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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
15/06/1994 |
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Data da última atualização: |
08/04/2005 |
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Autoria: |
GUIMARÃES, C. M. |
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Título: |
Breeding and cultural practices for drought control in cowpea. |
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Ano de publicação: |
1988 |
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Fonte/Imprenta: |
In: WATT, E. E.; ARAÚJO, J. P. P. de. Cowpea research in Brazil. Brasília, DF: IITA: EMBRAPA, 1988. |
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Páginas: |
p. 117-130. |
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Idioma: |
Inglês |
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Conteúdo: |
Germ plasm evaluation; Cultural practices. |
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Palavras-Chave: |
Caupi. |
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Thesagro: |
Melhoramento; Pratica Cultural; Resistência; Seca; Vigna Unguiculata. |
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Thesaurus Nal: |
Brazil. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00652naa a2200217 a 4500
001 1195763
005 2005-04-08
008 1988 bl uuuu u00u1 u #d
100 1 $aGUIMARÃES, C. M.
245 $aBreeding and cultural practices for drought control in cowpea.
260 $c1988
300 $ap. 117-130.
520 $aGerm plasm evaluation; Cultural practices.
650 $aBrazil
650 $aMelhoramento
650 $aPratica Cultural
650 $aResistência
650 $aSeca
650 $aVigna Unguiculata
653 $aCaupi
773 $tIn: WATT, E. E.; ARAÚJO, J. P. P. de. Cowpea research in Brazil. Brasília, DF: IITA: EMBRAPA, 1988.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Pecuária Sudeste. Para informações adicionais entre em contato com cppse.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
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Data corrente: |
13/05/2022 |
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Data da última atualização: |
10/03/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
AMARAL, G. C.; PEZZOPANE, J. E. M.; NÓIA JÚNIOR, R. DE S.; FONSECA, M. D. S.; FERNÁNDEZ MARTÍNEZ, M.; GOMES, V. DE O.; TOLEDO, J. V.; PEZZOPANE, J. R. M.; TAPIAS MARTÍN, R. |
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Afiliação: |
GENILDA CANUTO AMARAL, Federal University of Espírito Santo; JOSÉ EDUARDO MACEDO PEZZOPANE, Federal University of Espírito Santo; ROGÉRIO DE SOUZA NÓIA JÚNIOR, Technical University of Munich; MARIANA DUARTE SILVA FONSECA, Federal University of Espírito Santo; MANUEL FERNÁNDEZ MARTÍNEZ, University of Huelva; VANESSA DE OLIVEIRA GOMES, Federal University of Espírito Santo; JOÃO VITOR TOLEDO, Federal University of Espírito Santo; JOSE RICARDO MACEDO PEZZOPANE, CPPSE; RAÚL TAPIAS MARTÍN, University of Huelva. |
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Título: |
Climate change and the growth of Amazonian species seedlings: an ecophysiological approach to Euterpe oleracea. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
New Forests, v. 54, p. 269-287, 2023. |
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DOI: |
https://doi.org/10.1007/s11056-022-09921-1 |
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Idioma: |
Inglês |
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Conteúdo: |
Climate change threatens many native species from the Amazon Forest. Among the endangered species is the Açaí (Euterpe oleracea), which is a species with great national and international interest, due to the nutritional benefits and medicinal properties of its fruits. However, there is still no information on the ecophysiological responses of Açaí to climate change. Thus, the objective of this work was to evaluate the effect of increased temperature and CO2 concentration change on the ecophysiology of Açaí seedlings. To do so, Açaí seedlings were subjected, for 90 days, to three different climatic scenarios: current Amazon; RCP4.5 (current average temperature in the Amazon?+?2.5 °C and 538 ppm of carbon dioxide concentration i.e. CO2); and RCP8.5 (+?4.5 °C and 936 ppm of CO2 concentration). In addition, two irrigation levels were applied within each climatic scenario: seedlings maintained at 90% (not stressed) and 40% (stressed) of the water holding capacity of the substrate. Gas exchange, water status, fluorescence parameters, enzymatic antioxidants activity and dry matter production were evaluated. High CO2 concentration enhanced Açaí gas exchange (increasing CO2 assimilation), regardless of substrate water availability and temperature. However, high temperature and high vapor-pressure deficit reduced quantum yield and increased the minimum fluorescence and enzymatic antioxidants activity. With that, Açaí seedlings did not convert the additional assimilated carbon (due to higher CO2 concentration) into biomass, showing decreased total dry mass accumulation for RCP4.5 and RCP8.5 climate scenarios. Our results indicated that the positive impacts of increased CO2 concentration to gas exchange may not offset the negative impacts of increased air temperature and VPD to Açaí growth. MenosClimate change threatens many native species from the Amazon Forest. Among the endangered species is the Açaí (Euterpe oleracea), which is a species with great national and international interest, due to the nutritional benefits and medicinal properties of its fruits. However, there is still no information on the ecophysiological responses of Açaí to climate change. Thus, the objective of this work was to evaluate the effect of increased temperature and CO2 concentration change on the ecophysiology of Açaí seedlings. To do so, Açaí seedlings were subjected, for 90 days, to three different climatic scenarios: current Amazon; RCP4.5 (current average temperature in the Amazon?+?2.5 °C and 538 ppm of carbon dioxide concentration i.e. CO2); and RCP8.5 (+?4.5 °C and 936 ppm of CO2 concentration). In addition, two irrigation levels were applied within each climatic scenario: seedlings maintained at 90% (not stressed) and 40% (stressed) of the water holding capacity of the substrate. Gas exchange, water status, fluorescence parameters, enzymatic antioxidants activity and dry matter production were evaluated. High CO2 concentration enhanced Açaí gas exchange (increasing CO2 assimilation), regardless of substrate water availability and temperature. However, high temperature and high vapor-pressure deficit reduced quantum yield and increased the minimum fluorescence and enzymatic antioxidants activity. With that, Açaí seedlings did not convert the additional assimilated carbon (due to ... Mostrar Tudo |
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Palavras-Chave: |
Amazon; High CO2. |
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Thesagro: |
Açaí. |
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Thesaurus NAL: |
Gas exchange; Temperature; Water stress. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 02725naa a2200301 a 4500
001 2142929
005 2023-03-10
008 2023 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1007/s11056-022-09921-1$2DOI
100 1 $aAMARAL, G. C.
245 $aClimate change and the growth of Amazonian species seedlings$ban ecophysiological approach to Euterpe oleracea.$h[electronic resource]
260 $c2023
520 $aClimate change threatens many native species from the Amazon Forest. Among the endangered species is the Açaí (Euterpe oleracea), which is a species with great national and international interest, due to the nutritional benefits and medicinal properties of its fruits. However, there is still no information on the ecophysiological responses of Açaí to climate change. Thus, the objective of this work was to evaluate the effect of increased temperature and CO2 concentration change on the ecophysiology of Açaí seedlings. To do so, Açaí seedlings were subjected, for 90 days, to three different climatic scenarios: current Amazon; RCP4.5 (current average temperature in the Amazon?+?2.5 °C and 538 ppm of carbon dioxide concentration i.e. CO2); and RCP8.5 (+?4.5 °C and 936 ppm of CO2 concentration). In addition, two irrigation levels were applied within each climatic scenario: seedlings maintained at 90% (not stressed) and 40% (stressed) of the water holding capacity of the substrate. Gas exchange, water status, fluorescence parameters, enzymatic antioxidants activity and dry matter production were evaluated. High CO2 concentration enhanced Açaí gas exchange (increasing CO2 assimilation), regardless of substrate water availability and temperature. However, high temperature and high vapor-pressure deficit reduced quantum yield and increased the minimum fluorescence and enzymatic antioxidants activity. With that, Açaí seedlings did not convert the additional assimilated carbon (due to higher CO2 concentration) into biomass, showing decreased total dry mass accumulation for RCP4.5 and RCP8.5 climate scenarios. Our results indicated that the positive impacts of increased CO2 concentration to gas exchange may not offset the negative impacts of increased air temperature and VPD to Açaí growth.
650 $aGas exchange
650 $aTemperature
650 $aWater stress
650 $aAçaí
653 $aAmazon
653 $aHigh CO2
700 1 $aPEZZOPANE, J. E. M.
700 1 $aNÓIA JÚNIOR, R. DE S.
700 1 $aFONSECA, M. D. S.
700 1 $aFERNÁNDEZ MARTÍNEZ, M.
700 1 $aGOMES, V. DE O.
700 1 $aTOLEDO, J. V.
700 1 $aPEZZOPANE, J. R. M.
700 1 $aTAPIAS MARTÍN, R.
773 $tNew Forests$gv. 54, p. 269-287, 2023.
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