Sensibilidade de gen?tipos de milho geneticamente modificados a herbicidas

Detalhes bibliográficos
Autor(a) principal: Silva, M?rcio Marques da
Data de Publicação: 2019
Tipo de documento: Tese
Idioma: por
Título da fonte: Repositório Institucional da UFVJM
Texto Completo: http://acervo.ufvjm.edu.br/jspui/handle/1/2079
Resumo: ?rea de concentra??o: Produ??o Vegetal.
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spelling Silva, M?rcio Marques daDobbss, Leonardo BarrosPinto, N?sia Andrade Villela DessimoniSantos, Edson Aparecido dosSantos, Jos? Barbosa dosUniversidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM)Santos, Jos? Barbosa dos2019-11-12T17:07:35Z2019-11-12T17:07:35Z20192019-05-10SILVA, M?rcio Marques da. Sensibilidade de gen?tipos de milho geneticamente modificados a herbicidas. 2019. 80 p. Tese (Doutorado) ? Programa de P?s-Gradua??o em Produ??o Vegetal, Universidade Federal dos Vales do Jequitinhonha e Mucuri, Diamantina, 2019.http://acervo.ufvjm.edu.br/jspui/handle/1/2079?rea de concentra??o: Produ??o Vegetal.As culturas geneticamente modificadas (GM) t?m impulsionado o crescimento da agricultura nos ?ltimos anos. Por?m, o uso insustent?vel da tecnologia pode comprometer seu avan?o. O uso indiscriminado de herbicidas em culturas GM contribuiu para a sele??o de plantas daninhas resistentes. Herbicidas como glyphosate t?m despontado como o principal respons?vel pela sele??o dessas esp?cies. Para tanto, op??es de manejo de plantas daninhas em culturas GM est?o em estudos, com a finalidade de reduzir a press?o dessas mol?culas sobre as plantas daninhas. A mesma situa??o tamb?m come?a a ser descrita para o ammonium glufosinate que ? uma alternativa ao glyphosate. Atentos ?s proje??es, estudos envolvendo alternativas de manejo nessas culturas devem ser realizados. Com isso, objetivou-se nesse estudo, avaliar a seguran?a da aplica??o dos herbicidas atrazine e nicosulfuron, sobre os gen?tipos de milho GM, Herculex? e PowerCore?. Estudos a campo foram realizados envolvendo tr?s gen?tipos de milho, dois gen?tipos GM Herculex? e PowerCore?, e um isoh?brido, isento dos transgenes (controle). Os gen?tipos foram submetidos aos herbicidas atrazine, nicosulfuron e ammonium glufosinate nas safras de 2016 e 2017. Ap?s a aplica??o, foram avaliadas a atividade fisiol?gicas das plantas por meio da an?lise de fluoresc?ncia da clorofila a. Tamb?m avaliadas a atividade oxidativa das enzimas catalase (CAT), super?xido dismutase (SOD) e peroxidase do ascorbato (APX). Aos 100 dias ap?s a semeadura, plantas foram coletadas para avalia??o da composi??o qu?mico-bromatol?gicas, e no est?gio R6 foram coletados os gr?os para avalia??o da produ??o e composi??o qu?mica. Os herbicidas promoveram estresse vegetal no s?timo dia ap?s a aplica??o no gen?tipo Herculex. Ammonium glufosinate, nicosulfuron e atrazine + nicosulfuron reduziram a atividade da CAT, SOD, e o atrazine aumentou a atividade das enzimas. N?o foi observado efeito dos herbicidas sobre a produ??o dos gr?os. A aplica??o de atrazine, nicosulfuron e ammonium glufosinate n?o afetaram a composi??o qu?mico bromatol?gica das plantas, qualidade qu?mica e rendimentos de gr?os de milho GM.Submitted by Nivaldo Melo (nivaldo.melo@ufvjm.edu.br) on 2019-11-05T14:00:33Z No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) marcio_marques_silva.pdf: 1378936 bytes, checksum: 65ce389cbf5c549aaeb399bebe54cfd6 (MD5)Approved for entry into archive by Jos? Henrique Henrique (jose.neves@ufvjm.edu.br) on 2019-11-12T17:07:35Z (GMT) No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) marcio_marques_silva.pdf: 1378936 bytes, checksum: 65ce389cbf5c549aaeb399bebe54cfd6 (MD5)Made available in DSpace on 2019-11-12T17:07:35Z (GMT). No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) marcio_marques_silva.pdf: 1378936 bytes, checksum: 65ce389cbf5c549aaeb399bebe54cfd6 (MD5) Previous issue date: 2019Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (CAPES)Tese (Doutorado) ? Programa de P?s-Gradua??o em Produ??o Vegetal, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2019.Genetically modified (GM) crops have boosted agricultural growth in recent years. However, the unsustainable use of technology can threaten its advancement. The indiscriminate use of herbicides in GM crops contributed to the selection of resistant weeds. Herbicides like glyphosate have emerged as the main responsible for the selection of these species. Therefore, weed management options in GM crops are under study, in order to reduce the pressure of these molecules on weeds. The same situation also begins to be described for ammonium glufosinate which is an alternative to glyphosate. Attentive to the projections, studies involving management alternatives in these crops should be carried out. The objective of this study was to evaluate the safety of herbicides atrazine and nicosulfuron on GM, Herculex? and PowerCore? maize genotypes. Field studies were carried out involving three maize genotypes, two GM Herculex? and PowerCore? genotypes, and one isogenic, free of transgenes (control). The genotypes were submitted to the herbicides atrazine, nicosulfuron and ammonium glufosinate in the harvests of 2016 and 2017. After application, the physiological activity of the plants was evaluated by fluorescence analysis of chlorophyll a. The oxidative activity of the catalase (CAT), superoxide dismutase (SOD) and ascorbate peroxidase (APX) enzymes were also evaluated. At 100 days after sowing, plants were collected to evaluate the chemical-bromatological composition, and in the R6 stage the grains were collected for evaluation of the chemical composition and composition. The herbicides promoted plant stress on the seventh day after application in the Herculex genotype. Ammonium glufosinate, nicosulfuron and atrazine + nicosulfuron reduced CAT, SOD activity, and atrazine increased enzyme activity. No effect of herbicides on grain yield was observed. The application of atrazine, nicosulfuron and ammonium glufosinate did not affect the chemical composition of plants, chemical quality and grain yield of GM maize.porUFVJMA concess?o da licen?a deste item refere-se ao ? termo de autoriza??o impresso assinado pelo autor, assim como na licen?a Creative Commons, com as seguintes condi??es: Na qualidade de titular dos direitos de autor da publica??o, autorizo a Universidade Federal dos Vales do Jequitinhonha e Mucuri e o IBICT a disponibilizar por meio de seus reposit?rios, sem ressarcimento dos direitos autorais, de acordo com a Lei n? 9610/98, o texto integral da obra disponibilizada, conforme permiss?es assinaladas, para fins de leitura, impress?o e/ou download, a t?tulo de divulga??o da produ??o cient?fica brasileira, e preserva??o, a partir desta data.info:eu-repo/semantics/openAccessSensibilidade de gen?tipos de milho geneticamente modificados a herbicidasSensitivity of genotypes of corn genetically modified to herbicidesinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisZea mays L.AtrazineNicosulfuronAscorbate peroxidaseOxidative stressNeutral detergent fiberGlufosinate-ammoniumSuperoxide dismutaseAscorbato peroxidaseExtresse oxidativoFibra em detergente neutroAmmonium glufosinateSuper?xido dismutasereponame:Repositório Institucional da UFVJMinstname:Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM)instacron:UFVJMTEXTmarcio_marques_silva.pdf.txtmarcio_marques_silva.pdf.txtExtracted texttext/plain152748http://acervo.ufvjm.edu.br/jspui/bitstream/1/2079/7/marcio_marques_silva.pdf.txt8808c8cda59ce6d9b1b4cf830eed5355MD57LICENSElicense.txtlicense.txttext/plain; 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dc.title.pt_BR.fl_str_mv Sensibilidade de gen?tipos de milho geneticamente modificados a herbicidas
dc.title.alternative.en.fl_str_mv Sensitivity of genotypes of corn genetically modified to herbicides
title Sensibilidade de gen?tipos de milho geneticamente modificados a herbicidas
spellingShingle Sensibilidade de gen?tipos de milho geneticamente modificados a herbicidas
Silva, M?rcio Marques da
Zea mays L.
Atrazine
Nicosulfuron
Ascorbate peroxidase
Oxidative stress
Neutral detergent fiber
Glufosinate-ammonium
Superoxide dismutase
Ascorbato peroxidase
Extresse oxidativo
Fibra em detergente neutro
Ammonium glufosinate
Super?xido dismutase
title_short Sensibilidade de gen?tipos de milho geneticamente modificados a herbicidas
title_full Sensibilidade de gen?tipos de milho geneticamente modificados a herbicidas
title_fullStr Sensibilidade de gen?tipos de milho geneticamente modificados a herbicidas
title_full_unstemmed Sensibilidade de gen?tipos de milho geneticamente modificados a herbicidas
title_sort Sensibilidade de gen?tipos de milho geneticamente modificados a herbicidas
author Silva, M?rcio Marques da
author_facet Silva, M?rcio Marques da
author_role author
dc.contributor.referee.none.fl_str_mv Dobbss, Leonardo Barros
Pinto, N?sia Andrade Villela Dessimoni
Santos, Edson Aparecido dos
Santos, Jos? Barbosa dos
dc.contributor.institution.pt_BR.fl_str_mv Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM)
dc.contributor.author.fl_str_mv Silva, M?rcio Marques da
dc.contributor.advisor1.fl_str_mv Santos, Jos? Barbosa dos
contributor_str_mv Santos, Jos? Barbosa dos
dc.subject.keyword.en.fl_str_mv Zea mays L.
Atrazine
Nicosulfuron
Ascorbate peroxidase
Oxidative stress
Neutral detergent fiber
Glufosinate-ammonium
Superoxide dismutase
topic Zea mays L.
Atrazine
Nicosulfuron
Ascorbate peroxidase
Oxidative stress
Neutral detergent fiber
Glufosinate-ammonium
Superoxide dismutase
Ascorbato peroxidase
Extresse oxidativo
Fibra em detergente neutro
Ammonium glufosinate
Super?xido dismutase
dc.subject.keyword.pt_BR.fl_str_mv Ascorbato peroxidase
Extresse oxidativo
Fibra em detergente neutro
Ammonium glufosinate
Super?xido dismutase
description ?rea de concentra??o: Produ??o Vegetal.
publishDate 2019
dc.date.submitted.none.fl_str_mv 2019-05-10
dc.date.accessioned.fl_str_mv 2019-11-12T17:07:35Z
dc.date.available.fl_str_mv 2019-11-12T17:07:35Z
dc.date.issued.fl_str_mv 2019
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/doctoralThesis
format doctoralThesis
status_str publishedVersion
dc.identifier.citation.fl_str_mv SILVA, M?rcio Marques da. Sensibilidade de gen?tipos de milho geneticamente modificados a herbicidas. 2019. 80 p. Tese (Doutorado) ? Programa de P?s-Gradua??o em Produ??o Vegetal, Universidade Federal dos Vales do Jequitinhonha e Mucuri, Diamantina, 2019.
dc.identifier.uri.fl_str_mv http://acervo.ufvjm.edu.br/jspui/handle/1/2079
identifier_str_mv SILVA, M?rcio Marques da. Sensibilidade de gen?tipos de milho geneticamente modificados a herbicidas. 2019. 80 p. Tese (Doutorado) ? Programa de P?s-Gradua??o em Produ??o Vegetal, Universidade Federal dos Vales do Jequitinhonha e Mucuri, Diamantina, 2019.
url http://acervo.ufvjm.edu.br/jspui/handle/1/2079
dc.language.iso.fl_str_mv por
language por
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv UFVJM
publisher.none.fl_str_mv UFVJM
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFVJM
instname:Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM)
instacron:UFVJM
instname_str Universidade Federal dos Vales do Jequitinhonha e Mucuri (UFVJM)
instacron_str UFVJM
institution UFVJM
reponame_str Repositório Institucional da UFVJM
collection Repositório Institucional da UFVJM
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