| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Soja. |
|
Data corrente: |
23/09/2011 |
|
Data da última atualização: |
28/02/2013 |
|
Tipo da produção científica: |
Capítulo em Livro Técnico-Científico |
|
Autoria: |
NEPOMUCENO, A. L.; FUGANTI, R.; KANAMORI, N.; PEREIRA, S. dos S.; RODRIGUES, F. A.; NEUMAIER, N.; FARIAS, J. R. B.; MARCELINO, F. C. |
|
Afiliação: |
ALEXANDRE LIMA NEPOMUCENO, SRI; RENATA FUGANTI, CNPSo; NORIHITO KANAMORI, JIRCAS; SELMA DOS SANTOS PEREIRA, UNESP Jaboticabal. In memoriam.; FABIANA APARECIDA RODRIGUES, CNPSo; NORMAN NEUMAIER, CNPSO; JOSE RENATO BOUCAS FARIAS, CNPSO; FRANCISMAR CORREA MARCELINO, CNPSO. |
|
Título: |
Estratégias de engenharia genética para tolerância à seca em plantas através da expressão de fatores de transcrição. |
|
Ano de publicação: |
2011 |
|
Fonte/Imprenta: |
In: SIMPÓSIO SOBRE TOLERÂNCIA À DEFICIÊNCIA HÍDRICA EM PLANTAS: ADAPTANDO AS CULTURAS AO CLIMA DO FUTURO, 2010, Goiânia. Trabalhos apresentados... Santo Antônio de Goiás: Embrapa Arroz e Feijão, 2011. p. 103-109. (Embrapa Arroz e Feijão. Documentos, 265). |
|
Páginas: |
p. 103-109. |
|
Idioma: |
Português |
|
Palavras-Chave: |
Proteínas DREB. |
|
Thesagro: |
Resistência a seca. |
|
Thesaurus Nal: |
Drought tolerance. |
|
Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/42478/1/nepo103-109.pdf
|
|
Marc: |
LEADER 00935nam a2200229 a 4500
001 1901269
005 2013-02-28
008 2011 bl uuuu u00u1 u #d
100 1 $aNEPOMUCENO, A. L.
245 $aEstratégias de engenharia genética para tolerância à seca em plantas através da expressão de fatores de transcrição.
260 $aIn: SIMPÓSIO SOBRE TOLERÂNCIA À DEFICIÊNCIA HÍDRICA EM PLANTAS: ADAPTANDO AS CULTURAS AO CLIMA DO FUTURO, 2010, Goiânia. Trabalhos apresentados... Santo Antônio de Goiás: Embrapa Arroz e Feijão, 2011. p. 103-109. (Embrapa Arroz e Feijão. Documentos, 265).$c2011
300 $ap. 103-109.
650 $aDrought tolerance
650 $aResistência a seca
653 $aProteínas DREB
700 1 $aFUGANTI, R.
700 1 $aKANAMORI, N.
700 1 $aPEREIRA, S. dos S.
700 1 $aRODRIGUES, F. A.
700 1 $aNEUMAIER, N.
700 1 $aFARIAS, J. R. B.
700 1 $aMARCELINO, F. C.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Soja (CNPSO) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Florestas. Para informações adicionais entre em contato com cnpf.biblioteca@embrapa.br. |
Registro Completo
|
Biblioteca(s): |
Embrapa Florestas. |
|
Data corrente: |
08/02/2013 |
|
Data da última atualização: |
19/02/2015 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Circulação/Nível: |
A - 1 |
|
Autoria: |
PIVA, J. T.; DIECKOW, J.; BAYER, C.; ZANATTA, J. A.; MORAES, A. de; PAULETTI, V.; TOMAZI, M.; PERGHER, M. |
|
Afiliação: |
Jonatas Thiago Piva, UFPR; Jeferson Dieckow, UFPR; Cimélio Bayer, UFRGS; JOSILEIA ACORDI ZANATTA, CNPF; Anibal de Moraes, UFPR; Volnei Pauletti, Fundação ABC para Assistência e Divulgação Técnica Agropecuária; MICHELY TOMAZI, CPAO; Maico Pergher, UFPR. |
|
Título: |
No-till reduces global warming potential in a subtropical Ferralsol. |
|
Ano de publicação: |
2012 |
|
Fonte/Imprenta: |
Plant and Soil, v. 361, p. 359-373, 2012. |
|
Idioma: |
Inglês |
|
Conteúdo: |
Aims For tropical and subtropical soils, information is scarce regarding the global warming potential (GWP) of no-till (NT) agriculture systems. Soil organic carbon (OC) sequestration is promoted by NT agriculture, but this may be offset by increased nitrous oxide (N2O) emissions. We assessed the GWP of a NT as compared to conventional tillage (CT) in a subtropical Brazilian Ferralsol. Methods From September 2008 to September 2009 we used static chambers and chromatographic analyses to assess N2O and methane (CH4) soil fluxes in an area previously used for 3–4 years as a fieldexperiment. The winter cover crop was ryegrass (Lolium multiflorum Lam.) while in summer it was silage maize (Zea mays L.). Results The accumulated N2O emission for NT was about half that of CT (1.26 vs 2.42 kg N ha?1 year?1, P00.06). Emission peaks for N2O occurred for a month after CT, presumably induced by mineralization of residual nitrogen. In both systems, the highest N2O flux occurred after sidedressing maize with inorganic nitrogen, although the flux was lower in NT than CT (132 vs 367 ?g N m?2 h?1, P00.05), possibly because some of the sidedressed nitrogen was immobilized by ryegrass residues on the surface of the NT soil. Neither water-filled pore space (WFPS) nor inorganic nitrogen (NH4+ and NO3?) correlated with N2O fluxes, although at some specific periods relationships were observed with inorganic nitrogen. Soils subjected to CT or NT both acted as CH4 sinks during most of the experiment, although a CH4 peak in May (autumn) led to overall CH4 emissions of 1.15 kg CH4-C ha?1 year?1 for CT and 1.08 kg CH4-C ha?1 year?1 for NT (P00.90). The OC stock in the 0–20 cm soil layer was slightly higher for NT than for CT (67.20 vs 66.49 Mg ha?1, P00.36). In the 0–100 cm layer, the OC stock was significantly higher for NT as compared to CT (234.61 vs 231.95 Mg ha?1, P00.01), indicating that NT resulted in the sequestration of OC at a rate of 0.76 Mg ha?1 year?1. The CO2 equivalent cost of agronomic practices was similar for CT (1.72 Mg CO2eq ha?1 year?1) andNT(1.62MgCO2eq ha?1 year?1). However, NT reduced the GWP relative to CT (?0.55 vs 2.90 Mg CO2eq ha?1 year?1), with the difference of ?3.45 Mg CO2eq ha?1 year?1 (negative value implies mitigation) being driven mainly by OC sequestration. The greenhouse gas intensity (GHGI, equivalent to GWP/silage yield) was lower for NT than CT (?31.7 vs 171.1 kg CO2eq Mg?1 for silage maize). Conclusion As compared to CT, greenhouse gas emissions from a subtropical soil can be mitigated by NT by lowering N2O emissions and, principally, sequestration of CO2-C. MenosAims For tropical and subtropical soils, information is scarce regarding the global warming potential (GWP) of no-till (NT) agriculture systems. Soil organic carbon (OC) sequestration is promoted by NT agriculture, but this may be offset by increased nitrous oxide (N2O) emissions. We assessed the GWP of a NT as compared to conventional tillage (CT) in a subtropical Brazilian Ferralsol. Methods From September 2008 to September 2009 we used static chambers and chromatographic analyses to assess N2O and methane (CH4) soil fluxes in an area previously used for 3–4 years as a fieldexperiment. The winter cover crop was ryegrass (Lolium multiflorum Lam.) while in summer it was silage maize (Zea mays L.). Results The accumulated N2O emission for NT was about half that of CT (1.26 vs 2.42 kg N ha?1 year?1, P00.06). Emission peaks for N2O occurred for a month after CT, presumably induced by mineralization of residual nitrogen. In both systems, the highest N2O flux occurred after sidedressing maize with inorganic nitrogen, although the flux was lower in NT than CT (132 vs 367 ?g N m?2 h?1, P00.05), possibly because some of the sidedressed nitrogen was immobilized by ryegrass residues on the surface of the NT soil. Neither water-filled pore space (WFPS) nor inorganic nitrogen (NH4+ and NO3?) correlated with N2O fluxes, although at some specific periods relationships were observed with inorganic nitrogen. Soils subjected to CT or NT both acted as CH4 sinks during most of the experiment, ... Mostrar Tudo |
|
Palavras-Chave: |
Aquecimento global. |
|
Thesagro: |
Plantio Direto; Solo. |
|
Categoria do assunto: |
-- |
|
Marc: |
LEADER 03261naa a2200241 a 4500
001 1948897
005 2015-02-19
008 2012 bl uuuu u00u1 u #d
100 1 $aPIVA, J. T.
245 $aNo-till reduces global warming potential in a subtropical Ferralsol.$h[electronic resource]
260 $c2012
520 $aAims For tropical and subtropical soils, information is scarce regarding the global warming potential (GWP) of no-till (NT) agriculture systems. Soil organic carbon (OC) sequestration is promoted by NT agriculture, but this may be offset by increased nitrous oxide (N2O) emissions. We assessed the GWP of a NT as compared to conventional tillage (CT) in a subtropical Brazilian Ferralsol. Methods From September 2008 to September 2009 we used static chambers and chromatographic analyses to assess N2O and methane (CH4) soil fluxes in an area previously used for 3–4 years as a fieldexperiment. The winter cover crop was ryegrass (Lolium multiflorum Lam.) while in summer it was silage maize (Zea mays L.). Results The accumulated N2O emission for NT was about half that of CT (1.26 vs 2.42 kg N ha?1 year?1, P00.06). Emission peaks for N2O occurred for a month after CT, presumably induced by mineralization of residual nitrogen. In both systems, the highest N2O flux occurred after sidedressing maize with inorganic nitrogen, although the flux was lower in NT than CT (132 vs 367 ?g N m?2 h?1, P00.05), possibly because some of the sidedressed nitrogen was immobilized by ryegrass residues on the surface of the NT soil. Neither water-filled pore space (WFPS) nor inorganic nitrogen (NH4+ and NO3?) correlated with N2O fluxes, although at some specific periods relationships were observed with inorganic nitrogen. Soils subjected to CT or NT both acted as CH4 sinks during most of the experiment, although a CH4 peak in May (autumn) led to overall CH4 emissions of 1.15 kg CH4-C ha?1 year?1 for CT and 1.08 kg CH4-C ha?1 year?1 for NT (P00.90). The OC stock in the 0–20 cm soil layer was slightly higher for NT than for CT (67.20 vs 66.49 Mg ha?1, P00.36). In the 0–100 cm layer, the OC stock was significantly higher for NT as compared to CT (234.61 vs 231.95 Mg ha?1, P00.01), indicating that NT resulted in the sequestration of OC at a rate of 0.76 Mg ha?1 year?1. The CO2 equivalent cost of agronomic practices was similar for CT (1.72 Mg CO2eq ha?1 year?1) andNT(1.62MgCO2eq ha?1 year?1). However, NT reduced the GWP relative to CT (?0.55 vs 2.90 Mg CO2eq ha?1 year?1), with the difference of ?3.45 Mg CO2eq ha?1 year?1 (negative value implies mitigation) being driven mainly by OC sequestration. The greenhouse gas intensity (GHGI, equivalent to GWP/silage yield) was lower for NT than CT (?31.7 vs 171.1 kg CO2eq Mg?1 for silage maize). Conclusion As compared to CT, greenhouse gas emissions from a subtropical soil can be mitigated by NT by lowering N2O emissions and, principally, sequestration of CO2-C.
650 $aPlantio Direto
650 $aSolo
653 $aAquecimento global
700 1 $aDIECKOW, J.
700 1 $aBAYER, C.
700 1 $aZANATTA, J. A.
700 1 $aMORAES, A. de
700 1 $aPAULETTI, V.
700 1 $aTOMAZI, M.
700 1 $aPERGHER, M.
773 $tPlant and Soil$gv. 361, p. 359-373, 2012.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Florestas (CNPF) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Expressão de busca inválida. Verifique!!! |
|
|
