Nematodes associated with grain sorghum in the Federal District, Brazil
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Pesquisa Agropecuária Brasileira (Online) |
Texto Completo: | https://seer.sct.embrapa.br/index.php/pab/article/view/15149 |
Resumo: | During May 1981 a nematode survey was conducted in an experimental area of Centro de Pesquisa Agropecuária dos Cerrados (CPAC), at Planaltina, Federal District, Brazil, where 25 genotypes of grain sorghum (Sorghum bicolor (L.) Moench were being agronomically evaluated. Four composite soil and root samples were collected from each genotype after harvest The nematodes were isolated from 100 g of soil and 10 g of roots using modified Coolen's method. Nine species of stylet bearing nematodes in their decreasing frequency of occurrence in samples were: Aphelenchoides sp. (100%), Ditylenchus sp. (100%), Tylenchus sp. (95%), Pratylenchus brachyurus (93%), Aphelenchus avenae (90%), Helicotylenchus dihystera (68%), Meloidogyne javanica (37%), Paratrichodorus minor (13%) and Criconemella ornata (4%). The frequency of nematode occurrence between genotypes were: P. brachyurus, Helicotylenchus dihystera, Aphelenchoides sp., A. avenae, Ditylenchus sp., Tylenchus sp. (100%), M. javanica (92%), P. minor (11%) and C. ornata (4%). In general, the average nematode densities per sample were low, exception made Ditylenchus sp. and saprofitic nematodes, which were 99 and 288 respectively. Densities of C. ornata and P. minor were below one nematode per sample. |
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Nematodes associated with grain sorghum in the Federal District, BrazilNematóides associados com sorgo granífero no Distrito Federalmodified Coolen's method; nematode density; saprofitic nematodes; genotypesmétodo modificado de Coolen; densidade de nematoides; nematóides saprofíticos; genótiposDuring May 1981 a nematode survey was conducted in an experimental area of Centro de Pesquisa Agropecuária dos Cerrados (CPAC), at Planaltina, Federal District, Brazil, where 25 genotypes of grain sorghum (Sorghum bicolor (L.) Moench were being agronomically evaluated. Four composite soil and root samples were collected from each genotype after harvest The nematodes were isolated from 100 g of soil and 10 g of roots using modified Coolen's method. Nine species of stylet bearing nematodes in their decreasing frequency of occurrence in samples were: Aphelenchoides sp. (100%), Ditylenchus sp. (100%), Tylenchus sp. (95%), Pratylenchus brachyurus (93%), Aphelenchus avenae (90%), Helicotylenchus dihystera (68%), Meloidogyne javanica (37%), Paratrichodorus minor (13%) and Criconemella ornata (4%). The frequency of nematode occurrence between genotypes were: P. brachyurus, Helicotylenchus dihystera, Aphelenchoides sp., A. avenae, Ditylenchus sp., Tylenchus sp. (100%), M. javanica (92%), P. minor (11%) and C. ornata (4%). In general, the average nematode densities per sample were low, exception made Ditylenchus sp. and saprofitic nematodes, which were 99 and 288 respectively. Densities of C. ornata and P. minor were below one nematode per sample.Em maio de 1981, foi realizado um levantamento de nematóides em uma área experimental do Centro de Pesquisa Agropecuária dos Cerrados (CPAC), Planaltina, DF; cultivada com 25 genótipos de sorgo granífero (Sorghum bicolor (L.) Moench). Quatro amostras de solo e raíz foram coletadas para cada genótipo, logo após a colheita. Os nematóides foram isolados de 100 g de solo e 10 g de raízes pelo método modificado de Coolen. Nove espécies de nematóides possuidores de estiletes foram observadas em uma frequência de distribuição decrescente: Aphelenchoides sp. (100%), Ditylenchus sp. (100%), Tylenchus sp. (95%), Pratylenchus brachyurus (93%), Aphelenchus avenae (90%), Helicotylenchus dihystera (68%), Meloidogyne javanica (37%), Paratrichodorus minor (13%) e Criconemella ornata (4%). A frequência de ocorrência de nematóides entre genótipos foi: P. brachyurus, Helicotylenchus dihystera, Aphelenchoides sp., A. avenae, Ditylenchus sp.. Tylenchus sp. (100%), M. javanica (92%), P. minor (11%) e C. ornata (4%). De modo geral, a densidade média de nematóides por amostra foi baixa, com exceção de Ditylenchus sp. e alguns nematóides saprofíticos, que foram de 99 a 288, respectivamente. As densidades de C. ornata e P. minar foram menos que um nematóide por amostra.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraSharma, Ravi DattMedeiros, Antônio Carlos de S.2014-04-16info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/15149Pesquisa Agropecuaria Brasileira; v.18, n.1, jan. 1983; 49-53Pesquisa Agropecuária Brasileira; v.18, n.1, jan. 1983; 49-531678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/15149/8931info:eu-repo/semantics/openAccess2014-04-16T16:40:55Zoai:ojs.seer.sct.embrapa.br:article/15149Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-04-16T16:40:55Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Nematodes associated with grain sorghum in the Federal District, Brazil Nematóides associados com sorgo granífero no Distrito Federal |
title |
Nematodes associated with grain sorghum in the Federal District, Brazil |
spellingShingle |
Nematodes associated with grain sorghum in the Federal District, Brazil Sharma, Ravi Datt modified Coolen's method; nematode density; saprofitic nematodes; genotypes método modificado de Coolen; densidade de nematoides; nematóides saprofíticos; genótipos |
title_short |
Nematodes associated with grain sorghum in the Federal District, Brazil |
title_full |
Nematodes associated with grain sorghum in the Federal District, Brazil |
title_fullStr |
Nematodes associated with grain sorghum in the Federal District, Brazil |
title_full_unstemmed |
Nematodes associated with grain sorghum in the Federal District, Brazil |
title_sort |
Nematodes associated with grain sorghum in the Federal District, Brazil |
author |
Sharma, Ravi Datt |
author_facet |
Sharma, Ravi Datt Medeiros, Antônio Carlos de S. |
author_role |
author |
author2 |
Medeiros, Antônio Carlos de S. |
author2_role |
author |
dc.contributor.none.fl_str_mv |
|
dc.contributor.author.fl_str_mv |
Sharma, Ravi Datt Medeiros, Antônio Carlos de S. |
dc.subject.por.fl_str_mv |
modified Coolen's method; nematode density; saprofitic nematodes; genotypes método modificado de Coolen; densidade de nematoides; nematóides saprofíticos; genótipos |
topic |
modified Coolen's method; nematode density; saprofitic nematodes; genotypes método modificado de Coolen; densidade de nematoides; nematóides saprofíticos; genótipos |
description |
During May 1981 a nematode survey was conducted in an experimental area of Centro de Pesquisa Agropecuária dos Cerrados (CPAC), at Planaltina, Federal District, Brazil, where 25 genotypes of grain sorghum (Sorghum bicolor (L.) Moench were being agronomically evaluated. Four composite soil and root samples were collected from each genotype after harvest The nematodes were isolated from 100 g of soil and 10 g of roots using modified Coolen's method. Nine species of stylet bearing nematodes in their decreasing frequency of occurrence in samples were: Aphelenchoides sp. (100%), Ditylenchus sp. (100%), Tylenchus sp. (95%), Pratylenchus brachyurus (93%), Aphelenchus avenae (90%), Helicotylenchus dihystera (68%), Meloidogyne javanica (37%), Paratrichodorus minor (13%) and Criconemella ornata (4%). The frequency of nematode occurrence between genotypes were: P. brachyurus, Helicotylenchus dihystera, Aphelenchoides sp., A. avenae, Ditylenchus sp., Tylenchus sp. (100%), M. javanica (92%), P. minor (11%) and C. ornata (4%). In general, the average nematode densities per sample were low, exception made Ditylenchus sp. and saprofitic nematodes, which were 99 and 288 respectively. Densities of C. ornata and P. minor were below one nematode per sample. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-04-16 |
dc.type.none.fl_str_mv |
|
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://seer.sct.embrapa.br/index.php/pab/article/view/15149 |
url |
https://seer.sct.embrapa.br/index.php/pab/article/view/15149 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://seer.sct.embrapa.br/index.php/pab/article/view/15149/8931 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira Pesquisa Agropecuária Brasileira |
publisher.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira Pesquisa Agropecuária Brasileira |
dc.source.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira; v.18, n.1, jan. 1983; 49-53 Pesquisa Agropecuária Brasileira; v.18, n.1, jan. 1983; 49-53 1678-3921 0100-104x reponame:Pesquisa Agropecuária Brasileira (Online) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
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EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Pesquisa Agropecuária Brasileira (Online) |
collection |
Pesquisa Agropecuária Brasileira (Online) |
repository.name.fl_str_mv |
Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
pab@sct.embrapa.br || sct.pab@embrapa.br |
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1793416670331535360 |