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Registro Completo |
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
11/03/1999 |
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Data da última atualização: |
11/03/1999 |
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Autoria: |
PINHEIRO, G. G. C.; SANO, E. E.; MENESES, P. R. |
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Título: |
Analise dos dados digitais de radar (satelite JERS-1, Banda L) para o estudo ambiental na regiao dos cerrados. |
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Ano de publicação: |
1998 |
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Fonte/Imprenta: |
In: SIMPOSIO BRASILEIRO DE SENSORIAMENTO REMOTO, 9., 1998, Santos, SP. Anais. Sao Jose dos Campos: INPE/MCT/SELPER, 1998. |
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Páginas: |
nao paginado. |
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Idioma: |
Português |
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Conteúdo: |
The objective of this paper was to evaluate the potencial of L-band synthetic aperture radar (SAR) data for environmental studies in the Brazilian Cerrados region. An analysis of the relationship between L band SAR data and measurements of surface roughness, soil moisture content and leaf area index from the Brasilia National Park was developd. The vegetation, soil and geological maps from the study area were integrated in a GIS software package to produce the biophysics map. A set of 15 sites was selected for field measurements in the following biophysical units: bare soil, "Campo Limpo", "Campo Sujo", "Cerrado Tipico". Radar backscatter coefficients (XX) from a wet season satellite overpass were compared with the field data to understand the influence of each variable in the L-band XX in the Cerrados region. |
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Palavras-Chave: |
Brasil; Distrito Federal; Environments; Parque Nacional de Brasilia. |
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Thesagro: |
Cerrado; Meio Ambiente; Radar; Satélite; Sensoriamento Remoto. |
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Thesaurus Nal: |
Brazil; remote sensing; satellites. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01720naa a2200301 a 4500
001 1544839
005 1999-03-11
008 1998 bl uuuu u00u1 u #d
100 1 $aPINHEIRO, G. G. C.
245 $aAnalise dos dados digitais de radar (satelite JERS-1, Banda L) para o estudo ambiental na regiao dos cerrados.
260 $c1998
300 $anao paginado.
520 $aThe objective of this paper was to evaluate the potencial of L-band synthetic aperture radar (SAR) data for environmental studies in the Brazilian Cerrados region. An analysis of the relationship between L band SAR data and measurements of surface roughness, soil moisture content and leaf area index from the Brasilia National Park was developd. The vegetation, soil and geological maps from the study area were integrated in a GIS software package to produce the biophysics map. A set of 15 sites was selected for field measurements in the following biophysical units: bare soil, "Campo Limpo", "Campo Sujo", "Cerrado Tipico". Radar backscatter coefficients (XX) from a wet season satellite overpass were compared with the field data to understand the influence of each variable in the L-band XX in the Cerrados region.
650 $aBrazil
650 $aremote sensing
650 $asatellites
650 $aCerrado
650 $aMeio Ambiente
650 $aRadar
650 $aSatélite
650 $aSensoriamento Remoto
653 $aBrasil
653 $aDistrito Federal
653 $aEnvironments
653 $aParque Nacional de Brasilia
700 1 $aSANO, E. E.
700 1 $aMENESES, P. R.
773 $tIn: SIMPOSIO BRASILEIRO DE SENSORIAMENTO REMOTO, 9., 1998, Santos, SP. Anais. Sao Jose dos Campos: INPE/MCT/SELPER, 1998.
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Registro original: |
Embrapa Cerrados (CPAC) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Corte. Para informações adicionais entre em contato com cnpgc.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Gado de Corte. |
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Data corrente: |
19/06/1998 |
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Data da última atualização: |
11/07/2007 |
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Autoria: |
CHAKRABORTY, S.; PERROT, R.; CHARCHAR, M. J. D'A.; FERNANDES, C. D.; KELEMU, S. |
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Afiliação: |
CSIRO. Division of Tropical Crops and Pastures. |
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Título: |
Variation in the Stylosanthes anthracnose pathogen: implications for australian cultivars. |
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Ano de publicação: |
1997 |
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Fonte/Imprenta: |
In: INTERNATIONAL GRASSLAND CONGRESS, 18., 1997, Winnipeg, Saskatoon. Proceedings... [S.l.: s.n., 1997?]. |
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Páginas: |
p. 13-1 / 13-2. |
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Idioma: |
Inglês |
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Notas: |
CNPGC. |
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Conteúdo: |
lsolates of Colletotrichun gloeosporioides wtich cause antracnose disease in the tropical pasture legume Stylosanthes were collected from its centre of diversity in South America. These and other isolates from Asia, Africa and Australia were studied using Random Amplified Polymorphic DNA (RAPD) markers and virulence on host differentials to assess the threat to Australian Stylosanthes cultivars from exotic races ofthis pathogen. A phenetic analysis of 90 isolates using RAPD markers showed a wide genetic diversity in the overall pathogen population. Compared to this, genetic diversity in the Australian population was very limited. A similar situation was noted for pathogenic variation where 43 of the 69 South American isolates could not be classified using linear discriminant functions developed using isolates of the current Australian races. Some isolates from Brazil caused serious anthracnose on Australian cultivars and accessions which are moderate to highly resistant to the Australian races. If accidentally introduced, these isolates may pose a potential threat to the Australian Stylosanthes cultivares. |
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Palavras-Chave: |
Anthracnosis; Brasil; Patogenecidade. |
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Thesagro: |
Antracnose; Colletotrichum Gloeosporioides; Marcador Genético; Variedade. |
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Thesaurus NAL: |
Australia; Brazil; genetic markers; pathogenicity; Stylosanthes; varieties. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02109naa a2200349 a 4500
001 1317325
005 2007-07-11
008 1997 bl uuuu u00u1 u #d
100 1 $aCHAKRABORTY, S.
245 $aVariation in the Stylosanthes anthracnose pathogen$bimplications for australian cultivars.
260 $c1997
300 $ap. 13-1 / 13-2.
500 $aCNPGC.
520 $alsolates of Colletotrichun gloeosporioides wtich cause antracnose disease in the tropical pasture legume Stylosanthes were collected from its centre of diversity in South America. These and other isolates from Asia, Africa and Australia were studied using Random Amplified Polymorphic DNA (RAPD) markers and virulence on host differentials to assess the threat to Australian Stylosanthes cultivars from exotic races ofthis pathogen. A phenetic analysis of 90 isolates using RAPD markers showed a wide genetic diversity in the overall pathogen population. Compared to this, genetic diversity in the Australian population was very limited. A similar situation was noted for pathogenic variation where 43 of the 69 South American isolates could not be classified using linear discriminant functions developed using isolates of the current Australian races. Some isolates from Brazil caused serious anthracnose on Australian cultivars and accessions which are moderate to highly resistant to the Australian races. If accidentally introduced, these isolates may pose a potential threat to the Australian Stylosanthes cultivares.
650 $aAustralia
650 $aBrazil
650 $agenetic markers
650 $apathogenicity
650 $aStylosanthes
650 $avarieties
650 $aAntracnose
650 $aColletotrichum Gloeosporioides
650 $aMarcador Genético
650 $aVariedade
653 $aAnthracnosis
653 $aBrasil
653 $aPatogenecidade
700 1 $aPERROT, R.
700 1 $aCHARCHAR, M. J. D'A.
700 1 $aFERNANDES, C. D.
700 1 $aKELEMU, S.
773 $tIn: INTERNATIONAL GRASSLAND CONGRESS, 18., 1997, Winnipeg, Saskatoon. Proceedings... [S.l.: s.n., 1997?].
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