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1. Identificação
Tipo de ReferênciaArtigo em Revista Científica (Journal Article)
Sitemtc-m12.sid.inpe.br
Código do Detentorisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Identificador6qtX3pFwXQZ3r59YD6/GPfqq
Repositóriosid.inpe.br/iris@1912/2005/07.20.09.01   (acesso restrito)
Última Atualização2015:09.16.13.56.14 (UTC) marciana
Repositório de Metadadossid.inpe.br/iris@1912/2005/07.20.09.01.45
Última Atualização dos Metadados2018:06.05.00.52.46 (UTC) administrator
Chave SecundáriaINPE-6415-PRE/2454
ISSN0034-4257
Rótulo7756
Chave de CitaçãoRudorffMulcDaugLee:1996:GrRaUs
TítuloGrowth, radiation use efficiency, and canopy reflectance of wheat and corn grown under elevated ozone and carbon dioxide atmospheres
Ano1996
MêsFeb.
Data de Acesso11 maio 2024
Tipo SecundárioPRE PI
Número de Arquivos1
Tamanho1013 KiB
2. Contextualização
Autor1 Rudorff, Bernardo Friedrich Theodor
2 Mulchi, Charles .
3 Daughtry, Craig S. T.
4 Lee, Edward H
Grupo1 DSR-INPE-MCT-BR
RevistaRemote Sensing of Environment
Volume55
Número2
Páginas163-173
Histórico (UTC)2008-06-09 19:16:42 :: administrator -> jefferson ::
2010-07-07 18:52:33 :: jefferson -> administrator :: 1996
2011-08-06 23:41:00 :: administrator -> marciana :: 1996
2011-10-31 11:26:26 :: marciana -> administrator :: 1996
2014-08-28 10:23:30 :: administrator -> marciana :: 1996
2015-09-16 13:56:14 :: marciana -> administrator :: 1996
2018-06-05 00:52:46 :: administrator -> marciana :: 1996
3. Conteúdo e estrutura
É a matriz ou uma cópia?é a matriz
Estágio do Conteúdoconcluido
Transferível1
Tipo do ConteúdoExternal Contribution
ResumoEstimates of increases in future agricultural production in response to increases in carbon dioxide (CO2)concentrations in the atmosphere are often based on the beneficial physiological effect of CO2 enrichment on plant growth, especially in C3 plants. However, these estimates fail to consider the negative impact of ozone (O3)air pollution on crop production. Increases in tropospheric concentrations of both gases, CO2 and O3 have been observed over the past century, and both are predicted to continue to increase at even higher rates in the near future to levels when they may have a significant impact on agricultural production. Field studies with wheat (Triticum aestivum L.)in 1991 and 1992, and corn (Zea mays L.)in 1991 were conducted using open-top chambers to mimic atmospheric concentrations of CO2 (~500 L CO2)and O3 (~40 nL L O3 above ambient air [O3]during 7 h day , 5 days week ) that are predicted to occur at the Earth's surface during the first half of the 21st century. Wheat and corn (C3 vs. C4)produced clearly different responses to CO2 enrichment, but similar responses to O3 exposure. In wheat, O3 exposure led to reduced grain yield, biomass, and radiation use efficiency (RUE, phytomass production per unit of energy received); in both years; but reduction in accumulated absorbed photosynthetically active radiation (AAPAR)was observed only in 1991. Conversely, CO2 enrichment produced greater grain yield, dry biomass, and RUE. With CO2 enrichment, the O3-induced stress to wheat plants was apparently ameliorated since responses were equivalent to the control group (low O3 and ambient CO2)for all variables. In contrast, corn demonstrated no benefit to CO2 enrichment for measured variables, and corn grain yield was the only parameter negatively influenced by O3 exposure that is attributed to O3-induced damage during the flowering process. Additionally, no treatment differences were observed for leaf area index (LAI)as determined nondestructively using the LICOR LAI-2000 Plant Canopy Analyzer. Also, treatment differences for normalized difference vegetation index (ND)were only observed for wheat plants from the high-O3 and ambient-CO2 treatment, at some growing stages. Otherwise, ND data were not helpful for identifying damage due to O3 fumigation or benefits due to CO2 enrichment. Significant interactive effects of CO2 vs. O3 were observed only for wheat grain yield in 1991 (p < 0.10), indicated that the detrimental effect of O3 air pollution was more than overcome under the CO2-enrichment environment.
ÁreaSRE
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Conteúdo da Pasta docacessar
Conteúdo da Pasta sourcenão têm arquivos
Conteúdo da Pasta agreementnão têm arquivos
4. Condições de acesso e uso
Arquivo Alvo1996_rudorff4.pdf
Grupo de Usuáriosadministrator
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Grupo de Leitoresadministrator
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Visibilidadeshown
Política de Arquivamentodenypublisher allowfinaldraft24
Permissão de Leituradeny from all and allow from 150.163
Permissão de Atualizaçãonão transferida
5. Fontes relacionadas
Unidades Imediatamente Superiores8JMKD3MGPCW/3ER446E
DivulgaçãoWEBSCI; PORTALCAPES; MGA; COMPENDEX.
Acervo Hospedeirosid.inpe.br/banon/2001/04.06.10.52
6. Notas
Campos Vaziosaffiliation alternatejournal archivist callnumber copyholder copyright creatorhistory descriptionlevel doi e-mailaddress electronicmailaddress format isbn keywords language lineage mark mirrorrepository nextedition notes orcid parameterlist parentrepositories previousedition previouslowerunit progress project resumeid rightsholder schedulinginformation secondarydate secondarymark session shorttitle sponsor subject tertiarymark tertiarytype typeofwork url versiontype
7. Controle da descrição
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