Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/579467
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dc.contributor.authorSOUZA, P. J. de O. P. dept_BR
dc.contributor.authorRIBEIRO, A.pt_BR
dc.contributor.authorROCHA, E. J. P. dapt_BR
dc.contributor.authorFARIAS, J. R. B.pt_BR
dc.contributor.authorLOUREIRO, R. S.pt_BR
dc.contributor.authorBISPO, C. C.pt_BR
dc.contributor.authorSAMPAIO, L.pt_BR
dc.date.accessioned2011-04-10T11:11:11Zpt_BR
dc.date.available2011-04-10T11:11:11Zpt_BR
dc.date.created2010-01-05pt_BR
dc.date.issued2009pt_BR
dc.identifier.citationPesquisa Agropecuária Brasileira, Brasília, DF, v. 44, n. 10, p. 1211-1218, out. 2009.pt_BR
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/579467pt_BR
dc.descriptionAbstract 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.pt_BR
dc.language.isoengeng
dc.rightsopenAccesseng
dc.subjectInterceptação da radiaçãopt_BR
dc.subjectRadiation interceptionpt_BR
dc.subjectRegião amazônicapt_BR
dc.subjectÍndice de área foliarpt_BR
dc.subjectSoybeanpt_BR
dc.titleSolar radiation use efficiency by soybean under field conditions in the amazon region.pt_BR
dc.typeArtigo de periódicopt_BR
dc.date.updated2017-10-31T11:11:11Zpt_BR
dc.subject.thesagroSojapt_BR
dc.subject.thesagroFisiologia vegetalpt_BR
dc.subject.thesagroÁrea foliarpt_BR
dc.subject.thesagroRadiação solarpt_BR
dc.subject.thesagroGlycine Maxpt_BR
dc.subject.nalthesaurusRadiation use efficiencypt_BR
dc.subject.nalthesaurusPlant physiologypt_BR
dc.subject.nalthesaurusLeaf area indexpt_BR
dc.subject.nalthesaurusAmazoniapt_BR
riaa.ainfo.id579467pt_BR
riaa.ainfo.lastupdate2017-10-31 -02:00:00pt_BR
dc.contributor.institutionPAULO 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.pt_BR
Aparece nas coleções:Artigo em periódico indexado (CNPSO)

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