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Registro Completo |
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Biblioteca(s): |
Embrapa Cerrados; Embrapa Florestas. |
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Data corrente: |
18/09/2008 |
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Data da última atualização: |
27/01/2009 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
VENDRAME, P. R. S.; MARCHÃO, R. L.; BRITO, O. R.; GUIMARÃES, M. de F.; BECQUER, T. |
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Afiliação: |
Pedro R. S. Vendrame, UEL; Robélio Leandro Marchão, CPAC; Osmar R. Brito; Maria de F. Guimarães; Thierry Becquer. |
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Título: |
Soil macrofauna under pastures in the brazilian cerrado region: the influence of mineralogy and chemical fertility. |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
In: INTERNATIONAL COLLOQUIUM ON SOIL ZOOLOGY, 15; INTERNATIONAL COLLOQUIUM ON APTERYGOTA, 12., 2008, Curitiba. Biodiversity, conservation and sustainabele management of soil animal: abstracts. Colombo: Embrapa Florestas. 1 CD-ROM. |
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Idioma: |
Inglês |
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Conteúdo: |
Various processes exercise influence on the soil macrofauna through intervention in the physical,
chemical or biological characteristics of the ecosystem. The aim of this study was to evaluate
the potential influence of different levels of chemical fertility associated to different contents of
kaolinite and gibbsite on the soil macrofauna under pastures in the Brazilian Cerrado region. In
this regard, a region to study was selected in the Federal District (near Brasília) and in the city of
Formosa, Goiás state. A chemical pre-analysis was carried out of the soils to determine the
exchangeable Ca and Mg as well as those of kaolinite and gibbsite through thermogravimetric
analysis (TGA) with the aim of calculating the ratio kaolinite / kaolinite+gibbsite (RKGb). These
two parameters (Ca + Mg and RKGb) allowed the choice of four groups of soils, which were:
Group I (Ca + Mg from 0.5 to 1.0 cmolc kg-1 and RKGb from 0.4 to 0.6); Group II (Ca + Mg from
0.5 to 1.0 cmolc kg-1 and RKGb from 0.8 to 1.0); Group III (Ca + Mg from 2.0 to 4.0 cmolc kg-1
and RKGb from 0.4 to 0.6) and Group IV (Ca + Mg from 2.0 to 4.0 cmolc kg-1 and RKGb from
0.8 to 1.0). Macrofauna was sampled following the TSBF method, collecting blocks of 25 × 25 ×
30 cm where, after manual collecting, all of the individuals were counted which afterwards were
identified as belonging to groups. The data were submitted to a principal component analysis
(PCA) with the aim of grouping the variables which came closest to explaining the behavior of
the macrofauna in the four soil groups selected. The groups identified in decreasing order of
total density are: Isoptera, Hymenoptera, Oligochaeta, Coleoptera, Diplopoda, Chilopoda,
Diptera, Hemiptera, Lepidoptera, Araneae, Homoptera, Symphyla, Scorpione e
Pseudoscorpione. The frequency of individuals in the litter is very low and represents less than
1% of the total; the greatest concentration of macrofauna in soils under pastures in the Cerrado
region occurs in the superficial layer 0-10 cm. The predominance of Isoptera is more accentuated
in the soils having low chemical fertility (low Ca + Mg) and there is a higher density of Oligochatea
(earthworms) in soils with high RKGb. MenosVarious processes exercise influence on the soil macrofauna through intervention in the physical,
chemical or biological characteristics of the ecosystem. The aim of this study was to evaluate
the potential influence of different levels of chemical fertility associated to different contents of
kaolinite and gibbsite on the soil macrofauna under pastures in the Brazilian Cerrado region. In
this regard, a region to study was selected in the Federal District (near Brasília) and in the city of
Formosa, Goiás state. A chemical pre-analysis was carried out of the soils to determine the
exchangeable Ca and Mg as well as those of kaolinite and gibbsite through thermogravimetric
analysis (TGA) with the aim of calculating the ratio kaolinite / kaolinite+gibbsite (RKGb). These
two parameters (Ca + Mg and RKGb) allowed the choice of four groups of soils, which were:
Group I (Ca + Mg from 0.5 to 1.0 cmolc kg-1 and RKGb from 0.4 to 0.6); Group II (Ca + Mg from
0.5 to 1.0 cmolc kg-1 and RKGb from 0.8 to 1.0); Group III (Ca + Mg from 2.0 to 4.0 cmolc kg-1
and RKGb from 0.4 to 0.6) and Group IV (Ca + Mg from 2.0 to 4.0 cmolc kg-1 and RKGb from
0.8 to 1.0). Macrofauna was sampled following the TSBF method, collecting blocks of 25 × 25 ×
30 cm where, after manual collecting, all of the individuals were counted which afterwards were
identified as belonging to groups. The data were submitted to a principal component analysis
(PCA) with the aim of grouping the variables which came closest to expl... Mostrar Tudo |
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Thesagro: |
Cerrado; Fauna Edáfica; Solo. |
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Categoria do assunto: |
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Marc: |
LEADER 02990naa a2200205 a 4500
001 1571476
005 2009-01-27
008 2008 bl uuuu u00u1 u #d
100 1 $aVENDRAME, P. R. S.
245 $aSoil macrofauna under pastures in the brazilian cerrado region$bthe influence of mineralogy and chemical fertility.
260 $c2008
520 $aVarious processes exercise influence on the soil macrofauna through intervention in the physical, chemical or biological characteristics of the ecosystem. The aim of this study was to evaluate the potential influence of different levels of chemical fertility associated to different contents of kaolinite and gibbsite on the soil macrofauna under pastures in the Brazilian Cerrado region. In this regard, a region to study was selected in the Federal District (near Brasília) and in the city of Formosa, Goiás state. A chemical pre-analysis was carried out of the soils to determine the exchangeable Ca and Mg as well as those of kaolinite and gibbsite through thermogravimetric analysis (TGA) with the aim of calculating the ratio kaolinite / kaolinite+gibbsite (RKGb). These two parameters (Ca + Mg and RKGb) allowed the choice of four groups of soils, which were: Group I (Ca + Mg from 0.5 to 1.0 cmolc kg-1 and RKGb from 0.4 to 0.6); Group II (Ca + Mg from 0.5 to 1.0 cmolc kg-1 and RKGb from 0.8 to 1.0); Group III (Ca + Mg from 2.0 to 4.0 cmolc kg-1 and RKGb from 0.4 to 0.6) and Group IV (Ca + Mg from 2.0 to 4.0 cmolc kg-1 and RKGb from 0.8 to 1.0). Macrofauna was sampled following the TSBF method, collecting blocks of 25 × 25 × 30 cm where, after manual collecting, all of the individuals were counted which afterwards were identified as belonging to groups. The data were submitted to a principal component analysis (PCA) with the aim of grouping the variables which came closest to explaining the behavior of the macrofauna in the four soil groups selected. The groups identified in decreasing order of total density are: Isoptera, Hymenoptera, Oligochaeta, Coleoptera, Diplopoda, Chilopoda, Diptera, Hemiptera, Lepidoptera, Araneae, Homoptera, Symphyla, Scorpione e Pseudoscorpione. The frequency of individuals in the litter is very low and represents less than 1% of the total; the greatest concentration of macrofauna in soils under pastures in the Cerrado region occurs in the superficial layer 0-10 cm. The predominance of Isoptera is more accentuated in the soils having low chemical fertility (low Ca + Mg) and there is a higher density of Oligochatea (earthworms) in soils with high RKGb.
650 $aCerrado
650 $aFauna Edáfica
650 $aSolo
700 1 $aMARCHÃO, R. L.
700 1 $aBRITO, O. R.
700 1 $aGUIMARÃES, M. de F.
700 1 $aBECQUER, T.
773 $tIn: INTERNATIONAL COLLOQUIUM ON SOIL ZOOLOGY, 15; INTERNATIONAL COLLOQUIUM ON APTERYGOTA, 12., 2008, Curitiba. Biodiversity, conservation and sustainabele management of soil animal: abstracts. Colombo: Embrapa Florestas. 1 CD-ROM.
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Registro original: |
Embrapa Cerrados (CPAC) |
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Origem |
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Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
21/02/2013 |
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Data da última atualização: |
21/02/2013 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
OLIVEIRA, J. S. F.; COSTA, R. C. da; NASCIMENTO, S. M. C. do; SANTOS, T. de P. F. dos; CARVALHO, E. de A. |
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Afiliação: |
JOYCE SOLANGE FERREIRA OLIVEIRA, UFRA; ROSEMARY CORREA DA COSTA, UFRA; SILVIA MARA COELHO DO NASCIMENTO, UFRA; THAISSA DE PAULA FARIAS DOS SANTOS, UFRA; EUDES DE ARRUDA CARVALHO, CPATU. |
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Título: |
Diversidade de hospedeiros de Pestalotiopsis sp. no estado do Pará. |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE RECURSOS GENÉTICOS, 2., 2012, Belém, PA. Anais... Brasília, DF: Sociedade Brasileira de Recursos Genéticos, 2012. |
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Descrição Física: |
1 CD-ROM. |
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Idioma: |
Português |
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Conteúdo: |
O fungo Pestalotiopsis sp. pode ser encontrado como saprófita, fitopatógeno e endofítico sendo considerado um fungo cosmopolita. Objetivou-se, com este trabalho, descrever a diversidade de hospedeiros de Pestalotiopsis sp. no Estado do Pará. Amostras de tecidos vegetais de palma de óleo (Elaeis sp.), cupuaçu (Theobroma grandiflorum), meracilina (Alternanthera dentata), coco (Cocos nucifera), mangueira (Mangifera indica), e mangostão (Garcinia mangostana) foram encaminhadas ao Laboratório de Fitopatologia da Embrapa Amazônia Oriental e isoladas pelo método indireto. Foi isolado o Pestalotiopsis sp. de todos hospedeiros estudados. O fungo foi classificado com base em características morfológicas da colônia e de conídios. Todos os isolados foram preservados para estudos posteriores. |
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Palavras-Chave: |
Cultivos amazônicos; Fitopatógeno; Fungos endofíticos. |
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Categoria do assunto: |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/76963/1/260.pdf
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Marc: |
LEADER 01500nam a2200205 a 4500
001 1950479
005 2013-02-21
008 2012 bl uuuu u00u1 u #d
100 1 $aOLIVEIRA, J. S. F.
245 $aDiversidade de hospedeiros de Pestalotiopsis sp. no estado do Pará.
260 $aIn: CONGRESSO BRASILEIRO DE RECURSOS GENÉTICOS, 2., 2012, Belém, PA. Anais... Brasília, DF: Sociedade Brasileira de Recursos Genéticos$c2012
300 $c1 CD-ROM.
520 $aO fungo Pestalotiopsis sp. pode ser encontrado como saprófita, fitopatógeno e endofítico sendo considerado um fungo cosmopolita. Objetivou-se, com este trabalho, descrever a diversidade de hospedeiros de Pestalotiopsis sp. no Estado do Pará. Amostras de tecidos vegetais de palma de óleo (Elaeis sp.), cupuaçu (Theobroma grandiflorum), meracilina (Alternanthera dentata), coco (Cocos nucifera), mangueira (Mangifera indica), e mangostão (Garcinia mangostana) foram encaminhadas ao Laboratório de Fitopatologia da Embrapa Amazônia Oriental e isoladas pelo método indireto. Foi isolado o Pestalotiopsis sp. de todos hospedeiros estudados. O fungo foi classificado com base em características morfológicas da colônia e de conídios. Todos os isolados foram preservados para estudos posteriores.
653 $aCultivos amazônicos
653 $aFitopatógeno
653 $aFungos endofíticos
700 1 $aCOSTA, R. C. da
700 1 $aNASCIMENTO, S. M. C. do
700 1 $aSANTOS, T. de P. F. dos
700 1 $aCARVALHO, E. de A.
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Embrapa Amazônia Oriental (CPATU) |
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