Solar radiation use efficiency by soybean under field conditions in the amazon region.
Autor(a) principal: | |
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Data de Publicação: | 2009 |
Outros Autores: | , , , , , |
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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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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1794503376376954880 |