Dinâmica de plantas daninhas sob o uso frequente de glyphosate em cultivos de eucalipto
Ano de defesa: | 2013 |
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Autor(a) principal: | |
Orientador(a): | |
Banca de defesa: | , |
Tipo de documento: | Dissertação |
Tipo de acesso: | Acesso aberto |
Idioma: | por |
Instituição de defesa: |
Universidade Federal de Viçosa
|
Programa de Pós-Graduação: |
Mestrado em Fitotecnia
|
Departamento: |
Plantas daninhas, Alelopatia, Herbicidas e Resíduos; Fisiologia de culturas; Manejo pós-colheita de
|
País: |
BR
|
Palavras-chave em Português: | |
Palavras-chave em Inglês: | |
Área do conhecimento CNPq: | |
Link de acesso: | http://locus.ufv.br/handle/123456789/4616 |
Resumo: | Weed management in homogeneous forests of eucalyptus involves among other factors the knowledge of the flora in the understory and its interaction with the disturbances in the middle, as well as the possible impacts of chemical control of these over the culture. Given the importance of the study of ecology of weeds and the impact of chemical management about the eucalyptus, three essays in order to assess: the behavior of the weed flora in eucalyptus plantations cultivated in three reliefs before and after the forest fire; behavior of weed community in three reliefs cultivated with eucalyptus subjected to repetitive use of glyphosate; and the effects of simulated glyphosate drift on eucalyptus plants depending on the age of the population. Eight evaluations were carried out phytosociologic over the cycle of development of eucalyptus in the areas of study in 30 permanent plots distributed in three reliefs: lowland, slope and top of hill, however, in the experiment where the understory vegetation was burned was held six assessments pre-fire and two post. In the simulated drift test was observed survival percentage increment in diameter at breast height (DBH), total height of the plant and in wood volume. The forest fire has altered dramatically the floristic composition favoring species more adapted to disturbed areas as the families Poaceae, Rubiaceae. Relief influenced in the presence of determined species such as Commelina benghalensis, Digitaria insulares, Richardia brasiliensis and Spermacoce latifolia, tolerant to glyphosate and due to the clear preference of the last two, for old soils as slope and top of hill. On the other hand, reducing the increments in DBH, height, and volume of wood, was proportional to the increase in leaf area in contact with glyphosate in smaller plants, which influenced on survival rate and plant stand with 90 days. In the population with 180 days, though showing reduction in increments, not death of the eucalyptus was observed. In plantations with 360 days, the eucalyptus was indifferent to the increase in area exposed to drift. The dynamics of weeds is influenced by environmental disturbances, whether by forest fire or repetitive use of the same herbicide, favoring species tolerant and in high densities in relief role. The drift may result in drastic reductions in growth and wood accumulation in young plantations, while most crops developed, with 360 days of planting, do not exhibit changes in their productivity. |
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Santos Júnior, Antônio doshttp://lattes.cnpq.br/8292851297406892Santos, Leonardo David Tuffihttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4702818P4Ferreira, Francisco Affonsohttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4783387U7Oliveira Neto, Silvio Nolasco dehttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4723934E9Sediyama, Carlos Sigueyukihttp://lattes.cnpq.br/36472410879182392015-03-26T13:40:00Z2014-02-102015-03-26T13:40:00Z2013-07-19SANTOS JÚNIOR, Antônio dos. Dynamics of weeds under the frequent use of glyphosate in eucalyptus plantations. 2013. 71 f. Dissertação (Mestrado em Plantas daninhas, Alelopatia, Herbicidas e Resíduos; Fisiologia de culturas; Manejo pós-colheita de) - Universidade Federal de Viçosa, Viçosa, 2013.http://locus.ufv.br/handle/123456789/4616Weed management in homogeneous forests of eucalyptus involves among other factors the knowledge of the flora in the understory and its interaction with the disturbances in the middle, as well as the possible impacts of chemical control of these over the culture. Given the importance of the study of ecology of weeds and the impact of chemical management about the eucalyptus, three essays in order to assess: the behavior of the weed flora in eucalyptus plantations cultivated in three reliefs before and after the forest fire; behavior of weed community in three reliefs cultivated with eucalyptus subjected to repetitive use of glyphosate; and the effects of simulated glyphosate drift on eucalyptus plants depending on the age of the population. Eight evaluations were carried out phytosociologic over the cycle of development of eucalyptus in the areas of study in 30 permanent plots distributed in three reliefs: lowland, slope and top of hill, however, in the experiment where the understory vegetation was burned was held six assessments pre-fire and two post. In the simulated drift test was observed survival percentage increment in diameter at breast height (DBH), total height of the plant and in wood volume. The forest fire has altered dramatically the floristic composition favoring species more adapted to disturbed areas as the families Poaceae, Rubiaceae. Relief influenced in the presence of determined species such as Commelina benghalensis, Digitaria insulares, Richardia brasiliensis and Spermacoce latifolia, tolerant to glyphosate and due to the clear preference of the last two, for old soils as slope and top of hill. On the other hand, reducing the increments in DBH, height, and volume of wood, was proportional to the increase in leaf area in contact with glyphosate in smaller plants, which influenced on survival rate and plant stand with 90 days. In the population with 180 days, though showing reduction in increments, not death of the eucalyptus was observed. In plantations with 360 days, the eucalyptus was indifferent to the increase in area exposed to drift. The dynamics of weeds is influenced by environmental disturbances, whether by forest fire or repetitive use of the same herbicide, favoring species tolerant and in high densities in relief role. The drift may result in drastic reductions in growth and wood accumulation in young plantations, while most crops developed, with 360 days of planting, do not exhibit changes in their productivity.O manejo de plantas daninhas em florestas homogêneas de eucalipto envolve dentre outros fatores o conhecimento da flora em sub-bosque e a sua interação com os distúrbios no meio, bem como os possíveis impactos do controle químico destas sobre a cultura. Diante da importância do estudo da ecologia de plantas daninhas e o impacto do manejo químico sobre o eucalipto, foram conduzidos três ensaios com o intuito de avaliar: o comportamento da flora infestante em plantios de eucalipto cultivados em três relevos antes e depois do incêndio florestal; comportamento da comunidade de plantas daninhas em três relevos cultivados com eucalipto submetidos ao uso repetitivo de glyphosate; e os efeitos da deriva simulada de glyphosate em plantas de eucalipto em função da idade do povoamento. Foram realizadas oito avaliações fitossociologicas ao longo do ciclo de desenvolvimento do eucalipto nas áreas de estudo, em 30 parcelas permanentes distribuídas em três relevos: baixada, encosta e topo de morro, contudo, no experimento onde a vegetação do sub-bosque foi queimada realizou-se seis avaliaçãoes pré-incêndio e duas pós. No ensaio de deriva simulada foi observada a porcentagem de sobrevivência, incremento em diâmetro a altura do peito (DAP), em altura da total da planta e em volume de madeira. O incêndio florestal alterou drasticamente a composição florística favorecendo espécies mais adaptadas a áreas perturbadas como as das famílias Poaceae e Rubiaceae. O relevo influenciou na presença de determinadas espécies como Commelina benghalensis, Digitaria insulares, Richardia brasiliensis e Spermacoce latifolia, tolerantes ao glyphosate e devido à nítida preferência das duas ultimas, por solos mais intemperizados como encosta e topo de morro. Por outro lado, a redução dos incrementos em DAP, altura, e volume de madeira, foi proporcional ao aumento da área foliar em contato com o glyphosate em plantas de menor porte, o que influenciou na taxa de sobrevivência e estande de plantas com 90 dias. Já no povoamento com 180 dias, embora tenha apresentado redução nos incrementos, não foi observada morte do eucalipto. Em plantios com 360 dias, o eucalipto foi indiferente ao aumento da área exposta à deriva. A dinâmica de plantas daninhas é influenciada por pertubações do meio, seja pelo incêndio florestal ou uso repetitivo de um mesmo herbicida, favorecendo espécies tolerantes e em altas densidades em função do relevo. A deriva pode provocar reduções drásticas no crescimento e acúmlo de madeira em plantios jovens, enquanto cultivos mais desenvolvidos, com 360 dias do plantio, não apresentam alterações em sua produtividade.Coordenação de Aperfeiçoamento de Pessoal de Nível Superiorapplication/pdfporUniversidade Federal de ViçosaMestrado em FitotecniaUFVBRPlantas daninhas, Alelopatia, Herbicidas e Resíduos; Fisiologia de culturas; Manejo pós-colheita deDerivaFitossociologiaHerbicidaDriftPhytosociologyHerbicideCNPQ::CIENCIAS AGRARIAS::AGRONOMIA::FITOTECNIADinâmica de plantas daninhas sob o uso frequente de glyphosate em cultivos de eucaliptoDynamics of weeds under the frequent use of glyphosate in eucalyptus plantationsinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisinfo:eu-repo/semantics/openAccessreponame:LOCUS Repositório Institucional da UFVinstname:Universidade Federal de Viçosa (UFV)instacron:UFVORIGINALtexto completo.pdfapplication/pdf1338243https://locus.ufv.br//bitstream/123456789/4616/1/texto%20completo.pdf7fe4e79e5eb9cba041723779d9aa85dcMD51TEXTtexto completo.pdf.txttexto completo.pdf.txtExtracted texttext/plain140733https://locus.ufv.br//bitstream/123456789/4616/2/texto%20completo.pdf.txt44c7664443390705517d07fc95821c77MD52THUMBNAILtexto completo.pdf.jpgtexto completo.pdf.jpgIM Thumbnailimage/jpeg3630https://locus.ufv.br//bitstream/123456789/4616/3/texto%20completo.pdf.jpg7e53337d65c0a8cdad777958598b354eMD53123456789/46162016-04-10 23:11:16.952oai:locus.ufv.br:123456789/4616Repositório InstitucionalPUBhttps://www.locus.ufv.br/oai/requestfabiojreis@ufv.bropendoar:21452016-04-11T02:11:16LOCUS Repositório Institucional da UFV - Universidade Federal de Viçosa (UFV)false |
dc.title.por.fl_str_mv |
Dinâmica de plantas daninhas sob o uso frequente de glyphosate em cultivos de eucalipto |
dc.title.alternative.eng.fl_str_mv |
Dynamics of weeds under the frequent use of glyphosate in eucalyptus plantations |
title |
Dinâmica de plantas daninhas sob o uso frequente de glyphosate em cultivos de eucalipto |
spellingShingle |
Dinâmica de plantas daninhas sob o uso frequente de glyphosate em cultivos de eucalipto Santos Júnior, Antônio dos Deriva Fitossociologia Herbicida Drift Phytosociology Herbicide CNPQ::CIENCIAS AGRARIAS::AGRONOMIA::FITOTECNIA |
title_short |
Dinâmica de plantas daninhas sob o uso frequente de glyphosate em cultivos de eucalipto |
title_full |
Dinâmica de plantas daninhas sob o uso frequente de glyphosate em cultivos de eucalipto |
title_fullStr |
Dinâmica de plantas daninhas sob o uso frequente de glyphosate em cultivos de eucalipto |
title_full_unstemmed |
Dinâmica de plantas daninhas sob o uso frequente de glyphosate em cultivos de eucalipto |
title_sort |
Dinâmica de plantas daninhas sob o uso frequente de glyphosate em cultivos de eucalipto |
author |
Santos Júnior, Antônio dos |
author_facet |
Santos Júnior, Antônio dos |
author_role |
author |
dc.contributor.authorLattes.por.fl_str_mv |
http://lattes.cnpq.br/8292851297406892 |
dc.contributor.author.fl_str_mv |
Santos Júnior, Antônio dos |
dc.contributor.advisor-co1.fl_str_mv |
Santos, Leonardo David Tuffi |
dc.contributor.advisor-co1Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4702818P4 |
dc.contributor.advisor1.fl_str_mv |
Ferreira, Francisco Affonso |
dc.contributor.advisor1Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4783387U7 |
dc.contributor.referee1.fl_str_mv |
Oliveira Neto, Silvio Nolasco de |
dc.contributor.referee1Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4723934E9 |
dc.contributor.referee2.fl_str_mv |
Sediyama, Carlos Sigueyuki |
dc.contributor.referee2Lattes.fl_str_mv |
http://lattes.cnpq.br/3647241087918239 |
contributor_str_mv |
Santos, Leonardo David Tuffi Ferreira, Francisco Affonso Oliveira Neto, Silvio Nolasco de Sediyama, Carlos Sigueyuki |
dc.subject.por.fl_str_mv |
Deriva Fitossociologia Herbicida |
topic |
Deriva Fitossociologia Herbicida Drift Phytosociology Herbicide CNPQ::CIENCIAS AGRARIAS::AGRONOMIA::FITOTECNIA |
dc.subject.eng.fl_str_mv |
Drift Phytosociology Herbicide |
dc.subject.cnpq.fl_str_mv |
CNPQ::CIENCIAS AGRARIAS::AGRONOMIA::FITOTECNIA |
description |
Weed management in homogeneous forests of eucalyptus involves among other factors the knowledge of the flora in the understory and its interaction with the disturbances in the middle, as well as the possible impacts of chemical control of these over the culture. Given the importance of the study of ecology of weeds and the impact of chemical management about the eucalyptus, three essays in order to assess: the behavior of the weed flora in eucalyptus plantations cultivated in three reliefs before and after the forest fire; behavior of weed community in three reliefs cultivated with eucalyptus subjected to repetitive use of glyphosate; and the effects of simulated glyphosate drift on eucalyptus plants depending on the age of the population. Eight evaluations were carried out phytosociologic over the cycle of development of eucalyptus in the areas of study in 30 permanent plots distributed in three reliefs: lowland, slope and top of hill, however, in the experiment where the understory vegetation was burned was held six assessments pre-fire and two post. In the simulated drift test was observed survival percentage increment in diameter at breast height (DBH), total height of the plant and in wood volume. The forest fire has altered dramatically the floristic composition favoring species more adapted to disturbed areas as the families Poaceae, Rubiaceae. Relief influenced in the presence of determined species such as Commelina benghalensis, Digitaria insulares, Richardia brasiliensis and Spermacoce latifolia, tolerant to glyphosate and due to the clear preference of the last two, for old soils as slope and top of hill. On the other hand, reducing the increments in DBH, height, and volume of wood, was proportional to the increase in leaf area in contact with glyphosate in smaller plants, which influenced on survival rate and plant stand with 90 days. In the population with 180 days, though showing reduction in increments, not death of the eucalyptus was observed. In plantations with 360 days, the eucalyptus was indifferent to the increase in area exposed to drift. The dynamics of weeds is influenced by environmental disturbances, whether by forest fire or repetitive use of the same herbicide, favoring species tolerant and in high densities in relief role. The drift may result in drastic reductions in growth and wood accumulation in young plantations, while most crops developed, with 360 days of planting, do not exhibit changes in their productivity. |
publishDate |
2013 |
dc.date.issued.fl_str_mv |
2013-07-19 |
dc.date.available.fl_str_mv |
2014-02-10 2015-03-26T13:40:00Z |
dc.date.accessioned.fl_str_mv |
2015-03-26T13:40:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
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info:eu-repo/semantics/masterThesis |
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masterThesis |
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publishedVersion |
dc.identifier.citation.fl_str_mv |
SANTOS JÚNIOR, Antônio dos. Dynamics of weeds under the frequent use of glyphosate in eucalyptus plantations. 2013. 71 f. Dissertação (Mestrado em Plantas daninhas, Alelopatia, Herbicidas e Resíduos; Fisiologia de culturas; Manejo pós-colheita de) - Universidade Federal de Viçosa, Viçosa, 2013. |
dc.identifier.uri.fl_str_mv |
http://locus.ufv.br/handle/123456789/4616 |
identifier_str_mv |
SANTOS JÚNIOR, Antônio dos. Dynamics of weeds under the frequent use of glyphosate in eucalyptus plantations. 2013. 71 f. Dissertação (Mestrado em Plantas daninhas, Alelopatia, Herbicidas e Resíduos; Fisiologia de culturas; Manejo pós-colheita de) - Universidade Federal de Viçosa, Viçosa, 2013. |
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Universidade Federal de Viçosa |
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Mestrado em Fitotecnia |
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UFV |
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Plantas daninhas, Alelopatia, Herbicidas e Resíduos; Fisiologia de culturas; Manejo pós-colheita de |
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Universidade Federal de Viçosa |
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