Decomposition of corn and soybean residues under field conditions and their role as inoculum source

Detalhes bibliográficos
Autor(a) principal: Reis,E.M.
Data de Publicação: 2011
Outros Autores: Baruffi,D., Remor,L., Zanatta,M.
Tipo de documento: Relatório
Idioma: eng
Título da fonte: Summa phytopathologica (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-54052011000100011
Resumo: Necrotrophic parasites of above-ground plant parts survive saprophytically, between growing seasons in host crop residues. In an experiment conducted under field conditions, the time required in months for corn and soybean residues to be completely decomposed was quantified. Residues were laid on the soil surface to simulate no-till farming. Crop debris of the two plant species collected on the harvesting day cut into pieces of 5.0cm-long and a 200g mass was added to nylon mesh bags. At monthly intervals, bags were taken to the laboratory for weighing. Corn residues were decomposed within 37.0 months and those of soybean, within 34.5 months. Hw main necrotrophic fungi diagnosed in the corn residues were Colletotrichum gramicola, Diplodia spp. and Gibberella zeae, and those in soybeans residues were Cercospora kikuchii, Colletotrichum spp, Glomerella sp. and Phomopsis spp. Thus, those periods shoulb be observed in crop rotation aimed at to eliminating contaminated residues and, consequently, the inoculum from the cultivated area.
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spelling Decomposition of corn and soybean residues under field conditions and their role as inoculum sourcenecrotrophic parasitescrop residuestime of decompositionNecrotrophic parasites of above-ground plant parts survive saprophytically, between growing seasons in host crop residues. In an experiment conducted under field conditions, the time required in months for corn and soybean residues to be completely decomposed was quantified. Residues were laid on the soil surface to simulate no-till farming. Crop debris of the two plant species collected on the harvesting day cut into pieces of 5.0cm-long and a 200g mass was added to nylon mesh bags. At monthly intervals, bags were taken to the laboratory for weighing. Corn residues were decomposed within 37.0 months and those of soybean, within 34.5 months. Hw main necrotrophic fungi diagnosed in the corn residues were Colletotrichum gramicola, Diplodia spp. and Gibberella zeae, and those in soybeans residues were Cercospora kikuchii, Colletotrichum spp, Glomerella sp. and Phomopsis spp. Thus, those periods shoulb be observed in crop rotation aimed at to eliminating contaminated residues and, consequently, the inoculum from the cultivated area.Grupo Paulista de Fitopatologia2011-03-01info:eu-repo/semantics/reportinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-54052011000100011Summa Phytopathologica v.37 n.1 2011reponame:Summa phytopathologica (Online)instname:Grupo Paulista de Fitopatologiainstacron:GPF10.1590/S0100-54052011000100011info:eu-repo/semantics/openAccessReis,E.M.Baruffi,D.Remor,L.Zanatta,M.eng2011-04-14T00:00:00Zoai:scielo:S0100-54052011000100011Revistahttp://www.scielo.br/sphttps://old.scielo.br/oai/scielo-oai.phpsumma@fca.unesp.br1980-54540100-5405opendoar:2011-04-14T00:00Summa phytopathologica (Online) - Grupo Paulista de Fitopatologiafalse
dc.title.none.fl_str_mv Decomposition of corn and soybean residues under field conditions and their role as inoculum source
title Decomposition of corn and soybean residues under field conditions and their role as inoculum source
spellingShingle Decomposition of corn and soybean residues under field conditions and their role as inoculum source
Reis,E.M.
necrotrophic parasites
crop residues
time of decomposition
title_short Decomposition of corn and soybean residues under field conditions and their role as inoculum source
title_full Decomposition of corn and soybean residues under field conditions and their role as inoculum source
title_fullStr Decomposition of corn and soybean residues under field conditions and their role as inoculum source
title_full_unstemmed Decomposition of corn and soybean residues under field conditions and their role as inoculum source
title_sort Decomposition of corn and soybean residues under field conditions and their role as inoculum source
author Reis,E.M.
author_facet Reis,E.M.
Baruffi,D.
Remor,L.
Zanatta,M.
author_role author
author2 Baruffi,D.
Remor,L.
Zanatta,M.
author2_role author
author
author
dc.contributor.author.fl_str_mv Reis,E.M.
Baruffi,D.
Remor,L.
Zanatta,M.
dc.subject.por.fl_str_mv necrotrophic parasites
crop residues
time of decomposition
topic necrotrophic parasites
crop residues
time of decomposition
description Necrotrophic parasites of above-ground plant parts survive saprophytically, between growing seasons in host crop residues. In an experiment conducted under field conditions, the time required in months for corn and soybean residues to be completely decomposed was quantified. Residues were laid on the soil surface to simulate no-till farming. Crop debris of the two plant species collected on the harvesting day cut into pieces of 5.0cm-long and a 200g mass was added to nylon mesh bags. At monthly intervals, bags were taken to the laboratory for weighing. Corn residues were decomposed within 37.0 months and those of soybean, within 34.5 months. Hw main necrotrophic fungi diagnosed in the corn residues were Colletotrichum gramicola, Diplodia spp. and Gibberella zeae, and those in soybeans residues were Cercospora kikuchii, Colletotrichum spp, Glomerella sp. and Phomopsis spp. Thus, those periods shoulb be observed in crop rotation aimed at to eliminating contaminated residues and, consequently, the inoculum from the cultivated area.
publishDate 2011
dc.date.none.fl_str_mv 2011-03-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/report
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format report
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-54052011000100011
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-54052011000100011
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0100-54052011000100011
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Grupo Paulista de Fitopatologia
publisher.none.fl_str_mv Grupo Paulista de Fitopatologia
dc.source.none.fl_str_mv Summa Phytopathologica v.37 n.1 2011
reponame:Summa phytopathologica (Online)
instname:Grupo Paulista de Fitopatologia
instacron:GPF
instname_str Grupo Paulista de Fitopatologia
instacron_str GPF
institution GPF
reponame_str Summa phytopathologica (Online)
collection Summa phytopathologica (Online)
repository.name.fl_str_mv Summa phytopathologica (Online) - Grupo Paulista de Fitopatologia
repository.mail.fl_str_mv summa@fca.unesp.br
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