO CIENTÍFICA, 10.; ENCONTRO DE PÓS-GRADUANDOS DA EMBRAPA UVA E VINHO, 6., 2012, Bento Gonçalves. Resumos... Bento Gonçalves: Embrapa Uva e Vinho$c2012 300 $ap. 28. 500 $aResumo. 650 $aAmora preta 650 $aFenologia 650 $aFruticultura 650 $aProdução 650 $aVariedade 653 $aAnais 653 $aBrazos 653 $aCaigangue 653 $aCNPUV 653 $aGuarani 653 $aIC 653 $aIniciação cientifica 653 $aLoch Ness 653 $aRio Grande do Sul 653 $aTupy 653 $aVacaria 653 $aXavante 700 1 $aPAULA, L. A. de 700 1 $aRUFATO, A. de R.
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