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Registro Completo |
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
05/09/2007 |
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Data da última atualização: |
21/07/2008 |
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Autoria: |
BORDIGNON, J. R. |
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Título: |
Soybean responses to atmospheric increases in carbon dioxide (CO2) and ozone (O3). |
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Ano de publicação: |
2006 |
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Fonte/Imprenta: |
2006. |
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Páginas: |
213 f. |
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Idioma: |
Inglês |
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Notas: |
Dissertation (Doctor in Philosophy in Food Science and Human Nutrition) - University of Illinois at Urbana-Champaing. |
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Conteúdo: |
Atmospheric concentration of carbon dioxide (CO) has been increasing steadily since the industrial revolution and is expected to double by the middle of this century. Ozone (03), a secondary air pollutant, has become an issue in the last decades for its damaging effects on humans as well on animaIs and plants. The effects of elevated carbon dioxide ([CO2] = 550 µmol mol -¹ ozone ([03] = 1.2 x ambient) and their combination were evaluated in three soybean cultivars from maturation group (MG) II (Corsoy-79, Dwight and Loda) and three cultivars from MG III (Pana, Pioneer 93B15 and Williams), using a FACE (Free Air Concentration Enrichment) facility (www.soyface.uiuc.edu). Elevated [CO2] caused an improvement in final plant height and yield components (number of nodes, pods and seeds per plant; seed volume and seed weight), while elevated [03] had an opposite effect. Plants grown under elevated [CO2] alone or in combination with elevated [03] experienced also a delay in senescence and seeds of Loda and Pana demonstrated seed chlorophyll retention at harvest. No changes in seed N or fatty acid content were found due to treatment; however,variation among the years of evaluation was observed. Seed size was strongly correlated to seed C content but not to seed N. Total seed isoflavone content response to treatments was cultivardependent, with elevated [CO2] causing an increase in Dwight and Loda and elevated [03] causing a decrease in Corsoy and Loda. Isoflavone concentration also varied among the years of evaluation, indicating that other environmental factors influenced plant responses. A reduction in seed Ca and Zn content due to elevated [CO2] and an increase due to elevated [03] was observed in most cultivars evaluated. Results presented aIs o demonstrate that elevated [CO2] mitigates the damages caused by elevated [03]. MenosAtmospheric concentration of carbon dioxide (CO) has been increasing steadily since the industrial revolution and is expected to double by the middle of this century. Ozone (03), a secondary air pollutant, has become an issue in the last decades for its damaging effects on humans as well on animaIs and plants. The effects of elevated carbon dioxide ([CO2] = 550 µmol mol -¹ ozone ([03] = 1.2 x ambient) and their combination were evaluated in three soybean cultivars from maturation group (MG) II (Corsoy-79, Dwight and Loda) and three cultivars from MG III (Pana, Pioneer 93B15 and Williams), using a FACE (Free Air Concentration Enrichment) facility (www.soyface.uiuc.edu). Elevated [CO2] caused an improvement in final plant height and yield components (number of nodes, pods and seeds per plant; seed volume and seed weight), while elevated [03] had an opposite effect. Plants grown under elevated [CO2] alone or in combination with elevated [03] experienced also a delay in senescence and seeds of Loda and Pana demonstrated seed chlorophyll retention at harvest. No changes in seed N or fatty acid content were found due to treatment; however,variation among the years of evaluation was observed. Seed size was strongly correlated to seed C content but not to seed N. Total seed isoflavone content response to treatments was cultivardependent, with elevated [CO2] causing an increase in Dwight and Loda and elevated [03] causing a decrease in Corsoy and Loda. Isoflavone concentration also v... Mostrar Tudo |
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Categoria do assunto: |
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Marc: |
LEADER 02307nam a2200133 a 4500
001 1454303
005 2008-07-21
008 2006 bl uuuu m 00u1 u #d
100 1 $aBORDIGNON, J. R.
245 $aSoybean responses to atmospheric increases in carbon dioxide (CO2) and ozone (O3).
260 $a2006.$c2006
300 $a213 f.
500 $aDissertation (Doctor in Philosophy in Food Science and Human Nutrition) - University of Illinois at Urbana-Champaing.
520 $aAtmospheric concentration of carbon dioxide (CO) has been increasing steadily since the industrial revolution and is expected to double by the middle of this century. Ozone (03), a secondary air pollutant, has become an issue in the last decades for its damaging effects on humans as well on animaIs and plants. The effects of elevated carbon dioxide ([CO2] = 550 µmol mol -¹ ozone ([03] = 1.2 x ambient) and their combination were evaluated in three soybean cultivars from maturation group (MG) II (Corsoy-79, Dwight and Loda) and three cultivars from MG III (Pana, Pioneer 93B15 and Williams), using a FACE (Free Air Concentration Enrichment) facility (www.soyface.uiuc.edu). Elevated [CO2] caused an improvement in final plant height and yield components (number of nodes, pods and seeds per plant; seed volume and seed weight), while elevated [03] had an opposite effect. Plants grown under elevated [CO2] alone or in combination with elevated [03] experienced also a delay in senescence and seeds of Loda and Pana demonstrated seed chlorophyll retention at harvest. No changes in seed N or fatty acid content were found due to treatment; however,variation among the years of evaluation was observed. Seed size was strongly correlated to seed C content but not to seed N. Total seed isoflavone content response to treatments was cultivardependent, with elevated [CO2] causing an increase in Dwight and Loda and elevated [03] causing a decrease in Corsoy and Loda. Isoflavone concentration also varied among the years of evaluation, indicating that other environmental factors influenced plant responses. A reduction in seed Ca and Zn content due to elevated [CO2] and an increase due to elevated [03] was observed in most cultivars evaluated. Results presented aIs o demonstrate that elevated [CO2] mitigates the damages caused by elevated [03].
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Registro original: |
Embrapa Soja (CNPSO) |
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Registro |
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Registro Completo
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
20/05/1993 |
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Data da última atualização: |
20/10/2015 |
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Autoria: |
CRUZ, E. R. da. |
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Afiliação: |
EMBRAPA-DDM. |
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Título: |
Possíveis áreas e formas de atuação das equipes de economia das unidades operacionais da EMBRAPA. |
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Ano de publicação: |
1976 |
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Fonte/Imprenta: |
Brasília, DF: EMBRAPA-DDM, 1976. |
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Páginas: |
4 p. |
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Idioma: |
Português |
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Notas: |
Trabalho apresentado no 1. Encontro de Pós-Graduados da EMBRAPA, Brasília, julho 1975. |
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Palavras-Chave: |
EMBRAPA. |
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Thesagro: |
Economia Agrícola. |
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Thesaurus NAL: |
agricultural economics. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/98107/1/Possiveis-areas-e-formas-de-atuacao.pdf
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Marc: |
LEADER 00544nam a2200157 a 4500
001 1095893
005 2015-10-20
008 1976 bl uuuu u0uu1 u #d
100 1 $aCRUZ, E. R. da
245 $aPossíveis áreas e formas de atuação das equipes de economia das unidades operacionais da EMBRAPA.
260 $aBrasília, DF: EMBRAPA-DDM$c1976
300 $a4 p.
500 $aTrabalho apresentado no 1. Encontro de Pós-Graduados da EMBRAPA, Brasília, julho 1975.
650 $aagricultural economics
650 $aEconomia Agrícola
653 $aEMBRAPA
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Embrapa Unidades Centrais (AI-SEDE) |
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