|
|
Registro Completo |
Biblioteca(s): |
Embrapa Amapá; Embrapa Amazônia Oriental; Embrapa Recursos Genéticos e Biotecnologia; Embrapa Roraima. |
Data corrente: |
19/09/2022 |
Data da última atualização: |
13/03/2023 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
MARCA-ZEVALLOS, M. J.; MOULATLET, G. M.; SOUSA, T. R.; SCHIETTI, J.; COELHO, L. de S.; RAMOS, J. F.; LIMA FILHO, D. de A.; AMARAL, I. L.; MATOS, F. D. de A.; RINCÓN, L. M.; REVILLA, J. D. C.; PANSONATO, M. P.; GRIBEL, R.; BARBOSA, E. M.; MIRANDA, I. P. de A.; BONATES, L. C. de M.; GUEVARA, J. E.; SALOMÃO, R. P.; FERREIRA, L. V.; AMARAL, D. D. do; PITMAN, N. C. A.; VRIESENDORP, C.; BAKER, T. R.; BRIENEN, R.; CARIM, M. de J. V.; GUIMARÃES, J. R. da S.; VARGAS, P. N.; HUAMANTUPA-CHUQUIMACO, I.; LAURANCE, W. F.; LAURANCE, S. G. W.; ANDRADE, A.; CAMARGO, J. L.; MENDOZA, A. M.; VASQUEZ, R.; GAMARRA, L. V.; MOGOLLÓN, H. F.; MARIMON-JUNIOR, B. H.; MARIMON, B. S.; KILLEEN, T. J.; FARIAS, E. de S.; NEILL, D.; MEDEIROS, M. B. de; SIMON, M. F.; TERBORGH, J.; MONTERO, J. C.; LICONA, J. C.; MOSTACEDO, B.; GARCÍA-VILLACORTA, R.; ARAUJO-MURAKAMI, A.; ARROYO, L.; VILLARROEL, D.; DÁVILA, N.; SOUZA, F. C. de; CARVALHO, F. A.; COMISKEY, J. A.; ALONSO, A.; DALLMEIER, F.; OLIVEIRA, A. A.; CASTILHO, C. V. de; LLOYD, J.; FELDPAUSCH, T. R.; PAREDES, M. R.; ARBOLEDA, N. C.; LÓPEZ, D. C.; CORREDOR, G. A. A.; FIORE, A. di; RUDAS, A.; PRIETO, A.; BARBOSA, F. R.; NORONHA, J. C.; RODRIGUES, D. de J.; CARPANEDO, R. de S.; CORONADO, E. N. H.; PERES, C. A.; MILLIKEN, W.; FUENTES, A.; TELLO, J. S.; CERÓN, C.; KLITGAARD, B.; TIRADO, M.; SIERRA, R.; YOUNG, K. R.; RIVAS-TORRES, G. F.; STEVENSON, P. R.; CANO, A.; WANG, O.; BAIDER, C.; BARLOW, J.; FERREIRA, J. N.; BERENGUER, E.; STROPP, J.; BALSLEV, H.; REATEGUI, M. A. A.; MESONES, I.; SANDOVAL, E. H. V.; GONZALES, T.; PANSINI, S.; REIS, N. F. C.; SAMPAIO, A. F.; VOS, V. A.; CUENCA, W. P.; MANZATTO, A. G.; FARFAN-RIOS, W.; SILMAN, M. R.; GARCIA-CABRERA, K.; HILDEBRAND, P. von; GUEDES, M. C.; COSTA, J. B. P.; PHILLIPS, J. F.; VELA, C. I. A.; TOLEDO, J. J. de; PAULETTO, D.; VALVERDE, F. C.; UMAÑA, M. N.; PHILLIPS, O. L.; MAGNUSSON, W. E.; STEEGE, H. ter; COSTA, F. R. C. |
Afiliação: |
MANUEL J. MARCA-ZEVALLOS, Inst. Nacional de Pesquisas da Amazônia; GABRIEL M. MOULATLET, Univ. Regional Amazónica Ikiam, Tena, Mexico; THAIANE R. SOUSA, Inst. Nacional de Pesquisas da Amazônia, Brazil; JULIANA SCHIETTI, Inst. Nacional de Pesquisas da Amazônia; LUIZ DE SOUZA COELHO, Inst. Nacional de Pesquisas da Amazônia; JOSÉ FERREIRA RAMOS, Inst. Nacional de Pesquisas da Amazônia; DIOGENES DE ANDRADE LIMA FILHO, Inst. Nacional de Pesquisas da Amazônia; IÊDA LEÃO AMARAL, Inst. Nacional de Pesquisas da Amazônia; FRANCISCA DIONÍZIA DE ALMEIDA MATOS, Inst. Nacional de Pesquisas da Amazônia; LORENA M. RINCÓN, Inst. Nacional de Pesquisas da Amazônia; JUAN DAVID CARDENAS REVILLA, Inst. Nacional de Pesquisas da Amazônia; MARCELO PETRATTI PANSONATO, Inst. Nacional de Pesquisas da Amazônia; ROGÉRIO GRIBEL, Inst. Nacional de Pesquisas da Amazônia; EDELCILIO MARQUES BARBOSA, Inst. Nacional de Pesquisas da Amazônia; IRES PAULA DE ANDRADE MIRANDA, Inst. Nacional de Pesquisas da Amazônia; LUIZ CARLOS DE MATOS BONATES, Inst. Nacional de Pesquisas da Amazônia; JUAN ERNESTO GUEVARA, Univ. de las Américas, Ecuador; RAFAEL P. SALOMÃO, Univ. Federal Rural da Amazônia; LEANDRO VALLE FERREIRA, Museu Paraense Emílio Goeldi; DÁRIO DANTAS DO AMARAL, Museu Paraense Emílio Goeldi; NIGEL C. A. PITMAN, The Field Museum, Chicago, USA; CORINE VRIESENDORP, The Field Museum, USA; TIM R. BAKER, Univ. of Leeds, UK; ROEL BRIENEN, Univ. of Leeds, UK; MARCELO DE JESUS VEIGA CARIM, Inst. de Pesquisas Científicas e Tecnológicas do Amapá; JOSÉ RENAN DA SILVA GUIMARÃES, Inst. de Pesquisas Científicas e Tecnológicas do Amapá; PERCY NÚÑEZ VARGAS, Univ. Nacional de San Antonio Abad del Cusco, Peru; ISAU HUAMANTUPA-CHUQUIMACO, Univ. Nacional de San Antonio Abad del Cusco, Peru; WILLIAM F. LAURANCE, James Cook Univ., Australia; SUSAN G. W. LAURANCE, James Cook Univ., Cairns, Australia; ANA ANDRADE, Inst. Nacional de Pesquisas da Amazônia; JOSÉ LUÍS CAMARGO, Inst. Nacional de Pesquisas da Amazônia; ABEL MONTEAGUDO MENDOZA, Jardín Botánico de Missouri, Oxapampa, Peru; RODOLFO VASQUEZ, Jardín Botánico de Missouri, Peru; LUIS VALENZUELA GAMARRA, Jardín Botánico de Missouri, Peru; HUGO F. MOGOLLÓN, Endangered Species Coalition, USA; BEN HUR MARIMON-JUNIOR, Univ. do Estado de Mato Grosso; BEATRIZ S. MARIMON, Univ. do Estado de Mato Grosso; TIMOTHY J. KILLEEN, Agteca-Amazonica, Bolivia; EMANUELLE DE SOUSA FARIAS, Inst. Leônidas e Maria Deane, Fiocruz; DAVID NEILL, Univ. Estatal Amazónica, Ecuador; MARCELO BRILHANTE DE MEDEIROS, Cenargen; MARCELO FRAGOMENI SIMON, Cenargen; JOHN TERBORGH, James Cook Univ., Australia; JUAN CARLOS MONTERO, Inst. Nacional de Pesquisas da Amazônia; JUAN CARLOS LICONA, Inst. Boliviano de Investigacion Forestal, Bolivia; BONIFACIO MOSTACEDO, Univ. Autónoma Gabriel René Moreno, Bolivia; ROOSEVELT GARCÍA-VILLACORTA, Cornell Univ., USA; ALEJANDRO ARAUJO-MURAKAMI, Univ. Autónoma Gabriel Rene Moreno, Bolivia; LUZMILA ARROYO, Univ. Autónoma Gabriel Rene Moreno, Bolivia; DANIEL VILLARROEL, Univ. Autónoma Gabriel Rene Moreno, Bolivia; NÁLLARETT DÁVILA, Univ. Estadual de Campinas; FERNANDA COELHO DE SOUZA, Univ. of Leeds, UK; FERNANDA ANTUNES CARVALHO, Inst. Nacional de Pesquisas da Amazônia; JAMES A. COMISKEY, National Park Service, USA; ALFONSO ALONSO, Smithsonian Conservation Biology Inst., USA; FRANCISCO DALLMEIER, Smithsonian Conservation Biology Inst., USA; ALEXANDRE A. OLIVEIRA, Univ. de Sao Paulo; CAROLINA VOLKMER DE CASTILHO, CPAF-RR; JON LLOYD, Imperial College London, UK; TED R. FELDPAUSCH, Univ. of Leeds, UK; MARCOS RÍOS PAREDES, Servicios de Biodiversidad EIRL, Peru; NICOLÁS CASTAÑO ARBOLEDA, Herbario Amazónico Colombiano, Inst. SINCHI, Colombia; DAIRON CÁRDENAS LÓPEZ, Herbario Amazónico Colombiano, Inst. SINCHI, Colombia; GERARDO A. AYMARD CORREDOR, Herbario Universitario (PORT), UNELLEZ-Guanare, Venezuela; ANTHONY DI FIORE, Univ. of Texas at Austin, USA; AGUSTÍN RUDAS, Univ. Nacional de Colombia, Colombia; ADRIANA PRIETO, Univ. Nacional de Colombia, Colombia; FLÁVIA RODRIGUES BARBOSA, Federal Univ. of Mato Grosso; JANAÍNA COSTA NORONHA, Federal Univ. of Mato Grosso; DOMINGOS DE JESUS RODRIGUES, Federal Univ. of Mato Grosso; RAINIELLEN DE SÁ CARPANEDO, Federal Univ. of Mato Grosso; EURÍDICE N. HONORIO CORONADO, Univ. of Leeds, UK; CARLOS A. PERES, Univ. of East Anglia, UK; WILLIAM MILLIKEN, Royal Botanic Gardens, UK; ALFREDO FUENTES, Univ. UMSA, Bolivia; J. SEBASTIÁN TELLO, Missouri Botanical Garden, USA; CARLOS CERÓN, Univ. Central, Ecuador; BENTE KLITGAARD, Royal Botanic Gardens, Kew, UK; MILTON TIRADO, GeoIS, Quito, Ecuador; RODRIGO SIERRA, GeoIS, Quito, Ecuador; KENNETH R. YOUNG, Univ. of Texas at Austin, USA; GONZALO FRANCISCO RIVAS-TORRES, Univ. San Francisco de Quito-USFQ, Ecuador; PABLO R. STEVENSON, Univ. de los Andes, Colombia; ANGELA CANO, Univ. de los Andes, Colombia; OPHELIA WANG, Northern Arizona Univ., USA; CLÁUDIA BAIDER, Univ. de Sao Paulo; JOS BARLOW, Lancaster Univ., UK; JOICE NUNES FERREIRA, CPATU; ERIKA BERENGUER, Lancaster Univ., UK; JULIANA STROPP, Museo Nacional de Ciencias Naturales (MNCN-CSIC), Spain; HENRIK BALSLEV, Aarhus Univ., Denmark; MANUEL AUGUSTO AHUITE REATEGUI, PLUSPRETOL, Peru; ITALO MESONES, Univ. of California, USA; ELVIS H. VALDERRAMA SANDOVAL, Univ. of Missouri, USA; THERANY GONZALES, ACEER Foundation, Peru; SUSAMAR PANSINI, Univ. Federal de Rondônia; NEIDIANE FARIAS COSTA REIS, Univ. Federal de Rondônia; ADEILZA FELIPE SAMPAIO, Univ. Federal de Rondônia; VINCENT ANTOINE VOS, Univ. Autónoma del Beni José Ballivián, Bolivia; WALTER PALACIOS CUENCA, Cambridge Univ. Botanic Garden, UK; ANGELO GILBERTO MANZATTO, Univ. Federal de Rondônia; WILLIAM FARFAN-RIOS, Univ. Nacional de San Antonio Abad del Cusco, Peru; MILES R. SILMAN, Wake Forest Univ., USA; KARINA GARCIA-CABRERA, Wake Forest Univ., USA; PATRICIO VON HILDEBRAND, Fundación Estación de Biología, Colombia; MARCELINO CARNEIRO GUEDES, CPAF-AP; JANAINA BARBOSA PEDROSA COSTA; JUAN FERNANDO PHILLIPS, Fundación Puerto Rastrojo, Colombia; CÉSAR I. A. VELA, Univ. Nacional de San Antonio Abad del Cusco, Peru; JOSÉ JULIO DE TOLEDO, Univ. Federal do Amapá; DANIELA PAULETTO, Univ. Federal do Oeste do Pará; FERNANDO CORNEJO VALVERDE, Andes to Amazon Biodiversity Program, Peru; MARIA NATALIA UMAÑA, Univ. of Michigan, USA; OLIVER L. PHILLIPS, Univ. of Leeds, Leeds, UK; WILLIAM E. MAGNUSSON, Inst. Nacional de Pesquisas da Amazônia; HANS TER STEEGE, Vrije Univ. Amsterdam, the Netherlands; FLÁVIA R. C. COSTA, Inst. Nacional de Pesquisas da Amazônia. |
Título: |
Local hydrological conditions influence tree diversity and composition across the Amazon basin. |
Ano de publicação: |
2022 |
Fonte/Imprenta: |
Ecography, v. 11, 2022. |
DOI: |
https://doi.org/10.1111/ecog.06125 |
Idioma: |
Inglês |
Conteúdo: |
Tree diversity and composition in Amazonia are known to be strongly determined by the water supplied by precipitation. Nevertheless, within the same climatic regime, water availability is modulated by local topography and soil characteristics (hereafter referred to as local hydrological conditions), varying from saturated and poorly drained to well-drained and potentially dry areas. While these conditions may be expected to influence species distribution, the impacts of local hydrological conditions on tree diversity and composition remain poorly understood at the whole Amazon basin scale. Using a dataset of 443 1-ha non-flooded forest plots distributed across the basin, we investigate how local hydrological conditions influence 1) tree alpha diversity, 2) the community-weighted wood density mean (CWM-wd) – a proxy for hydraulic resistance and 3) tree species composition. We find that the effect of local hydrological conditions on tree diversity depends on climate, being more evident in wetter forests, where diversity increases towards locations with well-drained soils. CWM-wd increased towards better drained soils in Southern and Western Amazonia. Tree species composition changed along local soil hydrological gradients in Central-Eastern, Western and Southern Amazonia, and those changes were correlated with changes in the mean wood density of plots. Our results suggest that local hydrological gradients filter species, influencing the diversity and composition of Amazonian forests. Overall, this study shows that the effect of local hydrological conditions is pervasive, extending over wide Amazonian regions, and reinforces the importance of accounting for local topography and hydrology to better understand the likely response and resilience of forests to increased frequency of extreme climate events and rising temperatures. MenosTree diversity and composition in Amazonia are known to be strongly determined by the water supplied by precipitation. Nevertheless, within the same climatic regime, water availability is modulated by local topography and soil characteristics (hereafter referred to as local hydrological conditions), varying from saturated and poorly drained to well-drained and potentially dry areas. While these conditions may be expected to influence species distribution, the impacts of local hydrological conditions on tree diversity and composition remain poorly understood at the whole Amazon basin scale. Using a dataset of 443 1-ha non-flooded forest plots distributed across the basin, we investigate how local hydrological conditions influence 1) tree alpha diversity, 2) the community-weighted wood density mean (CWM-wd) – a proxy for hydraulic resistance and 3) tree species composition. We find that the effect of local hydrological conditions on tree diversity depends on climate, being more evident in wetter forests, where diversity increases towards locations with well-drained soils. CWM-wd increased towards better drained soils in Southern and Western Amazonia. Tree species composition changed along local soil hydrological gradients in Central-Eastern, Western and Southern Amazonia, and those changes were correlated with changes in the mean wood density of plots. Our results suggest that local hydrological gradients filter species, influencing the diversity and composition of Amazonian f... Mostrar Tudo |
Palavras-Chave: |
Amazon basin; HAND; Species composition; Tree diversity. |
Thesaurus Nal: |
Wood density. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1146604/1/Ecography-2022-Marca8208Zevallos-Local-hydrological-conditions-influence-tree-diversity-and-composition-across-the-1.pdf
|
Marc: |
LEADER 06087naa a2201597 a 4500 001 2146720 005 2023-03-13 008 2022 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1111/ecog.06125$2DOI 100 1 $aMARCA-ZEVALLOS, M. J. 245 $aLocal hydrological conditions influence tree diversity and composition across the Amazon basin.$h[electronic resource] 260 $c2022 520 $aTree diversity and composition in Amazonia are known to be strongly determined by the water supplied by precipitation. Nevertheless, within the same climatic regime, water availability is modulated by local topography and soil characteristics (hereafter referred to as local hydrological conditions), varying from saturated and poorly drained to well-drained and potentially dry areas. While these conditions may be expected to influence species distribution, the impacts of local hydrological conditions on tree diversity and composition remain poorly understood at the whole Amazon basin scale. Using a dataset of 443 1-ha non-flooded forest plots distributed across the basin, we investigate how local hydrological conditions influence 1) tree alpha diversity, 2) the community-weighted wood density mean (CWM-wd) – a proxy for hydraulic resistance and 3) tree species composition. We find that the effect of local hydrological conditions on tree diversity depends on climate, being more evident in wetter forests, where diversity increases towards locations with well-drained soils. CWM-wd increased towards better drained soils in Southern and Western Amazonia. Tree species composition changed along local soil hydrological gradients in Central-Eastern, Western and Southern Amazonia, and those changes were correlated with changes in the mean wood density of plots. Our results suggest that local hydrological gradients filter species, influencing the diversity and composition of Amazonian forests. Overall, this study shows that the effect of local hydrological conditions is pervasive, extending over wide Amazonian regions, and reinforces the importance of accounting for local topography and hydrology to better understand the likely response and resilience of forests to increased frequency of extreme climate events and rising temperatures. 650 $aWood density 653 $aAmazon basin 653 $aHAND 653 $aSpecies composition 653 $aTree diversity 700 1 $aMOULATLET, G. M. 700 1 $aSOUSA, T. R. 700 1 $aSCHIETTI, J. 700 1 $aCOELHO, L. de S. 700 1 $aRAMOS, J. F. 700 1 $aLIMA FILHO, D. de A. 700 1 $aAMARAL, I. L. 700 1 $aMATOS, F. D. de A. 700 1 $aRINCÓN, L. M. 700 1 $aREVILLA, J. D. C. 700 1 $aPANSONATO, M. P. 700 1 $aGRIBEL, R. 700 1 $aBARBOSA, E. M. 700 1 $aMIRANDA, I. P. de A. 700 1 $aBONATES, L. C. de M. 700 1 $aGUEVARA, J. E. 700 1 $aSALOMÃO, R. P. 700 1 $aFERREIRA, L. V. 700 1 $aAMARAL, D. D. do 700 1 $aPITMAN, N. C. A. 700 1 $aVRIESENDORP, C. 700 1 $aBAKER, T. R. 700 1 $aBRIENEN, R. 700 1 $aCARIM, M. de J. V. 700 1 $aGUIMARÃES, J. R. da S. 700 1 $aVARGAS, P. N. 700 1 $aHUAMANTUPA-CHUQUIMACO, I. 700 1 $aLAURANCE, W. F. 700 1 $aLAURANCE, S. G. W. 700 1 $aANDRADE, A. 700 1 $aCAMARGO, J. L. 700 1 $aMENDOZA, A. M. 700 1 $aVASQUEZ, R. 700 1 $aGAMARRA, L. V. 700 1 $aMOGOLLÓN, H. F. 700 1 $aMARIMON-JUNIOR, B. H. 700 1 $aMARIMON, B. S. 700 1 $aKILLEEN, T. J. 700 1 $aFARIAS, E. de S. 700 1 $aNEILL, D. 700 1 $aMEDEIROS, M. B. de 700 1 $aSIMON, M. F. 700 1 $aTERBORGH, J. 700 1 $aMONTERO, J. C. 700 1 $aLICONA, J. C. 700 1 $aMOSTACEDO, B. 700 1 $aGARCÍA-VILLACORTA, R. 700 1 $aARAUJO-MURAKAMI, A. 700 1 $aARROYO, L. 700 1 $aVILLARROEL, D. 700 1 $aDÁVILA, N. 700 1 $aSOUZA, F. C. de 700 1 $aCARVALHO, F. A. 700 1 $aCOMISKEY, J. A. 700 1 $aALONSO, A. 700 1 $aDALLMEIER, F. 700 1 $aOLIVEIRA, A. A. 700 1 $aCASTILHO, C. V. de 700 1 $aLLOYD, J. 700 1 $aFELDPAUSCH, T. R. 700 1 $aPAREDES, M. R. 700 1 $aARBOLEDA, N. C. 700 1 $aLÓPEZ, D. C. 700 1 $aCORREDOR, G. A. A. 700 1 $aFIORE, A. di 700 1 $aRUDAS, A. 700 1 $aPRIETO, A. 700 1 $aBARBOSA, F. R. 700 1 $aNORONHA, J. C. 700 1 $aRODRIGUES, D. de J. 700 1 $aCARPANEDO, R. de S. 700 1 $aCORONADO, E. N. H. 700 1 $aPERES, C. A. 700 1 $aMILLIKEN, W. 700 1 $aFUENTES, A. 700 1 $aTELLO, J. S. 700 1 $aCERÓN, C. 700 1 $aKLITGAARD, B. 700 1 $aTIRADO, M. 700 1 $aSIERRA, R. 700 1 $aYOUNG, K. R. 700 1 $aRIVAS-TORRES, G. F. 700 1 $aSTEVENSON, P. R. 700 1 $aCANO, A. 700 1 $aWANG, O. 700 1 $aBAIDER, C. 700 1 $aBARLOW, J. 700 1 $aFERREIRA, J. N. 700 1 $aBERENGUER, E. 700 1 $aSTROPP, J. 700 1 $aBALSLEV, H. 700 1 $aREATEGUI, M. A. A. 700 1 $aMESONES, I. 700 1 $aSANDOVAL, E. H. V. 700 1 $aGONZALES, T. 700 1 $aPANSINI, S. 700 1 $aREIS, N. F. C. 700 1 $aSAMPAIO, A. F. 700 1 $aVOS, V. A. 700 1 $aCUENCA, W. P. 700 1 $aMANZATTO, A. G. 700 1 $aFARFAN-RIOS, W. 700 1 $aSILMAN, M. R. 700 1 $aGARCIA-CABRERA, K. 700 1 $aHILDEBRAND, P. von 700 1 $aGUEDES, M. C. 700 1 $aCOSTA, J. B. P. 700 1 $aPHILLIPS, J. F. 700 1 $aVELA, C. I. A. 700 1 $aTOLEDO, J. J. de 700 1 $aPAULETTO, D. 700 1 $aVALVERDE, F. C. 700 1 $aUMAÑA, M. N. 700 1 $aPHILLIPS, O. L. 700 1 $aMAGNUSSON, W. E. 700 1 $aSTEEGE, H. ter 700 1 $aCOSTA, F. R. C. 773 $tEcography$gv. 11, 2022.
Download
Esconder MarcMostrar Marc Completo |
Registro original: |
Embrapa Roraima (CPAF-RR) |
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
Registro Completo
Biblioteca(s): |
Embrapa Semiárido. |
Data corrente: |
19/03/2012 |
Data da última atualização: |
09/04/2012 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
CHAVES, A. R. de M.; MARTINS, S. C. V.; BATISTA, K. D.; CELIN, E. F.; MATTA, F. M. da. |
Afiliação: |
AGNALDO RODRIGUES DE MELO CHAVES, CPATSA; SAMUEL C. V. MARTINS; KARINE D. BATISTA; ELAINE F. CELIN; FÁBIO M. DA MATTA. |
Título: |
Varying leaf-to-fruit ratios affect branch growth and dieback, with little to no effect on photosynthesis, carbohydrate or mineral pools, in different canopy positions of field-grown coffee trees. |
Ano de publicação: |
2012 |
Fonte/Imprenta: |
Environmental and Experimental Botany, v. 77, p. 207?218, 2012. |
Idioma: |
Inglês |
Conteúdo: |
Heavy bearing is a typical phenomenon on unshaded coffee (Coffea arabica L.) trees and limits both the production and retention of leaves, leading to branch dieback, and, thus, results in a strong biennial bearing pattern. The major goals of this study were to investigate the physiological mechanisms that may be associated with the leaf-to-fruit ratio (LFR), branch dieback, biennial production and the relationships between carbohydrate and mineral fluctuations and branch dieback in coffee plants. The trees were grown in north?south-oriented hedgerows under conditions of full sunlight. Leaves and plagiotropic branches from the upper and lower strata of the east- and west-facing sides of the hedgerow were examined. A strong biennial pattern of coffee production was observed over three harvests. Overall, the east face of the hedgerow produced a more sellable crop than the west face, and this was associated with more light availability for the east-facing branches. The branch growth rate was higher with an increasing LFR during 2006?2007, regardless of the canopy position, and no compensatory increase in the photosynthetic rate was found in response to a decreasing LFR. Due to a relatively low fruit yield in 2007?2008, there was no branch dieback. The extent of branch dieback increased dramatically with decreasing LFR and was probably not closely related to changes in the concentrations of carbohydrates, amino acids and minerals. The extent of branch dieback was apparently unrelated to the differences in the photosynthetic rates per unit leaf area, carbon isotope composition, or oxidative stress, as was assessed by the electrolyte leakage from the leaf tissues. We discuss these responses in terms of the relative lack of branch autonomy in coffee trees. MenosHeavy bearing is a typical phenomenon on unshaded coffee (Coffea arabica L.) trees and limits both the production and retention of leaves, leading to branch dieback, and, thus, results in a strong biennial bearing pattern. The major goals of this study were to investigate the physiological mechanisms that may be associated with the leaf-to-fruit ratio (LFR), branch dieback, biennial production and the relationships between carbohydrate and mineral fluctuations and branch dieback in coffee plants. The trees were grown in north?south-oriented hedgerows under conditions of full sunlight. Leaves and plagiotropic branches from the upper and lower strata of the east- and west-facing sides of the hedgerow were examined. A strong biennial pattern of coffee production was observed over three harvests. Overall, the east face of the hedgerow produced a more sellable crop than the west face, and this was associated with more light availability for the east-facing branches. The branch growth rate was higher with an increasing LFR during 2006?2007, regardless of the canopy position, and no compensatory increase in the photosynthetic rate was found in response to a decreasing LFR. Due to a relatively low fruit yield in 2007?2008, there was no branch dieback. The extent of branch dieback increased dramatically with decreasing LFR and was probably not closely related to changes in the concentrations of carbohydrates, amino acids and minerals. The extent of branch dieback was apparently unrel... Mostrar Tudo |
Palavras-Chave: |
Cultivo. |
Thesagro: |
Café; Crescimento; Fotossíntese. |
Categoria do assunto: |
A Sistemas de Cultivo |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/55950/1/Artigo-Environmental-and-Experimental-Botany-2012.pdf
|
Marc: |
LEADER 02520naa a2200217 a 4500 001 1919316 005 2012-04-09 008 2012 bl uuuu u00u1 u #d 100 1 $aCHAVES, A. R. de M. 245 $aVarying leaf-to-fruit ratios affect branch growth and dieback, with little to no effect on photosynthesis, carbohydrate or mineral pools, in different canopy positions of field-grown coffee trees.$h[electronic resource] 260 $c2012 520 $aHeavy bearing is a typical phenomenon on unshaded coffee (Coffea arabica L.) trees and limits both the production and retention of leaves, leading to branch dieback, and, thus, results in a strong biennial bearing pattern. The major goals of this study were to investigate the physiological mechanisms that may be associated with the leaf-to-fruit ratio (LFR), branch dieback, biennial production and the relationships between carbohydrate and mineral fluctuations and branch dieback in coffee plants. The trees were grown in north?south-oriented hedgerows under conditions of full sunlight. Leaves and plagiotropic branches from the upper and lower strata of the east- and west-facing sides of the hedgerow were examined. A strong biennial pattern of coffee production was observed over three harvests. Overall, the east face of the hedgerow produced a more sellable crop than the west face, and this was associated with more light availability for the east-facing branches. The branch growth rate was higher with an increasing LFR during 2006?2007, regardless of the canopy position, and no compensatory increase in the photosynthetic rate was found in response to a decreasing LFR. Due to a relatively low fruit yield in 2007?2008, there was no branch dieback. The extent of branch dieback increased dramatically with decreasing LFR and was probably not closely related to changes in the concentrations of carbohydrates, amino acids and minerals. The extent of branch dieback was apparently unrelated to the differences in the photosynthetic rates per unit leaf area, carbon isotope composition, or oxidative stress, as was assessed by the electrolyte leakage from the leaf tissues. We discuss these responses in terms of the relative lack of branch autonomy in coffee trees. 650 $aCafé 650 $aCrescimento 650 $aFotossíntese 653 $aCultivo 700 1 $aMARTINS, S. C. V. 700 1 $aBATISTA, K. D. 700 1 $aCELIN, E. F. 700 1 $aMATTA, F. M. da 773 $tEnvironmental and Experimental Botany$gv. 77, p. 207?218, 2012.
Download
Esconder MarcMostrar Marc Completo |
Registro original: |
Embrapa Semiárido (CPATSA) |
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
Expressão de busca inválida. Verifique!!! |
|
|