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Registro Completo |
Biblioteca(s): |
Biblioteca Rui Tendinha. |
Data corrente: |
12/02/2016 |
Data da última atualização: |
01/04/2016 |
Autoria: |
CARVALHO, C. H. S. de.; BRAGANÇA, S. M. |
Afiliação: |
Carlos Henrique Siqueira de Carvalho, EMCAPA; Scheilla Marina Bragança, EMCAPA. |
Título: |
Seleção de clones de café 'Conilon' (Coffea canephora) para o Estado do Espírito Santo. |
Ano de publicação: |
1990 |
Fonte/Imprenta: |
PESQUISA EM ANDAMENTO, n. 56, p. 1-4, outubro 1990. |
Série: |
(Emcapa. Pesquisa em Andamento, 56) |
ISSN: |
0101-5834 |
Idioma: |
Português |
Palavras-Chave: |
Café conilon; Coffea canaphora; Espírito Santo. |
Categoria do assunto: |
-- |
URL: |
http://biblioteca.incaper.es.gov.br/digital/bitstream/item/1183/1/BRT-pesquisaemandamento-n56.pdf
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Marc: |
LEADER 00587naa a2200181 a 4500 001 1009606 005 2016-04-01 008 1990 bl uuuu u00u1 u #d 022 $a0101-5834 100 1 $aCARVALHO, C. H. S. de. 245 $aSeleção de clones de café 'Conilon' (Coffea canephora) para o Estado do Espírito Santo.$h[electronic resource] 260 $c1990 490 $a(Emcapa. Pesquisa em Andamento, 56) 653 $aCafé conilon 653 $aCoffea canaphora 653 $aEspírito Santo 700 1 $aBRAGANÇA, S. M. 773 $tPESQUISA EM ANDAMENTO$gn. 56, p. 1-4, outubro 1990.
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Biblioteca Rui Tendinha (BRT) |
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| Acesso ao texto completo restrito à biblioteca da Biblioteca Rui Tendinha. Para informações adicionais entre em contato com biblioteca@incaper.es.gov.br. |
Registro Completo |
Biblioteca(s): |
Biblioteca Rui Tendinha. |
Data corrente: |
13/01/2015 |
Data da última atualização: |
13/01/2015 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
- - - |
Autoria: |
PRAXEDES, S. C.; DAMATTA, F. M.; LOUREIRO, M. E.; FERRÃO, M. A. G.; CORDEIRO, A. T. |
Afiliação: |
Sidney C. Praxedes; Fábio M. DaMatta; Marcelo E. Loureiro; Maria Amélia Gava Ferrão, Incaper/Embrapa Café; Antônio T. Cordeiro. |
Título: |
Effects of long-term soil drought on photosynthesis and carbohydrate metabolism in mature robusta coffee (Coffea canephora Pierre var. kouillou) leaves. |
Ano de publicação: |
2006 |
Fonte/Imprenta: |
Environmental and Experimental Botany, v. 56, n. 3, p. 263-273, 2006, |
Idioma: |
Inglês |
Conteúdo: |
Four clones of robusta coffee representing drought-tolerant (14 and 120) and drought-sensitive (46 and 109A) genotypes were submitted to a slowly imposed water deficit. Sampling and measurements were performed when predawn leaf water potential (Ψpd) approximately −2.0 and −3.0 MPa was reached. Regardless of the clone evaluated, drought led to sharper decreases in stomatal conductance than in photosynthesis, which was accompanied by significant declines in internal to ambient CO2 concentration ratio. Little or no effect of drought on chlorophyll a fluorescence parameters was observed. Regardless of the stress intensity, starch decreased remarkably. This was not accompanied by significant changes in concentration of soluble sugars, with the exception of clone 120 in which a rise in sucrose and hexose concentrations was found when Ψpd reached −3.0 MPa. At Ψpd = −2.0 MPa, activity of acid invertase increased only in clone 120; at Ψpd = −3.0 MPa, it increased in clones 14, 46 and 120, while activity of sucrose synthase declined, but only in clone 109A. Drought-induced decrease in ADP-glucose pyrophosphorylase activity was found only in clones 14 and 46, irrespective of stress intensity. At Ψpd = −3.0 MPa, maximal extractable and activation state of sucrose-phosphate synthase (SPS) decreased in all clones with the exception of clone 120, in which SPS activity was maintained in parallel to a rising activity of fructose-1,6-bisphosphatase. Changes in SPS activity could neither be explained by the CO2 decrease linked to stomatal closure nor by differences in leaf water status. MenosFour clones of robusta coffee representing drought-tolerant (14 and 120) and drought-sensitive (46 and 109A) genotypes were submitted to a slowly imposed water deficit. Sampling and measurements were performed when predawn leaf water potential (Ψpd) approximately −2.0 and −3.0 MPa was reached. Regardless of the clone evaluated, drought led to sharper decreases in stomatal conductance than in photosynthesis, which was accompanied by significant declines in internal to ambient CO2 concentration ratio. Little or no effect of drought on chlorophyll a fluorescence parameters was observed. Regardless of the stress intensity, starch decreased remarkably. This was not accompanied by significant changes in concentration of soluble sugars, with the exception of clone 120 in which a rise in sucrose and hexose concentrations was found when Ψpd reached −3.0 MPa. At Ψpd = −2.0 MPa, activity of acid invertase increased only in clone 120; at Ψpd = −3.0 MPa, it increased in clones 14, 46 and 120, while activity of sucrose synthase declined, but only in clone 109A. Drought-induced decrease in ADP-glucose pyrophosphorylase activity was found only in clones 14 and 46, irrespective of stress intensity. At Ψpd = −3.0 MPa, maximal extractable and activation state of sucrose-phosphate synthase (SPS) decreased in all clones with the exception of clone 120, in which SPS activity was maintained in parallel to a rising activity of fructose-1,... Mostrar Tudo |
Thesaurus NAL: |
Carbon metabolism; Chlorophyll fluorescence; Coffee; Gas exchange; Sucrose-phosphate synthase; Water deficit. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02453naa a2200241 a 4500 001 1004903 005 2015-01-13 008 2006 bl uuuu u00u1 u #d 100 1 $aPRAXEDES, S. C. 245 $aEffects of long-term soil drought on photosynthesis and carbohydrate metabolism in mature robusta coffee (Coffea canephora Pierre var. kouillou) leaves.$h[electronic resource] 260 $c2006 520 $aFour clones of robusta coffee representing drought-tolerant (14 and 120) and drought-sensitive (46 and 109A) genotypes were submitted to a slowly imposed water deficit. Sampling and measurements were performed when predawn leaf water potential (Ψpd) approximately −2.0 and −3.0 MPa was reached. Regardless of the clone evaluated, drought led to sharper decreases in stomatal conductance than in photosynthesis, which was accompanied by significant declines in internal to ambient CO2 concentration ratio. Little or no effect of drought on chlorophyll a fluorescence parameters was observed. Regardless of the stress intensity, starch decreased remarkably. This was not accompanied by significant changes in concentration of soluble sugars, with the exception of clone 120 in which a rise in sucrose and hexose concentrations was found when Ψpd reached −3.0 MPa. At Ψpd = −2.0 MPa, activity of acid invertase increased only in clone 120; at Ψpd = −3.0 MPa, it increased in clones 14, 46 and 120, while activity of sucrose synthase declined, but only in clone 109A. Drought-induced decrease in ADP-glucose pyrophosphorylase activity was found only in clones 14 and 46, irrespective of stress intensity. At Ψpd = −3.0 MPa, maximal extractable and activation state of sucrose-phosphate synthase (SPS) decreased in all clones with the exception of clone 120, in which SPS activity was maintained in parallel to a rising activity of fructose-1,6-bisphosphatase. Changes in SPS activity could neither be explained by the CO2 decrease linked to stomatal closure nor by differences in leaf water status. 650 $aCarbon metabolism 650 $aChlorophyll fluorescence 650 $aCoffee 650 $aGas exchange 650 $aSucrose-phosphate synthase 650 $aWater deficit 700 1 $aDAMATTA, F. M. 700 1 $aLOUREIRO, M. E. 700 1 $aFERRÃO, M. A. G. 700 1 $aCORDEIRO, A. T. 773 $tEnvironmental and Experimental Botany$gv. 56, n. 3, p. 263-273, 2006
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