POPULATION INTERFERENCE OF GLYPHOSATE RESISTANT AND SUSCEPTIBLE RYEGRASS ON EUCALYPTUS INITIAL DEVELOPMENT

Detalhes bibliográficos
Autor(a) principal: Braga, A. F. [UNESP]
Data de Publicação: 2018
Outros Autores: Barroso, A. A. M. [UNESP], Amaral, C. L. [UNESP], Nepomuceno, M. P. [UNESP], Alves, P. L. C. A. [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1590/S0100-83582018360100086
http://hdl.handle.net/11449/184033
Resumo: The repetitive use of herbicides with the same mechanism of action causes the selection of resistant weeds, such as ryegrass. Considering the occurrence of ryegrass (Lolium multiflorum) in eucalyptus, a crop on which glyphosate is used, it is necessary to study its interference. The objective of this study was to evaluate the effect of densities (0, 10, 20, 30 and 50 plants m(-2)) of two ryegrass biotypes (resistant and susceptible to glyphosate) on seedlings of two eucalyptus clones (I-144 and 1407). The used experimental design was in randomized blocks with four replications, following a 2 x 5 factorial arrangement for each clone. The height and diameter of the clones were evaluated at 0, 14, 28, 42, 56 and 70 days after transplantation (DAT), and at 70 DAT, the leaf area and dry biomass of eucalyptus and ryegrass were also evaluated. There was no interaction between the biotype and densities factors for the clones, but all characteristics were affected by the factors separately. The increase in ryegrass densities affected all the characteristics evaluated in the clones, being the leaf area of the eucalyptus clones the most affected one, with reductions of up to 72%. The resistant biotype was less competitive, causing reductions in clones of up to 39% in leaf area, 5% in diameter and 1% in height, while the susceptible biotype resulted in reductions of 51%, 13% and 6%, respectively. Thus, the tolerable density by the culture to the resistant biotypes may be greater than that of the susceptible biotypes.
id UNSP_f4b29ee6619d141404292798975d131d
oai_identifier_str oai:repositorio.unesp.br:11449/184033
network_acronym_str UNSP
network_name_str Repositório Institucional da UNESP
repository_id_str 2946
spelling POPULATION INTERFERENCE OF GLYPHOSATE RESISTANT AND SUSCEPTIBLE RYEGRASS ON EUCALYPTUS INITIAL DEVELOPMENTLolium multiflorumEucalyptus urograndiscompetitionThe repetitive use of herbicides with the same mechanism of action causes the selection of resistant weeds, such as ryegrass. Considering the occurrence of ryegrass (Lolium multiflorum) in eucalyptus, a crop on which glyphosate is used, it is necessary to study its interference. The objective of this study was to evaluate the effect of densities (0, 10, 20, 30 and 50 plants m(-2)) of two ryegrass biotypes (resistant and susceptible to glyphosate) on seedlings of two eucalyptus clones (I-144 and 1407). The used experimental design was in randomized blocks with four replications, following a 2 x 5 factorial arrangement for each clone. The height and diameter of the clones were evaluated at 0, 14, 28, 42, 56 and 70 days after transplantation (DAT), and at 70 DAT, the leaf area and dry biomass of eucalyptus and ryegrass were also evaluated. There was no interaction between the biotype and densities factors for the clones, but all characteristics were affected by the factors separately. The increase in ryegrass densities affected all the characteristics evaluated in the clones, being the leaf area of the eucalyptus clones the most affected one, with reductions of up to 72%. The resistant biotype was less competitive, causing reductions in clones of up to 39% in leaf area, 5% in diameter and 1% in height, while the susceptible biotype resulted in reductions of 51%, 13% and 6%, respectively. Thus, the tolerable density by the culture to the resistant biotypes may be greater than that of the susceptible biotypes.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Univ Estadual Paulista, Jaboticabal, SP, BrazilUniv Estadual Paulista, Jaboticabal, SP, BrazilUniv Federal VicosaUniversidade Estadual Paulista (Unesp)Braga, A. F. [UNESP]Barroso, A. A. M. [UNESP]Amaral, C. L. [UNESP]Nepomuceno, M. P. [UNESP]Alves, P. L. C. A. [UNESP]2019-10-03T18:19:24Z2019-10-03T18:19:24Z2018-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article10application/pdfhttp://dx.doi.org/10.1590/S0100-83582018360100086Planta Daninha. Vicosa: Univ Federal Vicosa, v. 36, 10 p., 2018.0100-8358http://hdl.handle.net/11449/18403310.1590/S0100-83582018360100086S0100-83582018000100286WOS:000447688800001S0100-83582018000100286.pdf01033835242882120000-0003-2348-2121Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPlanta Daninhainfo:eu-repo/semantics/openAccess2023-11-19T06:15:20Zoai:repositorio.unesp.br:11449/184033Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T18:10:12.485962Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv POPULATION INTERFERENCE OF GLYPHOSATE RESISTANT AND SUSCEPTIBLE RYEGRASS ON EUCALYPTUS INITIAL DEVELOPMENT
title POPULATION INTERFERENCE OF GLYPHOSATE RESISTANT AND SUSCEPTIBLE RYEGRASS ON EUCALYPTUS INITIAL DEVELOPMENT
spellingShingle POPULATION INTERFERENCE OF GLYPHOSATE RESISTANT AND SUSCEPTIBLE RYEGRASS ON EUCALYPTUS INITIAL DEVELOPMENT
Braga, A. F. [UNESP]
Lolium multiflorum
Eucalyptus urograndis
competition
title_short POPULATION INTERFERENCE OF GLYPHOSATE RESISTANT AND SUSCEPTIBLE RYEGRASS ON EUCALYPTUS INITIAL DEVELOPMENT
title_full POPULATION INTERFERENCE OF GLYPHOSATE RESISTANT AND SUSCEPTIBLE RYEGRASS ON EUCALYPTUS INITIAL DEVELOPMENT
title_fullStr POPULATION INTERFERENCE OF GLYPHOSATE RESISTANT AND SUSCEPTIBLE RYEGRASS ON EUCALYPTUS INITIAL DEVELOPMENT
title_full_unstemmed POPULATION INTERFERENCE OF GLYPHOSATE RESISTANT AND SUSCEPTIBLE RYEGRASS ON EUCALYPTUS INITIAL DEVELOPMENT
title_sort POPULATION INTERFERENCE OF GLYPHOSATE RESISTANT AND SUSCEPTIBLE RYEGRASS ON EUCALYPTUS INITIAL DEVELOPMENT
author Braga, A. F. [UNESP]
author_facet Braga, A. F. [UNESP]
Barroso, A. A. M. [UNESP]
Amaral, C. L. [UNESP]
Nepomuceno, M. P. [UNESP]
Alves, P. L. C. A. [UNESP]
author_role author
author2 Barroso, A. A. M. [UNESP]
Amaral, C. L. [UNESP]
Nepomuceno, M. P. [UNESP]
Alves, P. L. C. A. [UNESP]
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Braga, A. F. [UNESP]
Barroso, A. A. M. [UNESP]
Amaral, C. L. [UNESP]
Nepomuceno, M. P. [UNESP]
Alves, P. L. C. A. [UNESP]
dc.subject.por.fl_str_mv Lolium multiflorum
Eucalyptus urograndis
competition
topic Lolium multiflorum
Eucalyptus urograndis
competition
description The repetitive use of herbicides with the same mechanism of action causes the selection of resistant weeds, such as ryegrass. Considering the occurrence of ryegrass (Lolium multiflorum) in eucalyptus, a crop on which glyphosate is used, it is necessary to study its interference. The objective of this study was to evaluate the effect of densities (0, 10, 20, 30 and 50 plants m(-2)) of two ryegrass biotypes (resistant and susceptible to glyphosate) on seedlings of two eucalyptus clones (I-144 and 1407). The used experimental design was in randomized blocks with four replications, following a 2 x 5 factorial arrangement for each clone. The height and diameter of the clones were evaluated at 0, 14, 28, 42, 56 and 70 days after transplantation (DAT), and at 70 DAT, the leaf area and dry biomass of eucalyptus and ryegrass were also evaluated. There was no interaction between the biotype and densities factors for the clones, but all characteristics were affected by the factors separately. The increase in ryegrass densities affected all the characteristics evaluated in the clones, being the leaf area of the eucalyptus clones the most affected one, with reductions of up to 72%. The resistant biotype was less competitive, causing reductions in clones of up to 39% in leaf area, 5% in diameter and 1% in height, while the susceptible biotype resulted in reductions of 51%, 13% and 6%, respectively. Thus, the tolerable density by the culture to the resistant biotypes may be greater than that of the susceptible biotypes.
publishDate 2018
dc.date.none.fl_str_mv 2018-01-01
2019-10-03T18:19:24Z
2019-10-03T18:19:24Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1590/S0100-83582018360100086
Planta Daninha. Vicosa: Univ Federal Vicosa, v. 36, 10 p., 2018.
0100-8358
http://hdl.handle.net/11449/184033
10.1590/S0100-83582018360100086
S0100-83582018000100286
WOS:000447688800001
S0100-83582018000100286.pdf
0103383524288212
0000-0003-2348-2121
url http://dx.doi.org/10.1590/S0100-83582018360100086
http://hdl.handle.net/11449/184033
identifier_str_mv Planta Daninha. Vicosa: Univ Federal Vicosa, v. 36, 10 p., 2018.
0100-8358
10.1590/S0100-83582018360100086
S0100-83582018000100286
WOS:000447688800001
S0100-83582018000100286.pdf
0103383524288212
0000-0003-2348-2121
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Planta Daninha
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 10
application/pdf
dc.publisher.none.fl_str_mv Univ Federal Vicosa
publisher.none.fl_str_mv Univ Federal Vicosa
dc.source.none.fl_str_mv Web of Science
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
_version_ 1808128904236367872