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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
31/03/2009 |
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Data da última atualização: |
22/11/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
FITZJARRALD, D. R.; SAKAI, K. R.; MORAES, O. L. L.; OLIVEIRA JUNIOR, R. C. de; ACEVEDO, O. C.; CZIKOWSKY, M. J.; BELDINI, T. |
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Afiliação: |
David R. Fitzjarrald, Atmospheric Sciences Research Center State University of New York at Albany Albany New York USA; Ricardo K. Sakai, Atmospheric Sciences Research Center State University of New York at Albany, Albany, New York; Osvaldo L. L. Moraes, Departamento de Física Universidade Federal de Santa Maria; RAIMUNDO COSME DE OLIVEIRA JUNIOR, CPATU; Otávio C. Acevedo, Departamento de Física Universidade Federal de Santa Maria, Santa Maria; Matthew J. Czikowsky, Atmospheric Sciences Research Center State University of New York at Albany, Albany, New York; Troy Beldini, Projeto LBA Escritório e Laboratório de Apoio em Santarém, Santarém. |
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Título: |
Spatial and temporal rainfall variability near the Amazon-Tapajós confluence. |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
Journal of Geophysical Research: Biogeosciences, v. 113, n. G1, 2008. |
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Páginas: |
p. 1-17. |
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DOI: |
10.1029/2007JG000596 |
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Idioma: |
Inglês |
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Conteúdo: |
Do the influences of river breezes or other mesoscale effects lead to a systematic river proximity bias in Amazon rainfall data? We analyzed rainfall for a network of 38 rain gauges located near the confluence of the Tapajós and Amazon rivers in the eastern Amazon Basin. Tipping bucket rain gauges worked adequately in the Amazon rainfall regime, but careful field calibration and comparison with collocated conventional rain gauges were essential to incorporate daily totals from our array into regional maps. Stations very near the large rivers miss the afternoon convective rain, as expected if a river breeze promotes subsidence over the river, but paradoxically, this deficiency is more than compensated by additional nocturnal rainfall at these locations. The NOAA Climate Prediction Center (CPC) Morphing technique (CMORPH) passive infrared inferred rainfall data do an adequate job of describing medium scale variability in this region, but some localized breeze effects are not resolved at 0.25° resolution. For areas inland from the rivers, nocturnal rainfall contributes less than half of total precipitation. A large-scale rainfall increase just to the west of Santarém manifests itself locally as a ?tongue? of enhanced rain from along the wide area of open water at the Tapajós-Amazon confluence. The Amazon River breeze circulation affects rainfall more than does the Tapajós breeze, which moves contrary to the predominant wind. East of the riverbank, the effects of the Tapajós breeze extend only a few kilometers inland. Rainfall increases to the north of the Amazon, possibly the result of uplift over elevated terrain. Dry season rainfall increases by up to 30% going away from the Amazon River, as would be expected given breeze-induced subsidence over the river. MenosDo the influences of river breezes or other mesoscale effects lead to a systematic river proximity bias in Amazon rainfall data? We analyzed rainfall for a network of 38 rain gauges located near the confluence of the Tapajós and Amazon rivers in the eastern Amazon Basin. Tipping bucket rain gauges worked adequately in the Amazon rainfall regime, but careful field calibration and comparison with collocated conventional rain gauges were essential to incorporate daily totals from our array into regional maps. Stations very near the large rivers miss the afternoon convective rain, as expected if a river breeze promotes subsidence over the river, but paradoxically, this deficiency is more than compensated by additional nocturnal rainfall at these locations. The NOAA Climate Prediction Center (CPC) Morphing technique (CMORPH) passive infrared inferred rainfall data do an adequate job of describing medium scale variability in this region, but some localized breeze effects are not resolved at 0.25° resolution. For areas inland from the rivers, nocturnal rainfall contributes less than half of total precipitation. A large-scale rainfall increase just to the west of Santarém manifests itself locally as a ?tongue? of enhanced rain from along the wide area of open water at the Tapajós-Amazon confluence. The Amazon River breeze circulation affects rainfall more than does the Tapajós breeze, which moves contrary to the predominant wind. East of the riverbank, the effects of the Tapajós bre... Mostrar Tudo |
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Palavras-Chave: |
Brasil; Tapajós. |
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Thesagro: |
Águas Interiores; Bacia Hidrográfica; Balanço Hídrico; Clima; Evaporação; Precipitação Pluvial; Temperatura. |
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Thesaurus Nal: |
Amazonia. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02748naa a2200337 a 4500
001 1410232
005 2022-11-22
008 2008 bl uuuu u00u1 u #d
024 7 $a10.1029/2007JG000596$2DOI
100 1 $aFITZJARRALD, D. R.
245 $aSpatial and temporal rainfall variability near the Amazon-Tapajós confluence.$h[electronic resource]
260 $c2008
300 $ap. 1-17.
520 $aDo the influences of river breezes or other mesoscale effects lead to a systematic river proximity bias in Amazon rainfall data? We analyzed rainfall for a network of 38 rain gauges located near the confluence of the Tapajós and Amazon rivers in the eastern Amazon Basin. Tipping bucket rain gauges worked adequately in the Amazon rainfall regime, but careful field calibration and comparison with collocated conventional rain gauges were essential to incorporate daily totals from our array into regional maps. Stations very near the large rivers miss the afternoon convective rain, as expected if a river breeze promotes subsidence over the river, but paradoxically, this deficiency is more than compensated by additional nocturnal rainfall at these locations. The NOAA Climate Prediction Center (CPC) Morphing technique (CMORPH) passive infrared inferred rainfall data do an adequate job of describing medium scale variability in this region, but some localized breeze effects are not resolved at 0.25° resolution. For areas inland from the rivers, nocturnal rainfall contributes less than half of total precipitation. A large-scale rainfall increase just to the west of Santarém manifests itself locally as a ?tongue? of enhanced rain from along the wide area of open water at the Tapajós-Amazon confluence. The Amazon River breeze circulation affects rainfall more than does the Tapajós breeze, which moves contrary to the predominant wind. East of the riverbank, the effects of the Tapajós breeze extend only a few kilometers inland. Rainfall increases to the north of the Amazon, possibly the result of uplift over elevated terrain. Dry season rainfall increases by up to 30% going away from the Amazon River, as would be expected given breeze-induced subsidence over the river.
650 $aAmazonia
650 $aÁguas Interiores
650 $aBacia Hidrográfica
650 $aBalanço Hídrico
650 $aClima
650 $aEvaporação
650 $aPrecipitação Pluvial
650 $aTemperatura
653 $aBrasil
653 $aTapajós
700 1 $aSAKAI, K. R.
700 1 $aMORAES, O. L. L.
700 1 $aOLIVEIRA JUNIOR, R. C. de
700 1 $aACEVEDO, O. C.
700 1 $aCZIKOWSKY, M. J.
700 1 $aBELDINI, T.
773 $tJournal of Geophysical Research: Biogeosciences$gv. 113, n. G1, 2008.
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Registro original: |
Embrapa Amazônia Oriental (CPATU) |
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Registro Completo
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Biblioteca(s): |
Embrapa Café. |
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Data corrente: |
06/10/2011 |
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Data da última atualização: |
13/10/2016 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
DIOLA, V.; BRITO, G. G. de; CAIXETA, E. T.; MACIEL-ZAMBOLIM, E.; SAKIYAMA, N. S.; LOUREIRO, M. E. |
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Afiliação: |
Universidade Federal Rural do Rio de Janeiro; GIOVANI GREIGH DE BRITO, CNPA; EVELINE TEIXEIRA CAIXETA, SAPC; BIOCAFÉ/BIOAGRO; BIOCAFÉ/BIOAGRO; Universidade Federal de Viçosa. |
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Título: |
High-density genetic mapping for coffee leaf rust resistance. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
Tree Genetics & Genomes, v. 7, n. 6, p. 1199-1208, Dec. 2011. |
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Idioma: |
Inglês |
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Conteúdo: |
Coffee leaf rust caused by the fungus Hemileia vastatrix causes considerable economic losses for coffee producers. Although agrochemical products can provide sufficient disease control, the use of resistant cultivars is a safer alternative. This resistance may be constrained by one or a few genetic factors, mainly those found in material originating from interspecific hybrids. In this study, the genetic analysis of an F2 population consisting of 224 plants derived from a crossing of Híbrido de Timor UFV 427-15 (resistant) with Catuaí Amarelo IAC 30 (susceptible) showed that a dominant gene confers the resistance of coffee to race II of H. vastatrix. From a genetic map saturated with 25 amplified fragment length polymorphism (AFLP) markers linked to the resistance gene, we developed a high-density genetic map with six sequence-characterized amplified region (SCAR) markers delimiting a chromosomal region of 9.45 cM and flanking the dominant gene at 0.7 and 0.9 cM. This is the first saturated and high-density genetic map obtained from this region containing the resistance gene. The results of this study are of great importance for the introduction of molecular markers for marker-assisted selection; they will also facilitate studies related to the cloning, structure, and function of race-specific genes involved in the resistance of coffee trees to H. vastatrix. |
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Palavras-Chave: |
Dominant resistance gene; High-density genetic map. |
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Thesagro: |
Coffea Arábica; Hemileia Vastatrix. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/42966/1/High-density-genetic.pdf
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Marc: |
LEADER 02058naa a2200229 a 4500
001 1902620
005 2016-10-13
008 2011 bl uuuu u00u1 u #d
100 1 $aDIOLA, V.
245 $aHigh-density genetic mapping for coffee leaf rust resistance.$h[electronic resource]
260 $c2011
520 $aCoffee leaf rust caused by the fungus Hemileia vastatrix causes considerable economic losses for coffee producers. Although agrochemical products can provide sufficient disease control, the use of resistant cultivars is a safer alternative. This resistance may be constrained by one or a few genetic factors, mainly those found in material originating from interspecific hybrids. In this study, the genetic analysis of an F2 population consisting of 224 plants derived from a crossing of Híbrido de Timor UFV 427-15 (resistant) with Catuaí Amarelo IAC 30 (susceptible) showed that a dominant gene confers the resistance of coffee to race II of H. vastatrix. From a genetic map saturated with 25 amplified fragment length polymorphism (AFLP) markers linked to the resistance gene, we developed a high-density genetic map with six sequence-characterized amplified region (SCAR) markers delimiting a chromosomal region of 9.45 cM and flanking the dominant gene at 0.7 and 0.9 cM. This is the first saturated and high-density genetic map obtained from this region containing the resistance gene. The results of this study are of great importance for the introduction of molecular markers for marker-assisted selection; they will also facilitate studies related to the cloning, structure, and function of race-specific genes involved in the resistance of coffee trees to H. vastatrix.
650 $aCoffea Arábica
650 $aHemileia Vastatrix
653 $aDominant resistance gene
653 $aHigh-density genetic map
700 1 $aBRITO, G. G. de
700 1 $aCAIXETA, E. T.
700 1 $aMACIEL-ZAMBOLIM, E.
700 1 $aSAKIYAMA, N. S.
700 1 $aLOUREIRO, M. E.
773 $tTree Genetics & Genomes$gv. 7, n. 6, p. 1199-1208, Dec. 2011.
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Embrapa Café (CNPCa) |
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