Mycorrhizal colonization, spore density and diversity of arbuscular mycorrhizal fungi in Cerrado soil under no-till and conventional tillage systems
Autor(a) principal: | |
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Data de Publicação: | 2012 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Semina. Ciências Agrárias (Online) |
Texto Completo: | https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/5707 |
Resumo: | The quest for sustainability in agricultural production through conservation management practices such as no-tillage, has favored the biochemical processes of soil, such as soil arbuscular mycorrhizal fungi (AMFs), which promote a significant increase in specific surface absorption of the root system of plants. The objective of this study was to evaluate the root colonization, spore density and diversity of AMFs in rhizosphere of corn and soybean grown under no-tillage with different cover crops and compared an area conventional tillage and fallow, in Uberaba, state of Minas Gerais. The corn and soybeans were rotated with millet, crotalaria and brachiaria. The experimental design was randomized blocks, with split plots. The experiment was established in 2000, and in 2007 assessed the colonization (COL) and spore density (ESP) (0.0-0.05m and 0.05-0.10m). In the layer of 0.0-0.10m evaluated the diversity of AMFs. It was found that there was a strong effect of culture on COL and ESP. However, the effect of the covers and management was seen only in 0.0-0.05m. The roots of corn has a higher percentages of COL and ESP compared with soybeans, for the coverage Brachiaria and millet. The mycorrhizal colonization of soybean and maize in Cerrado area was up 80% for soybeans and up 95% for corn. Conventional tillage soil the lowest number of AMFs species in relation to the coverage of millet and Brachiaria in no-till corn and soybeans. The principal components analysis with some chemical, physical and biological factors of soil shows the separation of the areas assessed, and the biological component (COL and ESP) in the efficient separation of the areas under cultivation, for the conditions of this study. |
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Semina. Ciências Agrárias (Online) |
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Mycorrhizal colonization, spore density and diversity of arbuscular mycorrhizal fungi in Cerrado soil under no-till and conventional tillage systemsColonização micorrízica, densidade de esporos e diversidade de fungos micorrízicos arbusculares em solo de Cerrado sob plantio direto e convencionalNo-tillage systemCorn cultureSoybens cultureCover cropsIndicators of soil quality.Sistema plantio diretoCulturas do milho e da sojaPlantas de coberturaIndicadores de qualidade do solo.The quest for sustainability in agricultural production through conservation management practices such as no-tillage, has favored the biochemical processes of soil, such as soil arbuscular mycorrhizal fungi (AMFs), which promote a significant increase in specific surface absorption of the root system of plants. The objective of this study was to evaluate the root colonization, spore density and diversity of AMFs in rhizosphere of corn and soybean grown under no-tillage with different cover crops and compared an area conventional tillage and fallow, in Uberaba, state of Minas Gerais. The corn and soybeans were rotated with millet, crotalaria and brachiaria. The experimental design was randomized blocks, with split plots. The experiment was established in 2000, and in 2007 assessed the colonization (COL) and spore density (ESP) (0.0-0.05m and 0.05-0.10m). In the layer of 0.0-0.10m evaluated the diversity of AMFs. It was found that there was a strong effect of culture on COL and ESP. However, the effect of the covers and management was seen only in 0.0-0.05m. The roots of corn has a higher percentages of COL and ESP compared with soybeans, for the coverage Brachiaria and millet. The mycorrhizal colonization of soybean and maize in Cerrado area was up 80% for soybeans and up 95% for corn. Conventional tillage soil the lowest number of AMFs species in relation to the coverage of millet and Brachiaria in no-till corn and soybeans. The principal components analysis with some chemical, physical and biological factors of soil shows the separation of the areas assessed, and the biological component (COL and ESP) in the efficient separation of the areas under cultivation, for the conditions of this study. A busca da sustentabilidade na produção agrícola através de manejos conservacionistas, como o sistema plantio direto, tem favorecido os processos bioquímicos do solo como dos fungos micorrízicos arbusculares (FMAs), os quais promovem um aumento expressivo da superfície específica de absorção do sistema radicular das plantas. Sendo assim, o objetivo deste trabalho foi avaliar a colonização micorrízica, densidade de esporos e a diversidade de FMAs na rizosfera de milho e soja cultivados sob plantio direto com diferentes plantas de cobertura e comparadas a uma área de preparo convencional e pousio, em Uberaba, MG. As culturas de milho e soja foram rotacionadas com milheto, crotalária e braquiária. O delineamento experimental foi em blocos casualizados, com parcelas subdivididas. O experimento foi implantado em 2000 e, em 2007 avaliou-se a colonização radicular por FMAs (COL) e densidade de esporos no solo (ESP) nas profundidades de 0,0-0,05 m e 0,05-0,10 m, já a avaliação da diversidade de FMAs foi na profundidade de 0,0-0,10 m. Verificou-se que houve efeito significativo das culturas sobre COL e ESP. Entretanto, o efeito das coberturas e do manejo foi verificado apenas em 0,0-0,05 m. As raízes de milho apresentam maiores porcentagens de COL e ESP quando comparado com a soja, para as coberturas de braquiária e milheto. A colonização micorrízica da soja e do milho na área de Cerrados foi acima de 80% para soja e 95% para o milho. O sistema de preparo convencional do solo apresentou o menor número de espécies de FMAs em relação às coberturas de milheto e braquiária, em sistema plantio direto com milho e soja. A análise de componentes principais com algumas variáveis químicas, físicas e biológicas do solo evidencia a separação das áreas avaliadas, sendo as variáveis COL e ESP eficientes na separação das áreas em cultivo, para as condições do presente estudo.UEL2012-04-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/570710.5433/1679-0359.2012v33n1p115Semina: Ciências Agrárias; Vol. 33 No. 1 (2012); 115-130Semina: Ciências Agrárias; v. 33 n. 1 (2012); 115-1301679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELporhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/5707/10138Angelini, Guilherme Augusto RoblesLoss, ArcângeloPereira, Marcos GervasioTorres, José Luiz RodriguesSaggin Júnior, Orivaldo Joséinfo:eu-repo/semantics/openAccess2015-11-19T18:37:40Zoai:ojs.pkp.sfu.ca:article/5707Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2015-11-19T18:37:40Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false |
dc.title.none.fl_str_mv |
Mycorrhizal colonization, spore density and diversity of arbuscular mycorrhizal fungi in Cerrado soil under no-till and conventional tillage systems Colonização micorrízica, densidade de esporos e diversidade de fungos micorrízicos arbusculares em solo de Cerrado sob plantio direto e convencional |
title |
Mycorrhizal colonization, spore density and diversity of arbuscular mycorrhizal fungi in Cerrado soil under no-till and conventional tillage systems |
spellingShingle |
Mycorrhizal colonization, spore density and diversity of arbuscular mycorrhizal fungi in Cerrado soil under no-till and conventional tillage systems Angelini, Guilherme Augusto Robles No-tillage system Corn culture Soybens culture Cover crops Indicators of soil quality. Sistema plantio direto Culturas do milho e da soja Plantas de cobertura Indicadores de qualidade do solo. |
title_short |
Mycorrhizal colonization, spore density and diversity of arbuscular mycorrhizal fungi in Cerrado soil under no-till and conventional tillage systems |
title_full |
Mycorrhizal colonization, spore density and diversity of arbuscular mycorrhizal fungi in Cerrado soil under no-till and conventional tillage systems |
title_fullStr |
Mycorrhizal colonization, spore density and diversity of arbuscular mycorrhizal fungi in Cerrado soil under no-till and conventional tillage systems |
title_full_unstemmed |
Mycorrhizal colonization, spore density and diversity of arbuscular mycorrhizal fungi in Cerrado soil under no-till and conventional tillage systems |
title_sort |
Mycorrhizal colonization, spore density and diversity of arbuscular mycorrhizal fungi in Cerrado soil under no-till and conventional tillage systems |
author |
Angelini, Guilherme Augusto Robles |
author_facet |
Angelini, Guilherme Augusto Robles Loss, Arcângelo Pereira, Marcos Gervasio Torres, José Luiz Rodrigues Saggin Júnior, Orivaldo José |
author_role |
author |
author2 |
Loss, Arcângelo Pereira, Marcos Gervasio Torres, José Luiz Rodrigues Saggin Júnior, Orivaldo José |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Angelini, Guilherme Augusto Robles Loss, Arcângelo Pereira, Marcos Gervasio Torres, José Luiz Rodrigues Saggin Júnior, Orivaldo José |
dc.subject.por.fl_str_mv |
No-tillage system Corn culture Soybens culture Cover crops Indicators of soil quality. Sistema plantio direto Culturas do milho e da soja Plantas de cobertura Indicadores de qualidade do solo. |
topic |
No-tillage system Corn culture Soybens culture Cover crops Indicators of soil quality. Sistema plantio direto Culturas do milho e da soja Plantas de cobertura Indicadores de qualidade do solo. |
description |
The quest for sustainability in agricultural production through conservation management practices such as no-tillage, has favored the biochemical processes of soil, such as soil arbuscular mycorrhizal fungi (AMFs), which promote a significant increase in specific surface absorption of the root system of plants. The objective of this study was to evaluate the root colonization, spore density and diversity of AMFs in rhizosphere of corn and soybean grown under no-tillage with different cover crops and compared an area conventional tillage and fallow, in Uberaba, state of Minas Gerais. The corn and soybeans were rotated with millet, crotalaria and brachiaria. The experimental design was randomized blocks, with split plots. The experiment was established in 2000, and in 2007 assessed the colonization (COL) and spore density (ESP) (0.0-0.05m and 0.05-0.10m). In the layer of 0.0-0.10m evaluated the diversity of AMFs. It was found that there was a strong effect of culture on COL and ESP. However, the effect of the covers and management was seen only in 0.0-0.05m. The roots of corn has a higher percentages of COL and ESP compared with soybeans, for the coverage Brachiaria and millet. The mycorrhizal colonization of soybean and maize in Cerrado area was up 80% for soybeans and up 95% for corn. Conventional tillage soil the lowest number of AMFs species in relation to the coverage of millet and Brachiaria in no-till corn and soybeans. The principal components analysis with some chemical, physical and biological factors of soil shows the separation of the areas assessed, and the biological component (COL and ESP) in the efficient separation of the areas under cultivation, for the conditions of this study. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-04-05 |
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://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/5707 10.5433/1679-0359.2012v33n1p115 |
url |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/5707 |
identifier_str_mv |
10.5433/1679-0359.2012v33n1p115 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/5707/10138 |
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 |
UEL |
publisher.none.fl_str_mv |
UEL |
dc.source.none.fl_str_mv |
Semina: Ciências Agrárias; Vol. 33 No. 1 (2012); 115-130 Semina: Ciências Agrárias; v. 33 n. 1 (2012); 115-130 1679-0359 1676-546X reponame:Semina. Ciências Agrárias (Online) instname:Universidade Estadual de Londrina (UEL) instacron:UEL |
instname_str |
Universidade Estadual de Londrina (UEL) |
instacron_str |
UEL |
institution |
UEL |
reponame_str |
Semina. Ciências Agrárias (Online) |
collection |
Semina. Ciências Agrárias (Online) |
repository.name.fl_str_mv |
Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL) |
repository.mail.fl_str_mv |
semina.agrarias@uel.br |
_version_ |
1799306062843609088 |