Management of Ramularia leaf spot on cotton using integrated control with genotypes, a fungicide and Trichoderma asperellum

Detalhes bibliográficos
Autor(a) principal: Silva, Juliano Cesar da [UNESP]
Data de Publicação: 2017
Outros Autores: Suassuna, Nelson Dias, Bettiol, Wagner
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1016/j.cropro.2016.12.006
http://hdl.handle.net/11449/159381
Resumo: Ramularia leaf spot, caused by Ramularia areola, is responsible for premature defoliation of cotton, resulting in potential reductions in yield. The objective of this study was to evaluate integrated control using genotypes, a fungicide and Trichoderma asperellum to manage Ramularia leaf spot on cotton. In the greenhouse, the resistance of eighteen genotypes was evaluated with two isolates of R. areola (IMA 244 and IMA 237). In field, the severity of Ramularia leaf spot was evaluated on cotton genotypes CNPA MT 2009-1381, CNPA GO 2007-419, BRS 293, BRS 372, CNPA GO 2008-1265 and FMT 701 treated or untreated with a fungicide in Primavera do Leste, MT, Correntina, BA, and Santa Helena de Goias, GO, during the 2011-2012 season. The varieties BRS 293 and BRS 372 were sprayed with a fungicide or Trichoderma in Sapezal, MT, during the 2012-2013 season, and the disease severity and fiber yield were evaluated. Significant interactions were detected between Ramularia isolates and cotton genotypes; the lowest disease severity was observed with IMA CD 05-8276 and CNPA GO 2007-419 genotypes. In the field tests, the lowest disease severity was with variety BRS 372 and the highest was with BRS 293, when grown in two different regions. The chemical fungicide and T. asperellum both reduced the disease severity in cotton varieties BRS 372 and BRS 293; however, yields were not significantly affected. In conclusion, an integrated strategy with the management tools of resistant varieties, fungicides and biocontrol agents should be used to control Ramularia leaf spot on cotton. (C) 2016 Elsevier Ltd. All rights reserved.
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spelling Management of Ramularia leaf spot on cotton using integrated control with genotypes, a fungicide and Trichoderma asperellumCotton varietiesGossypium hirsutumRamularia areolaRamularia leaf spotBiological controlRamularia leaf spot, caused by Ramularia areola, is responsible for premature defoliation of cotton, resulting in potential reductions in yield. The objective of this study was to evaluate integrated control using genotypes, a fungicide and Trichoderma asperellum to manage Ramularia leaf spot on cotton. In the greenhouse, the resistance of eighteen genotypes was evaluated with two isolates of R. areola (IMA 244 and IMA 237). In field, the severity of Ramularia leaf spot was evaluated on cotton genotypes CNPA MT 2009-1381, CNPA GO 2007-419, BRS 293, BRS 372, CNPA GO 2008-1265 and FMT 701 treated or untreated with a fungicide in Primavera do Leste, MT, Correntina, BA, and Santa Helena de Goias, GO, during the 2011-2012 season. The varieties BRS 293 and BRS 372 were sprayed with a fungicide or Trichoderma in Sapezal, MT, during the 2012-2013 season, and the disease severity and fiber yield were evaluated. Significant interactions were detected between Ramularia isolates and cotton genotypes; the lowest disease severity was observed with IMA CD 05-8276 and CNPA GO 2007-419 genotypes. In the field tests, the lowest disease severity was with variety BRS 372 and the highest was with BRS 293, when grown in two different regions. The chemical fungicide and T. asperellum both reduced the disease severity in cotton varieties BRS 372 and BRS 293; however, yields were not significantly affected. In conclusion, an integrated strategy with the management tools of resistant varieties, fungicides and biocontrol agents should be used to control Ramularia leaf spot on cotton. (C) 2016 Elsevier Ltd. All rights reserved.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Univ Estadual Paulista, FCA Campus Botucatu, BR-18603970 Botucatu, SP, BrazilEmbrapa Cotton, CP 174, BR-58428095 Campina Grande, PB, BrazilEmbrapa Environm, CP 69, BR-13820000 Jaguariuna, SP, BrazilUniv Estadual Paulista, FCA Campus Botucatu, BR-18603970 Botucatu, SP, BrazilElsevier B.V.Universidade Estadual Paulista (Unesp)Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA)Silva, Juliano Cesar da [UNESP]Suassuna, Nelson DiasBettiol, Wagner2018-11-26T15:38:41Z2018-11-26T15:38:41Z2017-04-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article28-32application/pdfhttp://dx.doi.org/10.1016/j.cropro.2016.12.006Crop Protection. Oxford: Elsevier Sci Ltd, v. 94, p. 28-32, 2017.0261-2194http://hdl.handle.net/11449/15938110.1016/j.cropro.2016.12.006WOS:000393719900004WOS000393719900004.pdfWeb of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengCrop Protection0,820info:eu-repo/semantics/openAccess2023-11-24T06:14:54Zoai:repositorio.unesp.br:11449/159381Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T18:35:45.932591Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Management of Ramularia leaf spot on cotton using integrated control with genotypes, a fungicide and Trichoderma asperellum
title Management of Ramularia leaf spot on cotton using integrated control with genotypes, a fungicide and Trichoderma asperellum
spellingShingle Management of Ramularia leaf spot on cotton using integrated control with genotypes, a fungicide and Trichoderma asperellum
Silva, Juliano Cesar da [UNESP]
Cotton varieties
Gossypium hirsutum
Ramularia areola
Ramularia leaf spot
Biological control
title_short Management of Ramularia leaf spot on cotton using integrated control with genotypes, a fungicide and Trichoderma asperellum
title_full Management of Ramularia leaf spot on cotton using integrated control with genotypes, a fungicide and Trichoderma asperellum
title_fullStr Management of Ramularia leaf spot on cotton using integrated control with genotypes, a fungicide and Trichoderma asperellum
title_full_unstemmed Management of Ramularia leaf spot on cotton using integrated control with genotypes, a fungicide and Trichoderma asperellum
title_sort Management of Ramularia leaf spot on cotton using integrated control with genotypes, a fungicide and Trichoderma asperellum
author Silva, Juliano Cesar da [UNESP]
author_facet Silva, Juliano Cesar da [UNESP]
Suassuna, Nelson Dias
Bettiol, Wagner
author_role author
author2 Suassuna, Nelson Dias
Bettiol, Wagner
author2_role author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA)
dc.contributor.author.fl_str_mv Silva, Juliano Cesar da [UNESP]
Suassuna, Nelson Dias
Bettiol, Wagner
dc.subject.por.fl_str_mv Cotton varieties
Gossypium hirsutum
Ramularia areola
Ramularia leaf spot
Biological control
topic Cotton varieties
Gossypium hirsutum
Ramularia areola
Ramularia leaf spot
Biological control
description Ramularia leaf spot, caused by Ramularia areola, is responsible for premature defoliation of cotton, resulting in potential reductions in yield. The objective of this study was to evaluate integrated control using genotypes, a fungicide and Trichoderma asperellum to manage Ramularia leaf spot on cotton. In the greenhouse, the resistance of eighteen genotypes was evaluated with two isolates of R. areola (IMA 244 and IMA 237). In field, the severity of Ramularia leaf spot was evaluated on cotton genotypes CNPA MT 2009-1381, CNPA GO 2007-419, BRS 293, BRS 372, CNPA GO 2008-1265 and FMT 701 treated or untreated with a fungicide in Primavera do Leste, MT, Correntina, BA, and Santa Helena de Goias, GO, during the 2011-2012 season. The varieties BRS 293 and BRS 372 were sprayed with a fungicide or Trichoderma in Sapezal, MT, during the 2012-2013 season, and the disease severity and fiber yield were evaluated. Significant interactions were detected between Ramularia isolates and cotton genotypes; the lowest disease severity was observed with IMA CD 05-8276 and CNPA GO 2007-419 genotypes. In the field tests, the lowest disease severity was with variety BRS 372 and the highest was with BRS 293, when grown in two different regions. The chemical fungicide and T. asperellum both reduced the disease severity in cotton varieties BRS 372 and BRS 293; however, yields were not significantly affected. In conclusion, an integrated strategy with the management tools of resistant varieties, fungicides and biocontrol agents should be used to control Ramularia leaf spot on cotton. (C) 2016 Elsevier Ltd. All rights reserved.
publishDate 2017
dc.date.none.fl_str_mv 2017-04-01
2018-11-26T15:38:41Z
2018-11-26T15:38:41Z
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/10.1016/j.cropro.2016.12.006
Crop Protection. Oxford: Elsevier Sci Ltd, v. 94, p. 28-32, 2017.
0261-2194
http://hdl.handle.net/11449/159381
10.1016/j.cropro.2016.12.006
WOS:000393719900004
WOS000393719900004.pdf
url http://dx.doi.org/10.1016/j.cropro.2016.12.006
http://hdl.handle.net/11449/159381
identifier_str_mv Crop Protection. Oxford: Elsevier Sci Ltd, v. 94, p. 28-32, 2017.
0261-2194
10.1016/j.cropro.2016.12.006
WOS:000393719900004
WOS000393719900004.pdf
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Crop Protection
0,820
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 28-32
application/pdf
dc.publisher.none.fl_str_mv Elsevier B.V.
publisher.none.fl_str_mv Elsevier B.V.
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
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