Solar radiation use efficiency by soybean under field conditions in the amazon region.

Detalhes bibliográficos
Autor(a) principal: SOUZA, P. J. de O. P. de
Data de Publicação: 2009
Outros Autores: RIBEIRO, A., ROCHA, E. J. P. da, FARIAS, J. R. B., LOUREIRO, R. S., BISPO, C. C., SAMPAIO, L.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
Texto Completo: http://www.alice.cnptia.embrapa.br/alice/handle/doc/579467
Resumo: Abstract The objective of this work was to evaluate the ef? ciency of soybean (Glycine max) in intercepting and using solar radiation under natural ? eld conditions, in the Amazon region, Brazil. The meteorological data and the values of soybean growth and leaf area were obtained from an agrometeorological experiment carried out in Paragominas, Pará state, during 2007 and 2008. The radiation use ef? ciency (RUE) was obtained from the ratio between the above-ground biomass production and the intercepted photosynthetically active radiation (PAR) accumulated to 99 and 95 days after sowing, in 2007 and 2008, respectively. Climatic conditions during the experiment were very distinct, with reduction in rainfall in 2007, which began during the soybean mid-cycle, due to the El Niño phenomenon. An important reduction in the leaf area index and biomass production was observed during 2007. Under natural ? eld conditions in the Amazon region, the values of RUE were 1.46 and 1.99 g MJ-1 PAR in the 2007 and 2008 experiments, respectively. The probable reason for the differences found between these years might be associated to the water restriction in 2007 coupled with the higher air temperature and vapor pressure de? cit, and also to the increase in the fraction of diffuse radiation that reached the land surface in 2008. Index terms: Glycine max, Amazon region, leaf area index, radiation interception.
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spelling Solar radiation use efficiency by soybean under field conditions in the amazon region.Interceptação da radiaçãoRadiation interceptionRegião amazônicaÍndice de área foliarSoybeanSojaFisiologia vegetalÁrea foliarRadiação solarGlycine MaxRadiation use efficiencyPlant physiologyLeaf area indexAmazoniaAbstract The objective of this work was to evaluate the ef? ciency of soybean (Glycine max) in intercepting and using solar radiation under natural ? eld conditions, in the Amazon region, Brazil. The meteorological data and the values of soybean growth and leaf area were obtained from an agrometeorological experiment carried out in Paragominas, Pará state, during 2007 and 2008. The radiation use ef? ciency (RUE) was obtained from the ratio between the above-ground biomass production and the intercepted photosynthetically active radiation (PAR) accumulated to 99 and 95 days after sowing, in 2007 and 2008, respectively. Climatic conditions during the experiment were very distinct, with reduction in rainfall in 2007, which began during the soybean mid-cycle, due to the El Niño phenomenon. An important reduction in the leaf area index and biomass production was observed during 2007. Under natural ? eld conditions in the Amazon region, the values of RUE were 1.46 and 1.99 g MJ-1 PAR in the 2007 and 2008 experiments, respectively. The probable reason for the differences found between these years might be associated to the water restriction in 2007 coupled with the higher air temperature and vapor pressure de? cit, and also to the increase in the fraction of diffuse radiation that reached the land surface in 2008. Index terms: Glycine max, Amazon region, leaf area index, radiation interception.PAULO JORGE DE OLIVEIRA PONTE DE SOUZA, Universidade Federal Rural da Amazônia; ARISTIDES RIBEIRO, Universidade Federal de Viçosa; EDSON JOSÉ PAULINO DA ROCHA, Universidade Federal do Pará; JOSE RENATO BOUCAS FARIAS, CNPSo; RENATA SILVA LOUREIRO, Universidade Federal do Pará; CARLOS CAPELA BISPO, Universidade Fedral do Pará; LEILA SAMPAIO, Universidade Federal Rural da Amazônia.SOUZA, P. J. de O. P. deRIBEIRO, A.ROCHA, E. J. P. daFARIAS, J. R. B.LOUREIRO, R. S.BISPO, C. C.SAMPAIO, L.2011-04-10T11:11:11Z2011-04-10T11:11:11Z2010-01-0520092017-10-31T11:11:11Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlePesquisa Agropecuária Brasileira, Brasília, DF, v. 44, n. 10, p. 1211-1218, out. 2009.http://www.alice.cnptia.embrapa.br/alice/handle/doc/579467enginfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPA2017-08-15T22:37:24Zoai:www.alice.cnptia.embrapa.br:doc/579467Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestopendoar:21542017-08-15T22:37:24falseRepositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542017-08-15T22:37:24Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Solar radiation use efficiency by soybean under field conditions in the amazon region.
title Solar radiation use efficiency by soybean under field conditions in the amazon region.
spellingShingle Solar radiation use efficiency by soybean under field conditions in the amazon region.
SOUZA, P. J. de O. P. de
Interceptação da radiação
Radiation interception
Região amazônica
Índice de área foliar
Soybean
Soja
Fisiologia vegetal
Área foliar
Radiação solar
Glycine Max
Radiation use efficiency
Plant physiology
Leaf area index
Amazonia
title_short Solar radiation use efficiency by soybean under field conditions in the amazon region.
title_full Solar radiation use efficiency by soybean under field conditions in the amazon region.
title_fullStr Solar radiation use efficiency by soybean under field conditions in the amazon region.
title_full_unstemmed Solar radiation use efficiency by soybean under field conditions in the amazon region.
title_sort Solar radiation use efficiency by soybean under field conditions in the amazon region.
author SOUZA, P. J. de O. P. de
author_facet SOUZA, P. J. de O. P. de
RIBEIRO, A.
ROCHA, E. J. P. da
FARIAS, J. R. B.
LOUREIRO, R. S.
BISPO, C. C.
SAMPAIO, L.
author_role author
author2 RIBEIRO, A.
ROCHA, E. J. P. da
FARIAS, J. R. B.
LOUREIRO, R. S.
BISPO, C. C.
SAMPAIO, L.
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv PAULO JORGE DE OLIVEIRA PONTE DE SOUZA, Universidade Federal Rural da Amazônia; ARISTIDES RIBEIRO, Universidade Federal de Viçosa; EDSON JOSÉ PAULINO DA ROCHA, Universidade Federal do Pará; JOSE RENATO BOUCAS FARIAS, CNPSo; RENATA SILVA LOUREIRO, Universidade Federal do Pará; CARLOS CAPELA BISPO, Universidade Fedral do Pará; LEILA SAMPAIO, Universidade Federal Rural da Amazônia.
dc.contributor.author.fl_str_mv SOUZA, P. J. de O. P. de
RIBEIRO, A.
ROCHA, E. J. P. da
FARIAS, J. R. B.
LOUREIRO, R. S.
BISPO, C. C.
SAMPAIO, L.
dc.subject.por.fl_str_mv Interceptação da radiação
Radiation interception
Região amazônica
Índice de área foliar
Soybean
Soja
Fisiologia vegetal
Área foliar
Radiação solar
Glycine Max
Radiation use efficiency
Plant physiology
Leaf area index
Amazonia
topic Interceptação da radiação
Radiation interception
Região amazônica
Índice de área foliar
Soybean
Soja
Fisiologia vegetal
Área foliar
Radiação solar
Glycine Max
Radiation use efficiency
Plant physiology
Leaf area index
Amazonia
description Abstract The objective of this work was to evaluate the ef? ciency of soybean (Glycine max) in intercepting and using solar radiation under natural ? eld conditions, in the Amazon region, Brazil. The meteorological data and the values of soybean growth and leaf area were obtained from an agrometeorological experiment carried out in Paragominas, Pará state, during 2007 and 2008. The radiation use ef? ciency (RUE) was obtained from the ratio between the above-ground biomass production and the intercepted photosynthetically active radiation (PAR) accumulated to 99 and 95 days after sowing, in 2007 and 2008, respectively. Climatic conditions during the experiment were very distinct, with reduction in rainfall in 2007, which began during the soybean mid-cycle, due to the El Niño phenomenon. An important reduction in the leaf area index and biomass production was observed during 2007. Under natural ? eld conditions in the Amazon region, the values of RUE were 1.46 and 1.99 g MJ-1 PAR in the 2007 and 2008 experiments, respectively. The probable reason for the differences found between these years might be associated to the water restriction in 2007 coupled with the higher air temperature and vapor pressure de? cit, and also to the increase in the fraction of diffuse radiation that reached the land surface in 2008. Index terms: Glycine max, Amazon region, leaf area index, radiation interception.
publishDate 2009
dc.date.none.fl_str_mv 2009
2010-01-05
2011-04-10T11:11:11Z
2011-04-10T11:11:11Z
2017-10-31T11:11:11Z
dc.type.driver.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv Pesquisa Agropecuária Brasileira, Brasília, DF, v. 44, n. 10, p. 1211-1218, out. 2009.
http://www.alice.cnptia.embrapa.br/alice/handle/doc/579467
identifier_str_mv Pesquisa Agropecuária Brasileira, Brasília, DF, v. 44, n. 10, p. 1211-1218, out. 2009.
url http://www.alice.cnptia.embrapa.br/alice/handle/doc/579467
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv reponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron_str EMBRAPA
institution EMBRAPA
reponame_str Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
collection Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)
repository.name.fl_str_mv Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
repository.mail.fl_str_mv cg-riaa@embrapa.br
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