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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
30/09/2014 |
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Data da última atualização: |
19/10/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ZERI, M.; SÁ, L. D. A.; MANZI, A. O.; ARAUJO, A. C.; AGUIAR, R. G.; RANDOW, C. von; SAMPAIO, G.; CARDOSO, F. L.; NOBRE, C. A. |
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Afiliação: |
MARCELO ZERI, INPE; LEONARDO D. A. SÁ, INPE; ANTONIO O. MANZI, INPA; ALESSANDRO CARIOCA DE ARAUJO, CPATU; RENATA G. AGUIAR, UFRO; CELSO VON RANDOW, INPE; GILVAN SAMPAIO, INPE; FERNANDO L. CARDOSO, UFRO; CARLOS A. NOBRE, Secretaria de Políticas e Programas de Pesquisa e Desenvolvimento, Ministério da Ciência, Tecnologia e Inovação. |
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Título: |
Variability of carbon and water fluxes following climate extremes over a tropical forest in Southwestern Amazonia. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Plos One, v. 9, n. 2, e88130, Feb. 2014. |
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DOI: |
10.1371/journal.pone.0088130 |
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Idioma: |
Inglês |
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Conteúdo: |
The carbon and water cycles for a southwestern Amazonian forest site were investigated using the longest time series of fluxes of CO2 and water vapor ever reported for this site. The period from 2004 to 2010 included two severe droughts (2005 and 2010) and a flooding year (2009). The effects of such climate extremes were detected in annual sums of fluxes as well as in other components of the carbon and water cycles, such as gross primary production and water use efficiency. Gap-filling and flux-partitioning were applied in order to fill gaps due to missing data, and errors analysis made it possible to infer the uncertainty on the carbon balance. Overall, the site was found to have a net carbon uptake of ≈5 t C ha−1 year−1, but the effects of the drought of 2005 were still noticed in 2006, when the climate disturbance caused the site to become a net source of carbon to the atmosphere. Different regions of the Amazon forest might respond differently to climate extremes due to differences in dry season length, annual precipitation, species compositions, albedo and soil type. Longer time series of fluxes measured over several locations are required to better characterize the effects of climate anomalies on the carbon and water balances for the whole Amazon region. Such valuable datasets can also be used to calibrate biogeochemical models and infer on future scenarios of the Amazon forest carbon balance under the influence of climate change. |
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Thesagro: |
Água; Carbono; Clima; Floresta Tropical. |
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Thesaurus Nal: |
Amazonia. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/109290/1/journal.pone.pdf
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Marc: |
LEADER 02289naa a2200289 a 4500
001 1996154
005 2022-10-19
008 2014 bl uuuu u00u1 u #d
024 7 $a10.1371/journal.pone.0088130$2DOI
100 1 $aZERI, M.
245 $aVariability of carbon and water fluxes following climate extremes over a tropical forest in Southwestern Amazonia.$h[electronic resource]
260 $c2014
520 $aThe carbon and water cycles for a southwestern Amazonian forest site were investigated using the longest time series of fluxes of CO2 and water vapor ever reported for this site. The period from 2004 to 2010 included two severe droughts (2005 and 2010) and a flooding year (2009). The effects of such climate extremes were detected in annual sums of fluxes as well as in other components of the carbon and water cycles, such as gross primary production and water use efficiency. Gap-filling and flux-partitioning were applied in order to fill gaps due to missing data, and errors analysis made it possible to infer the uncertainty on the carbon balance. Overall, the site was found to have a net carbon uptake of ≈5 t C ha−1 year−1, but the effects of the drought of 2005 were still noticed in 2006, when the climate disturbance caused the site to become a net source of carbon to the atmosphere. Different regions of the Amazon forest might respond differently to climate extremes due to differences in dry season length, annual precipitation, species compositions, albedo and soil type. Longer time series of fluxes measured over several locations are required to better characterize the effects of climate anomalies on the carbon and water balances for the whole Amazon region. Such valuable datasets can also be used to calibrate biogeochemical models and infer on future scenarios of the Amazon forest carbon balance under the influence of climate change.
650 $aAmazonia
650 $aÁgua
650 $aCarbono
650 $aClima
650 $aFloresta Tropical
700 1 $aSÁ, L. D. A.
700 1 $aMANZI, A. O.
700 1 $aARAUJO, A. C.
700 1 $aAGUIAR, R. G.
700 1 $aRANDOW, C. von
700 1 $aSAMPAIO, G.
700 1 $aCARDOSO, F. L.
700 1 $aNOBRE, C. A.
773 $tPlos One$gv. 9, n. 2, e88130, Feb. 2014.
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Registro original: |
Embrapa Amazônia Oriental (CPATU) |
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Registro Completo
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Biblioteca(s): |
Embrapa Algodão. |
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Data corrente: |
02/03/2017 |
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Data da última atualização: |
02/03/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
ROCHA, V. S.; COSTA, A. G. F.; TROVÃO, D. M. B. M.; ZONTA, J. H.; SOFIATTI, V.; MACIEL, C. D. G.; ALMEIDA, H. S. A. |
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Afiliação: |
VIVIANE S. ROCHA, UNIVERSIDADE ESTADUAL DA PARAÍBA; AUGUSTO GUERREIRO FONTOURA COSTA, CNPA; UNIVERSIDADE ESTADUAL DA PARAÍBA; JOAO HENRIQUE ZONTA, CNPA; VALDINEI SOFIATTI, CNPA; UNIVERSIDADE ESTADUAL DO CENTRO-OESTE; UNIVERSIDADE FEDERAL DA PARAÍBA. |
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Título: |
Management of volunteer castor bean in the Glyphosate-resistant soybean crop |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Planta Daninha, Viçosa, MG, v. 34, n. 3, p. 545-553, 2016. |
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Idioma: |
Inglês |
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Conteúdo: |
The goal of this study was to evaluate the management of volunteer castor bean with herbicide applications used in pre and post-seeding of soybean crop resistant to glyphosate. Two experiments were conducted in a greenhouse in a completely randomized design with three replications. The first experiment corresponded to applications of desiccation with treatments: glyphosate (1,080 g ha-1); glyphosate + 2,4-D (1,080 + 670 g ha-1); glyphosate + carfentrazone-ethtyl (1,080 + 20 g ha-1); glyphosate + flumioxazin (1,080 + 25 g ha-1); glyphosate + saflufenacil (1,080 + 35 g ha-1); glyphosate + chlorimuron-ethyl (1,080 + 12.5 g ha-1); diuron + paraquat (300 + 600 g ha-1); and the control without application. In the second experiment, the treatments corresponded to doses of 0, 90, 180, 360, 720, 1,440, 2,880 and 5,760 g ha-1 of glyphosate for applications in post-emergence in soybean RR. The applications took place when the castor bean plant had four to six true leaves. The evaluations done in both experiments were: control and plant height at 7, 14 and 21 days after application (DAA); and stem diameter, leaf area, root volume, dry mass of shoots and roots at 21 DAA. The treatments with diuron + paraquat and glyphosate associated with 2,4-D, carfentrazoneethyl, flumioxazin or saflufenacil are more efficient for castor bean control in desiccation in pre-seeding of soybean. Glyphosate doses from 720 g ha-1 are effective to control castor bean in post-emergence of the glyphosate-resistant soybean crop. MenosThe goal of this study was to evaluate the management of volunteer castor bean with herbicide applications used in pre and post-seeding of soybean crop resistant to glyphosate. Two experiments were conducted in a greenhouse in a completely randomized design with three replications. The first experiment corresponded to applications of desiccation with treatments: glyphosate (1,080 g ha-1); glyphosate + 2,4-D (1,080 + 670 g ha-1); glyphosate + carfentrazone-ethtyl (1,080 + 20 g ha-1); glyphosate + flumioxazin (1,080 + 25 g ha-1); glyphosate + saflufenacil (1,080 + 35 g ha-1); glyphosate + chlorimuron-ethyl (1,080 + 12.5 g ha-1); diuron + paraquat (300 + 600 g ha-1); and the control without application. In the second experiment, the treatments corresponded to doses of 0, 90, 180, 360, 720, 1,440, 2,880 and 5,760 g ha-1 of glyphosate for applications in post-emergence in soybean RR. The applications took place when the castor bean plant had four to six true leaves. The evaluations done in both experiments were: control and plant height at 7, 14 and 21 days after application (DAA); and stem diameter, leaf area, root volume, dry mass of shoots and roots at 21 DAA. The treatments with diuron + paraquat and glyphosate associated with 2,4-D, carfentrazoneethyl, flumioxazin or saflufenacil are more efficient for castor bean control in desiccation in pre-seeding of soybean. Glyphosate doses from 720 g ha-1 are effective to control castor bean in post-emergence of the glyphosate-resista... Mostrar Tudo |
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Thesagro: |
Glycine max; Herbicida; Ricinus communis. |
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Thesaurus NAL: |
Herbicides. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/156855/1/Management-of-volunteer-castor-bean.pdf
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Marc: |
LEADER 02204naa a2200241 a 4500
001 2065768
005 2017-03-02
008 2016 bl uuuu u00u1 u #d
100 1 $aROCHA, V. S.
245 $aManagement of volunteer castor bean in the Glyphosate-resistant soybean crop$h[electronic resource]
260 $c2016
520 $aThe goal of this study was to evaluate the management of volunteer castor bean with herbicide applications used in pre and post-seeding of soybean crop resistant to glyphosate. Two experiments were conducted in a greenhouse in a completely randomized design with three replications. The first experiment corresponded to applications of desiccation with treatments: glyphosate (1,080 g ha-1); glyphosate + 2,4-D (1,080 + 670 g ha-1); glyphosate + carfentrazone-ethtyl (1,080 + 20 g ha-1); glyphosate + flumioxazin (1,080 + 25 g ha-1); glyphosate + saflufenacil (1,080 + 35 g ha-1); glyphosate + chlorimuron-ethyl (1,080 + 12.5 g ha-1); diuron + paraquat (300 + 600 g ha-1); and the control without application. In the second experiment, the treatments corresponded to doses of 0, 90, 180, 360, 720, 1,440, 2,880 and 5,760 g ha-1 of glyphosate for applications in post-emergence in soybean RR. The applications took place when the castor bean plant had four to six true leaves. The evaluations done in both experiments were: control and plant height at 7, 14 and 21 days after application (DAA); and stem diameter, leaf area, root volume, dry mass of shoots and roots at 21 DAA. The treatments with diuron + paraquat and glyphosate associated with 2,4-D, carfentrazoneethyl, flumioxazin or saflufenacil are more efficient for castor bean control in desiccation in pre-seeding of soybean. Glyphosate doses from 720 g ha-1 are effective to control castor bean in post-emergence of the glyphosate-resistant soybean crop.
650 $aHerbicides
650 $aGlycine max
650 $aHerbicida
650 $aRicinus communis
700 1 $aCOSTA, A. G. F.
700 1 $aTROVÃO, D. M. B. M.
700 1 $aZONTA, J. H.
700 1 $aSOFIATTI, V.
700 1 $aMACIEL, C. D. G.
700 1 $aALMEIDA, H. S. A.
773 $tPlanta Daninha, Viçosa, MG$gv. 34, n. 3, p. 545-553, 2016.
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Embrapa Algodão (CNPA) |
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