Effects of soil incorporation of sicklepod (senna obtusifolia) seeds colonized of alternaria cassiae on the control this weed

Detalhes bibliográficos
Autor(a) principal: De Simoni, Fernanda
Data de Publicação: 2006
Outros Autores: Pitelli, Robinson Luiz Campos Machado [UNESP], Pitelli, Robinson Antonio [UNESP]
Tipo de documento: Artigo
Idioma: por
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://hdl.handle.net/11449/231919
Resumo: In the last decade, the excessive use of chemical control resulted in changes in the weed communities, which led to strong shifting in their population and finally in resistance to several herbicides. This is a very good opportunity to use biological management as a complementary method to control the selected weeds. Sicklepod seeds colonized by Alternaria cassiae were amended to the soil to control Senna obtusifolia plants. Two experiments were conducted under greenhouse conditions, where the colonized seeds (inoculum) were applied to the soil by dispersal over its surface and incorporation in the 2-3 cm layer. After fungal application, S. obtusifolia seeds previously scarified with sulfuric acid were sown in pots. The experimental design was the completely randomized with four replications. A factorial arrangement of treatments was used and the variables were: a) two granulations of inoculum (whole and chopped colonized seeds); b) four inoculum concentrations (10, 6.5, 3.3, and 1.7 ton/ha); c) control plot without any inoculum incorporation. The evaluated parameter were counting of the number of emerged plants and weighing of dry matter accumulation in the aerial and roots tissues of the reminiscent plants. In both trials, there was a tendency to reduce the number of reminiscent plants and of the dry matter accumulation at aerial parts, as the amount of inoculum was increased. There were not important differences between the inoculum constituted by whole or chopped seeds.
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spelling Effects of soil incorporation of sicklepod (senna obtusifolia) seeds colonized of alternaria cassiae on the control this weedEfeito da incorporação no solo de sementes de fedegoso (Senna obtusifolia) colonizadas por alternaria cassiae no controle desta planta infestanteAdditional weedAlternaria cassiaeBiological controlMicoherbicideSenna obtusifoliaIn the last decade, the excessive use of chemical control resulted in changes in the weed communities, which led to strong shifting in their population and finally in resistance to several herbicides. This is a very good opportunity to use biological management as a complementary method to control the selected weeds. Sicklepod seeds colonized by Alternaria cassiae were amended to the soil to control Senna obtusifolia plants. Two experiments were conducted under greenhouse conditions, where the colonized seeds (inoculum) were applied to the soil by dispersal over its surface and incorporation in the 2-3 cm layer. After fungal application, S. obtusifolia seeds previously scarified with sulfuric acid were sown in pots. The experimental design was the completely randomized with four replications. A factorial arrangement of treatments was used and the variables were: a) two granulations of inoculum (whole and chopped colonized seeds); b) four inoculum concentrations (10, 6.5, 3.3, and 1.7 ton/ha); c) control plot without any inoculum incorporation. The evaluated parameter were counting of the number of emerged plants and weighing of dry matter accumulation in the aerial and roots tissues of the reminiscent plants. In both trials, there was a tendency to reduce the number of reminiscent plants and of the dry matter accumulation at aerial parts, as the amount of inoculum was increased. There were not important differences between the inoculum constituted by whole or chopped seeds.Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Universidade Estadual PaulistaFitotecnia – Escola Superior de Agricultura “Luiz de Queiroz” Departamento de Produção Vegetal Universidade de São PauloFaculdade de Ciências Agronômicas Universidade Estadual Paulista, Câmpus de BotucatuFaculdade de Ciências Agrárias e Veterinárias Universidade Estadual Paulista, Câmpus de Jaboticabal, Via de acesso Prof. Paulo D. Castellane, s/nFaculdade de Ciências Agronômicas Universidade Estadual Paulista, Câmpus de BotucatuFaculdade de Ciências Agrárias e Veterinárias Universidade Estadual Paulista, Câmpus de Jaboticabal, Via de acesso Prof. Paulo D. Castellane, s/nUniversidade de São Paulo (USP)Universidade Estadual Paulista (UNESP)De Simoni, FernandaPitelli, Robinson Luiz Campos Machado [UNESP]Pitelli, Robinson Antonio [UNESP]2022-04-29T08:48:12Z2022-04-29T08:48:12Z2006-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article367-372Summa Phytopathologica, v. 32, n. 4, p. 367-372, 2006.0100-5405http://hdl.handle.net/11449/2319192-s2.0-77952666452Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporSumma Phytopathologicainfo:eu-repo/semantics/openAccess2024-06-06T13:04:56Zoai:repositorio.unesp.br:11449/231919Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T19:02:54.694420Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Effects of soil incorporation of sicklepod (senna obtusifolia) seeds colonized of alternaria cassiae on the control this weed
Efeito da incorporação no solo de sementes de fedegoso (Senna obtusifolia) colonizadas por alternaria cassiae no controle desta planta infestante
title Effects of soil incorporation of sicklepod (senna obtusifolia) seeds colonized of alternaria cassiae on the control this weed
spellingShingle Effects of soil incorporation of sicklepod (senna obtusifolia) seeds colonized of alternaria cassiae on the control this weed
De Simoni, Fernanda
Additional weed
Alternaria cassiae
Biological control
Micoherbicide
Senna obtusifolia
title_short Effects of soil incorporation of sicklepod (senna obtusifolia) seeds colonized of alternaria cassiae on the control this weed
title_full Effects of soil incorporation of sicklepod (senna obtusifolia) seeds colonized of alternaria cassiae on the control this weed
title_fullStr Effects of soil incorporation of sicklepod (senna obtusifolia) seeds colonized of alternaria cassiae on the control this weed
title_full_unstemmed Effects of soil incorporation of sicklepod (senna obtusifolia) seeds colonized of alternaria cassiae on the control this weed
title_sort Effects of soil incorporation of sicklepod (senna obtusifolia) seeds colonized of alternaria cassiae on the control this weed
author De Simoni, Fernanda
author_facet De Simoni, Fernanda
Pitelli, Robinson Luiz Campos Machado [UNESP]
Pitelli, Robinson Antonio [UNESP]
author_role author
author2 Pitelli, Robinson Luiz Campos Machado [UNESP]
Pitelli, Robinson Antonio [UNESP]
author2_role author
author
dc.contributor.none.fl_str_mv Universidade de São Paulo (USP)
Universidade Estadual Paulista (UNESP)
dc.contributor.author.fl_str_mv De Simoni, Fernanda
Pitelli, Robinson Luiz Campos Machado [UNESP]
Pitelli, Robinson Antonio [UNESP]
dc.subject.por.fl_str_mv Additional weed
Alternaria cassiae
Biological control
Micoherbicide
Senna obtusifolia
topic Additional weed
Alternaria cassiae
Biological control
Micoherbicide
Senna obtusifolia
description In the last decade, the excessive use of chemical control resulted in changes in the weed communities, which led to strong shifting in their population and finally in resistance to several herbicides. This is a very good opportunity to use biological management as a complementary method to control the selected weeds. Sicklepod seeds colonized by Alternaria cassiae were amended to the soil to control Senna obtusifolia plants. Two experiments were conducted under greenhouse conditions, where the colonized seeds (inoculum) were applied to the soil by dispersal over its surface and incorporation in the 2-3 cm layer. After fungal application, S. obtusifolia seeds previously scarified with sulfuric acid were sown in pots. The experimental design was the completely randomized with four replications. A factorial arrangement of treatments was used and the variables were: a) two granulations of inoculum (whole and chopped colonized seeds); b) four inoculum concentrations (10, 6.5, 3.3, and 1.7 ton/ha); c) control plot without any inoculum incorporation. The evaluated parameter were counting of the number of emerged plants and weighing of dry matter accumulation in the aerial and roots tissues of the reminiscent plants. In both trials, there was a tendency to reduce the number of reminiscent plants and of the dry matter accumulation at aerial parts, as the amount of inoculum was increased. There were not important differences between the inoculum constituted by whole or chopped seeds.
publishDate 2006
dc.date.none.fl_str_mv 2006-01-01
2022-04-29T08:48:12Z
2022-04-29T08:48:12Z
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 Summa Phytopathologica, v. 32, n. 4, p. 367-372, 2006.
0100-5405
http://hdl.handle.net/11449/231919
2-s2.0-77952666452
identifier_str_mv Summa Phytopathologica, v. 32, n. 4, p. 367-372, 2006.
0100-5405
2-s2.0-77952666452
url http://hdl.handle.net/11449/231919
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv Summa Phytopathologica
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 367-372
dc.source.none.fl_str_mv Scopus
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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