Resistência ao glifosato em biótipos de Digitaria insularis e nível de dano econômico em soja e milho
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Tipo de documento: | Tese |
Idioma: | por |
Título da fonte: | Biblioteca Digital de Teses e Dissertações do UNIOESTE |
Texto Completo: | http://tede.unioeste.br/handle/tede/4466 |
Resumo: | The Digitaria insularis has been distinguished by glyphosate resistance, biological alterations, difficult control and also the damage caused to soybean and corn. Therefore, if there is a change in the biological factors that act as resistance mechanisms in resistant D. insularis populations, there may be a change in the of Economic Threshold Level of this biotype in soybean and safrinha corn crop. Given the above, the objective of this work was to evaluate the absorption and translocation of glyphosate herbicide, the accumulation of shikimic acid, the anatomical characteristics of the leaves and the Economic Threshold Level in soybean and safrinha corn of two populations of D. insularis (resistant and susceptible) collected in agricultural areas in Paraná state. First the test was performed to prove the resistance and the Resistance Factor (FR80). In the study of the absorption and translocation of glyphosate herbicide and the accumulation of shikimic acid, a randomized complete block design in a 2x9 factorial scheme with four replications was used. The first factor was D. insularis biotypes (resistant and susceptible) and the second factor was the time of herbicide contact with the leaves of D. insularis plants m-2 (0; 2; 4; 8; 12; 24, 36, 48 and 72 hours). To determine the absorption, the percentage of control of the plants was verified. Shikimic acid accumulation in D. insularis biotypes was determined on harvested leaves that did not receive spraying. For the Economic Threshold Level experiments on soybean and safrinha corn, a randomized complete block design was used, in a 2x5 factorial scheme, with four replications. The first factor corresponded to D. insularis biotypes (susceptible and resistant) and the second factor, the densities of 0; 7; 14; 28 and 56 D. insularis plants m-2. The preliminary test to confirm the degree of resistance of D. insularis biotypes indicated the resistance of the biotype collected at PUC Toledo - PR experimental station, with FR80 equal to 19.3. The control of the resistant biotype observed at 28 DAA was considered satisfactory (80%) when the herbicide remained for 48 hours in contact with the applied leaf. In the susceptible biotype, satisfactory control occurred after eight hours of herbicide contact with the leaf. In resistant biotype, shikimic acid accumulation increased by 1.8 times from 0 to 12 HAA. In the susceptible it was verified that the accumulation increased twice. There was no change in the Economic Threshold Level on soybean crop among glyphosate resistant and insects susceptible D. insularis biotypes. Considering the low cost of D. insularis control and the high selling price of soybean for the 2017/18 crop, it was possible to determine the Economic Threshold Level of 0.86 plants m-2 of D. insularis. In safrinha corn crop, Economic Threshold Levels were different for glyphosate resistant and susceptible D. insularis biotypes. The differences may have occurred mainly due to the environmental conditions verified between the evaluated years. Therefore, considering the average values of grains and control cost for the year 2017 the Economic Threshold Level was 17.4 and 22.9 plants m-2 of the resistant and susceptible biotype, respectively and in 2018 the Economic Threshold Level. It was 13.7 plants m-2 for the resistant biotype and 11.6 plants m-2 for the susceptible biotype. |
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Costa, Neumárcio Vilanova dahttp://lattes.cnpq.br/8328839002732737Costa, Neumárcio Vilanova dahttp://lattes.cnpq.br/8328839002732737Duarte Júnior, José Barbosahttp://lattes.cnpq.br/6562477237400151Silva, Shirley Martinshttp://lattes.cnpq.br/8306632785180942Rosado, Adriana Fiorinihttp://lattes.cnpq.br/7752079608717875Fialho, Cíntia Maria Teixeirahttp://lattes.cnpq.br/1746144814575933http://lattes.cnpq.br/0270087159948589Ferreira, Silvio Douglas2019-09-18T12:27:59Z2019-06-13FERREIRA, Silvio Douglas. Resistência ao glifosato em biótipos de Digitaria insularis e nível de dano econômico em soja e milho. 2019. 179 f. Tese (Doutorado em Agronomia) - Universidade Estadual do Oeste do Paraná, Marechal Cândido Rondon, 2019.http://tede.unioeste.br/handle/tede/4466The Digitaria insularis has been distinguished by glyphosate resistance, biological alterations, difficult control and also the damage caused to soybean and corn. Therefore, if there is a change in the biological factors that act as resistance mechanisms in resistant D. insularis populations, there may be a change in the of Economic Threshold Level of this biotype in soybean and safrinha corn crop. Given the above, the objective of this work was to evaluate the absorption and translocation of glyphosate herbicide, the accumulation of shikimic acid, the anatomical characteristics of the leaves and the Economic Threshold Level in soybean and safrinha corn of two populations of D. insularis (resistant and susceptible) collected in agricultural areas in Paraná state. First the test was performed to prove the resistance and the Resistance Factor (FR80). In the study of the absorption and translocation of glyphosate herbicide and the accumulation of shikimic acid, a randomized complete block design in a 2x9 factorial scheme with four replications was used. The first factor was D. insularis biotypes (resistant and susceptible) and the second factor was the time of herbicide contact with the leaves of D. insularis plants m-2 (0; 2; 4; 8; 12; 24, 36, 48 and 72 hours). To determine the absorption, the percentage of control of the plants was verified. Shikimic acid accumulation in D. insularis biotypes was determined on harvested leaves that did not receive spraying. For the Economic Threshold Level experiments on soybean and safrinha corn, a randomized complete block design was used, in a 2x5 factorial scheme, with four replications. The first factor corresponded to D. insularis biotypes (susceptible and resistant) and the second factor, the densities of 0; 7; 14; 28 and 56 D. insularis plants m-2. The preliminary test to confirm the degree of resistance of D. insularis biotypes indicated the resistance of the biotype collected at PUC Toledo - PR experimental station, with FR80 equal to 19.3. The control of the resistant biotype observed at 28 DAA was considered satisfactory (80%) when the herbicide remained for 48 hours in contact with the applied leaf. In the susceptible biotype, satisfactory control occurred after eight hours of herbicide contact with the leaf. In resistant biotype, shikimic acid accumulation increased by 1.8 times from 0 to 12 HAA. In the susceptible it was verified that the accumulation increased twice. There was no change in the Economic Threshold Level on soybean crop among glyphosate resistant and insects susceptible D. insularis biotypes. Considering the low cost of D. insularis control and the high selling price of soybean for the 2017/18 crop, it was possible to determine the Economic Threshold Level of 0.86 plants m-2 of D. insularis. In safrinha corn crop, Economic Threshold Levels were different for glyphosate resistant and susceptible D. insularis biotypes. The differences may have occurred mainly due to the environmental conditions verified between the evaluated years. Therefore, considering the average values of grains and control cost for the year 2017 the Economic Threshold Level was 17.4 and 22.9 plants m-2 of the resistant and susceptible biotype, respectively and in 2018 the Economic Threshold Level. It was 13.7 plants m-2 for the resistant biotype and 11.6 plants m-2 for the susceptible biotype.A Digitaria insularis tem se destacado pela resistência ao glyphosate, alterações biológicas, difícil controle e também pelos prejuízos causados na cultura da soja e do milho. Portanto, se ocorre alteração dos fatores biológicos que funcionam como mecanismos de resistências em populações de D. insularis resistente, pode ocorrer alteração no nível de dano econômico deste biótipo na cultura da soja e do milho safrinha. Diante do exposto o trabalho teve como objetivos avaliar a absorção e translocação do herbicida glyphosate, o acúmulo do ácido chiquímico, as características anatômicas das folhas e o Nível de Dano Econômico na cultura da soja e do milho safrinha de duas populações de D. insularis (resistente e suscetível) coletadas em áreas agrícolas no Paraná. Primeiramente realizou-se o teste para comprovar a resistência e o Fator da Resistência (FR80). No estudo da absorção e translocação do herbicida glyphosate e o acúmulo do ácido chiquímico, utilizou-se o delineamento experimental em blocos casualizados, em esquema fatorial 2x9, com quatro repetições. O primeiro fator foi constituído pelos biótipos de D. insularis (resistente e suscetível) e o segundo fator, pelo tempo de contato do herbicida com as folhas das plantas m-2 de D. insularis (0; 2; 4; 8; 12; 24; 36; 48 e 72 horas). Para determinar a absorção, verificou-se o percentual de controle das plantas. O acúmulo de ácido chiquímico nos biótipos de D. insularis foi determinado nas folhas colhidas que não receberam a pulverização. Para os experimentos do Nível de Dano Econômico na cultura da soja e milho safrinha foi utilizado o delineamento em blocos casualizados, no esquema fatorial 2x5, com quatro repetições. O primeiro fator correspondeu aos biótipos de D. insularis (suscetível e resistente) e segundo fator, as densidades de 0; 7; 14; 28 e 56 plantas m-2 de D. insularis. O teste preliminar da confirmação do grau de resistência dos biótipos de D. insularis, indicaram a resistência do biótipo coletado na estação experimental da PUC Toledo – PR, com FR80 igual a 19,3. O controle do biótipo resistente observado as 28 DAA foi considerado satisfatório (80%) quando o herbicida permaneceu por 48 horas em contato com a folha aplicada. Enquanto, no biótipo suscetível o controle satisfatório ocorreu a partir das oito horas de contato do herbicida com a folha. No biótipo resistente, o acúmulo de ácido chiquímico aumentou em 1,8 vezes do 0 para as 12 HAA. No suscetível foi verificado que o acúmulo aumentou duas vezes. Não houve alteração no Nível de Dano Econômico na cultura da soja entre os biótipos de D. insularis resistente e suscetível ao glyphosate. Ao considerar o baixo custo de controle da D. insularis e o elevado preço de venda da soja para a safra 2017/18, foi possível determinar o Nível de Dano Econômico de 0,86 plantas m-2 da D. insularis. Na cultura do milho safrinha, os Níveis de Dano Econômicos foram diferentes para os biótipos de Digitaria insularis resistente e suscetível ao glyphosate. As diferenças podem ter ocorrido principalmente em virtude das condições ambientais verificadas entre os anos avaliados. Portanto, considerando os valores médios dos grãos e do custo de controle para o ano 2017 o Nível de Dano Econômico foi de 17,4 e 22,9 plantas m-2 do biótipo resistente e suscetível, respectivamente e em 2018 o Nível de Dano Econômico ficou em 13,7 plantas m-2 do biótipo resistente e 11,6 plantas m-2 para o biótipo suscetível.Submitted by Helena Bejio (helena.bejio@unioeste.br) on 2019-09-18T12:27:59Z No. of bitstreams: 2 Silvio_Ferreira_2019.pdf: 3155182 bytes, checksum: 36c9c4ce42428468f7d0787bb98a5bc3 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)Made available in DSpace on 2019-09-18T12:27:59Z (GMT). No. of bitstreams: 2 Silvio_Ferreira_2019.pdf: 3155182 bytes, checksum: 36c9c4ce42428468f7d0787bb98a5bc3 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Previous issue date: 2019-06-13Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPESapplication/pdfpor-6392337873870130111500Universidade Estadual do Oeste do ParanáMarechal Cândido RondonPrograma de Pós-Graduação em AgronomiaUNIOESTEBrasilCentro de Ciências Agráriashttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessPlanta daninhaCapim-amargosoGlycine maxZea maysCIÊNCIAS AGRÁRIAS:AGRONOMIAResistência ao glifosato em biótipos de Digitaria insularis e nível de dano econômico em soja e milhoinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesis5624066117035054290600600600-75855939502896689802075167498588264571reponame:Biblioteca Digital de Teses e Dissertações do UNIOESTEinstname:Universidade Estadual do Oeste do Paraná (UNIOESTE)instacron:UNIOESTEORIGINALSilvio_Ferreira_2019.pdfSilvio_Ferreira_2019.pdfapplication/pdf3155182http://tede.unioeste.br:8080/tede/bitstream/tede/4466/5/Silvio_Ferreira_2019.pdf36c9c4ce42428468f7d0787bb98a5bc3MD55CC-LICENSElicense_urllicense_urltext/plain; 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dc.title.por.fl_str_mv |
Resistência ao glifosato em biótipos de Digitaria insularis e nível de dano econômico em soja e milho |
title |
Resistência ao glifosato em biótipos de Digitaria insularis e nível de dano econômico em soja e milho |
spellingShingle |
Resistência ao glifosato em biótipos de Digitaria insularis e nível de dano econômico em soja e milho Ferreira, Silvio Douglas Planta daninha Capim-amargoso Glycine max Zea mays CIÊNCIAS AGRÁRIAS:AGRONOMIA |
title_short |
Resistência ao glifosato em biótipos de Digitaria insularis e nível de dano econômico em soja e milho |
title_full |
Resistência ao glifosato em biótipos de Digitaria insularis e nível de dano econômico em soja e milho |
title_fullStr |
Resistência ao glifosato em biótipos de Digitaria insularis e nível de dano econômico em soja e milho |
title_full_unstemmed |
Resistência ao glifosato em biótipos de Digitaria insularis e nível de dano econômico em soja e milho |
title_sort |
Resistência ao glifosato em biótipos de Digitaria insularis e nível de dano econômico em soja e milho |
author |
Ferreira, Silvio Douglas |
author_facet |
Ferreira, Silvio Douglas |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Costa, Neumárcio Vilanova da |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/8328839002732737 |
dc.contributor.referee1.fl_str_mv |
Costa, Neumárcio Vilanova da |
dc.contributor.referee1Lattes.fl_str_mv |
http://lattes.cnpq.br/8328839002732737 |
dc.contributor.referee2.fl_str_mv |
Duarte Júnior, José Barbosa |
dc.contributor.referee2Lattes.fl_str_mv |
http://lattes.cnpq.br/6562477237400151 |
dc.contributor.referee3.fl_str_mv |
Silva, Shirley Martins |
dc.contributor.referee3Lattes.fl_str_mv |
http://lattes.cnpq.br/8306632785180942 |
dc.contributor.referee4.fl_str_mv |
Rosado, Adriana Fiorini |
dc.contributor.referee4Lattes.fl_str_mv |
http://lattes.cnpq.br/7752079608717875 |
dc.contributor.referee5.fl_str_mv |
Fialho, Cíntia Maria Teixeira |
dc.contributor.referee5Lattes.fl_str_mv |
http://lattes.cnpq.br/1746144814575933 |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/0270087159948589 |
dc.contributor.author.fl_str_mv |
Ferreira, Silvio Douglas |
contributor_str_mv |
Costa, Neumárcio Vilanova da Costa, Neumárcio Vilanova da Duarte Júnior, José Barbosa Silva, Shirley Martins Rosado, Adriana Fiorini Fialho, Cíntia Maria Teixeira |
dc.subject.por.fl_str_mv |
Planta daninha Capim-amargoso Glycine max Zea mays |
topic |
Planta daninha Capim-amargoso Glycine max Zea mays CIÊNCIAS AGRÁRIAS:AGRONOMIA |
dc.subject.cnpq.fl_str_mv |
CIÊNCIAS AGRÁRIAS:AGRONOMIA |
description |
The Digitaria insularis has been distinguished by glyphosate resistance, biological alterations, difficult control and also the damage caused to soybean and corn. Therefore, if there is a change in the biological factors that act as resistance mechanisms in resistant D. insularis populations, there may be a change in the of Economic Threshold Level of this biotype in soybean and safrinha corn crop. Given the above, the objective of this work was to evaluate the absorption and translocation of glyphosate herbicide, the accumulation of shikimic acid, the anatomical characteristics of the leaves and the Economic Threshold Level in soybean and safrinha corn of two populations of D. insularis (resistant and susceptible) collected in agricultural areas in Paraná state. First the test was performed to prove the resistance and the Resistance Factor (FR80). In the study of the absorption and translocation of glyphosate herbicide and the accumulation of shikimic acid, a randomized complete block design in a 2x9 factorial scheme with four replications was used. The first factor was D. insularis biotypes (resistant and susceptible) and the second factor was the time of herbicide contact with the leaves of D. insularis plants m-2 (0; 2; 4; 8; 12; 24, 36, 48 and 72 hours). To determine the absorption, the percentage of control of the plants was verified. Shikimic acid accumulation in D. insularis biotypes was determined on harvested leaves that did not receive spraying. For the Economic Threshold Level experiments on soybean and safrinha corn, a randomized complete block design was used, in a 2x5 factorial scheme, with four replications. The first factor corresponded to D. insularis biotypes (susceptible and resistant) and the second factor, the densities of 0; 7; 14; 28 and 56 D. insularis plants m-2. The preliminary test to confirm the degree of resistance of D. insularis biotypes indicated the resistance of the biotype collected at PUC Toledo - PR experimental station, with FR80 equal to 19.3. The control of the resistant biotype observed at 28 DAA was considered satisfactory (80%) when the herbicide remained for 48 hours in contact with the applied leaf. In the susceptible biotype, satisfactory control occurred after eight hours of herbicide contact with the leaf. In resistant biotype, shikimic acid accumulation increased by 1.8 times from 0 to 12 HAA. In the susceptible it was verified that the accumulation increased twice. There was no change in the Economic Threshold Level on soybean crop among glyphosate resistant and insects susceptible D. insularis biotypes. Considering the low cost of D. insularis control and the high selling price of soybean for the 2017/18 crop, it was possible to determine the Economic Threshold Level of 0.86 plants m-2 of D. insularis. In safrinha corn crop, Economic Threshold Levels were different for glyphosate resistant and susceptible D. insularis biotypes. The differences may have occurred mainly due to the environmental conditions verified between the evaluated years. Therefore, considering the average values of grains and control cost for the year 2017 the Economic Threshold Level was 17.4 and 22.9 plants m-2 of the resistant and susceptible biotype, respectively and in 2018 the Economic Threshold Level. It was 13.7 plants m-2 for the resistant biotype and 11.6 plants m-2 for the susceptible biotype. |
publishDate |
2019 |
dc.date.accessioned.fl_str_mv |
2019-09-18T12:27:59Z |
dc.date.issued.fl_str_mv |
2019-06-13 |
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 |
FERREIRA, Silvio Douglas. Resistência ao glifosato em biótipos de Digitaria insularis e nível de dano econômico em soja e milho. 2019. 179 f. Tese (Doutorado em Agronomia) - Universidade Estadual do Oeste do Paraná, Marechal Cândido Rondon, 2019. |
dc.identifier.uri.fl_str_mv |
http://tede.unioeste.br/handle/tede/4466 |
identifier_str_mv |
FERREIRA, Silvio Douglas. Resistência ao glifosato em biótipos de Digitaria insularis e nível de dano econômico em soja e milho. 2019. 179 f. Tese (Doutorado em Agronomia) - Universidade Estadual do Oeste do Paraná, Marechal Cândido Rondon, 2019. |
url |
http://tede.unioeste.br/handle/tede/4466 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.program.fl_str_mv |
5624066117035054290 |
dc.relation.confidence.fl_str_mv |
600 600 600 |
dc.relation.department.fl_str_mv |
-7585593950289668980 |
dc.relation.sponsorship.fl_str_mv |
2075167498588264571 |
dc.rights.driver.fl_str_mv |
http://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
http://creativecommons.org/licenses/by/4.0/ |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Estadual do Oeste do Paraná Marechal Cândido Rondon |
dc.publisher.program.fl_str_mv |
Programa de Pós-Graduação em Agronomia |
dc.publisher.initials.fl_str_mv |
UNIOESTE |
dc.publisher.country.fl_str_mv |
Brasil |
dc.publisher.department.fl_str_mv |
Centro de Ciências Agrárias |
publisher.none.fl_str_mv |
Universidade Estadual do Oeste do Paraná Marechal Cândido Rondon |
dc.source.none.fl_str_mv |
reponame:Biblioteca Digital de Teses e Dissertações do UNIOESTE instname:Universidade Estadual do Oeste do Paraná (UNIOESTE) instacron:UNIOESTE |
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Universidade Estadual do Oeste do Paraná (UNIOESTE) |
instacron_str |
UNIOESTE |
institution |
UNIOESTE |
reponame_str |
Biblioteca Digital de Teses e Dissertações do UNIOESTE |
collection |
Biblioteca Digital de Teses e Dissertações do UNIOESTE |
bitstream.url.fl_str_mv |
http://tede.unioeste.br:8080/tede/bitstream/tede/4466/5/Silvio_Ferreira_2019.pdf http://tede.unioeste.br:8080/tede/bitstream/tede/4466/2/license_url http://tede.unioeste.br:8080/tede/bitstream/tede/4466/3/license_text http://tede.unioeste.br:8080/tede/bitstream/tede/4466/4/license_rdf http://tede.unioeste.br:8080/tede/bitstream/tede/4466/1/license.txt |
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Biblioteca Digital de Teses e Dissertações do UNIOESTE - Universidade Estadual do Oeste do Paraná (UNIOESTE) |
repository.mail.fl_str_mv |
biblioteca.repositorio@unioeste.br |
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1801124562246565888 |