Spatial distribution of Pratylenchus brachyurus in a soybean area of eastern Maranhao, Brazil
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.5039/agraria.v14i1a5627 http://hdl.handle.net/11449/197545 |
Resumo: | The root-lesion nematode, Pratylenchus brachyurus, is native to the Brazilian Cerrado region. Although soybean is not a natural host of this nematode, its advance on Cerrado areas has made this species become an important pathogen for the crop. This study aimed to assess the spatial distribution of P. brachyurus and its influence on soybean crop productivity in eastern Maranhao. For this, a sampling was conducted in 142 georeferenced points distributed in an area of 180 x 180 m. Plant and soil samples were collected, being the nematodes extracted and counted. Spatial patterns were estimated using geostatistical analysis. Anisotropic exponential models were adjusted for all studied variables with higher ranges in the direction of soil tillage and planting (135 degrees). The increase in nematode population, as well as its spatial pattern, was related to the presence of roots of the host plant in the soil. The direction of soil tillage and planting influenced the distribution of nematodes in the area, being the main controlling factor of their spatial patterns. |
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Spatial distribution of Pratylenchus brachyurus in a soybean area of eastern Maranhao, BrazilanisotropygeostatisticsnematodesThe root-lesion nematode, Pratylenchus brachyurus, is native to the Brazilian Cerrado region. Although soybean is not a natural host of this nematode, its advance on Cerrado areas has made this species become an important pathogen for the crop. This study aimed to assess the spatial distribution of P. brachyurus and its influence on soybean crop productivity in eastern Maranhao. For this, a sampling was conducted in 142 georeferenced points distributed in an area of 180 x 180 m. Plant and soil samples were collected, being the nematodes extracted and counted. Spatial patterns were estimated using geostatistical analysis. Anisotropic exponential models were adjusted for all studied variables with higher ranges in the direction of soil tillage and planting (135 degrees). The increase in nematode population, as well as its spatial pattern, was related to the presence of roots of the host plant in the soil. The direction of soil tillage and planting influenced the distribution of nematodes in the area, being the main controlling factor of their spatial patterns.Univ Fed Maranhao, Chapadinha, MA, BrazilUniv Marilia, Ctr Ciencias Agr, Marilia, SP, BrazilCtr Nacl Pesquisa Energia & Mat, Lab Nacl Ciencia & Tecnol Bioetanol, Campinas, SP, BrazilUniv Fed Rural Amazonia, Capanema, PA, BrazilUniv Estadual Paulista, Fac Ciencias Agr & Vet, Jaboticabal, SP, BrazilUniv Estadual Paulista, Fac Ciencias Agr & Vet, Jaboticabal, SP, BrazilUniv Federal Rural PernambucoUniv Fed MaranhaoUniv MariliaCtr Nacl Pesquisa Energia & MatUniv Fed Rural AmazoniaUniversidade Estadual Paulista (Unesp)Brito Freitas, Jose RobertoTeixeira, Daniel De BortoliMoitinho, Mara ReginaSilva Junior, Joao Fernandes daSiqueira, Diego Silva [UNESP]Figueiredo Barbosa, Bruno Flavio [UNESP]Martins Soares, Pedro Luiz [UNESP]Pereira, Gener Tadeu [UNESP]2020-12-11T03:11:59Z2020-12-11T03:11:59Z2019-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article6http://dx.doi.org/10.5039/agraria.v14i1a5627Revista Brasileira De Ciencias Agrarias-agraria. Recife Pe: Univ Federal Rural Pernambuco, v. 14, n. 1, 6 p., 2019.1981-1160http://hdl.handle.net/11449/19754510.5039/agraria.v14i1a5627WOS:000495660000027Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporRevista Brasileira De Ciencias Agrarias-agrariainfo:eu-repo/semantics/openAccess2024-06-06T13:43:45Zoai:repositorio.unesp.br:11449/197545Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-06-06T13:43:45Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Spatial distribution of Pratylenchus brachyurus in a soybean area of eastern Maranhao, Brazil |
title |
Spatial distribution of Pratylenchus brachyurus in a soybean area of eastern Maranhao, Brazil |
spellingShingle |
Spatial distribution of Pratylenchus brachyurus in a soybean area of eastern Maranhao, Brazil Brito Freitas, Jose Roberto anisotropy geostatistics nematodes |
title_short |
Spatial distribution of Pratylenchus brachyurus in a soybean area of eastern Maranhao, Brazil |
title_full |
Spatial distribution of Pratylenchus brachyurus in a soybean area of eastern Maranhao, Brazil |
title_fullStr |
Spatial distribution of Pratylenchus brachyurus in a soybean area of eastern Maranhao, Brazil |
title_full_unstemmed |
Spatial distribution of Pratylenchus brachyurus in a soybean area of eastern Maranhao, Brazil |
title_sort |
Spatial distribution of Pratylenchus brachyurus in a soybean area of eastern Maranhao, Brazil |
author |
Brito Freitas, Jose Roberto |
author_facet |
Brito Freitas, Jose Roberto Teixeira, Daniel De Bortoli Moitinho, Mara Regina Silva Junior, Joao Fernandes da Siqueira, Diego Silva [UNESP] Figueiredo Barbosa, Bruno Flavio [UNESP] Martins Soares, Pedro Luiz [UNESP] Pereira, Gener Tadeu [UNESP] |
author_role |
author |
author2 |
Teixeira, Daniel De Bortoli Moitinho, Mara Regina Silva Junior, Joao Fernandes da Siqueira, Diego Silva [UNESP] Figueiredo Barbosa, Bruno Flavio [UNESP] Martins Soares, Pedro Luiz [UNESP] Pereira, Gener Tadeu [UNESP] |
author2_role |
author author author author author author author |
dc.contributor.none.fl_str_mv |
Univ Fed Maranhao Univ Marilia Ctr Nacl Pesquisa Energia & Mat Univ Fed Rural Amazonia Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Brito Freitas, Jose Roberto Teixeira, Daniel De Bortoli Moitinho, Mara Regina Silva Junior, Joao Fernandes da Siqueira, Diego Silva [UNESP] Figueiredo Barbosa, Bruno Flavio [UNESP] Martins Soares, Pedro Luiz [UNESP] Pereira, Gener Tadeu [UNESP] |
dc.subject.por.fl_str_mv |
anisotropy geostatistics nematodes |
topic |
anisotropy geostatistics nematodes |
description |
The root-lesion nematode, Pratylenchus brachyurus, is native to the Brazilian Cerrado region. Although soybean is not a natural host of this nematode, its advance on Cerrado areas has made this species become an important pathogen for the crop. This study aimed to assess the spatial distribution of P. brachyurus and its influence on soybean crop productivity in eastern Maranhao. For this, a sampling was conducted in 142 georeferenced points distributed in an area of 180 x 180 m. Plant and soil samples were collected, being the nematodes extracted and counted. Spatial patterns were estimated using geostatistical analysis. Anisotropic exponential models were adjusted for all studied variables with higher ranges in the direction of soil tillage and planting (135 degrees). The increase in nematode population, as well as its spatial pattern, was related to the presence of roots of the host plant in the soil. The direction of soil tillage and planting influenced the distribution of nematodes in the area, being the main controlling factor of their spatial patterns. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-01-01 2020-12-11T03:11:59Z 2020-12-11T03:11:59Z |
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/10.5039/agraria.v14i1a5627 Revista Brasileira De Ciencias Agrarias-agraria. Recife Pe: Univ Federal Rural Pernambuco, v. 14, n. 1, 6 p., 2019. 1981-1160 http://hdl.handle.net/11449/197545 10.5039/agraria.v14i1a5627 WOS:000495660000027 |
url |
http://dx.doi.org/10.5039/agraria.v14i1a5627 http://hdl.handle.net/11449/197545 |
identifier_str_mv |
Revista Brasileira De Ciencias Agrarias-agraria. Recife Pe: Univ Federal Rural Pernambuco, v. 14, n. 1, 6 p., 2019. 1981-1160 10.5039/agraria.v14i1a5627 WOS:000495660000027 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
Revista Brasileira De Ciencias Agrarias-agraria |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
6 |
dc.publisher.none.fl_str_mv |
Univ Federal Rural Pernambuco |
publisher.none.fl_str_mv |
Univ Federal Rural Pernambuco |
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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1803045530312376320 |