| |
|
|
 | 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 |
|
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
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Biblioteca Rui Tendinha (BRT) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
|
|
|
Registro Completo |
|
Biblioteca(s): |
Biblioteca Rui Tendinha. |
|
Data corrente: |
27/10/2023 |
|
Data da última atualização: |
27/10/2023 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
FERRARI, W. R.; CERRI NETO, B.; CRASQUE, J.; FERREIRA, T. R.; SOUZA, T. C. de; FALQUETO, A. R.; ARANTES, L. de O.; DOUSSEAU, S. |
|
Afiliação: |
Wesley Ribeiro Ferrari, Incaper; BasÃlio Cerri Neto, UFES; Jeane Crasque, UFES; Thayanne Rangel Ferreira, UFES; Thiago Corrêa de Souza, UFA; Antelmo Ralph Falqueto, UFES; Lucio de Oliveira Arantes, Incaper; Sara Dousseau Arantes, Incaper. |
|
Título: |
Black pepper grafting in Piper wild species. |
|
Ano de publicação: |
2023 |
|
Fonte/Imprenta: |
Bragantia, Campinas, v. 82, p. 1-14, 2023. |
|
Idioma: |
Inglês |
|
Conteúdo: |
Fusarium is the main disease of black pepper (Piper nigrum L.) in Brazil, and grafting using resistant rootstocks can be a
sustainable management strategy. Several wild Piper species have been considered resistant to infection. However, further studies on the
grafting process are needed to generate a safe technical recommendation for farmers. This research was carried out with the objective of
evaluating the initial compatibility of grafting through the interaction between two techniques (top cleft and side cleft) and six rootstocks.
The P. nigrum ?Bragantina? was grafted onto four wild Piper species (Piper aduncum Link, Piper tuberculatum Jacq., Piper marginatum Jacq.,
and Piper hispidum Kunth) and two black pepper cultivars (?Kottanadan Broto Branco? and ?Bragantina?-homograft). P. tuberculatum and
P. marginatum were incompatible with P. nigrum ?Bragantina? in the two grafting techniques. There was total suppression of leaf development
with incompatible rootstocks inside cleft grafting. The wild rootstocks had twice as many shoots at the base of the seedling than the cultivars
in the top cleft grafting. Side cleft grafting was able to suppress by half the shoots at the base of the rootstock, while the aerial part was
maintained. Top cleft grafting provided greater survival, shooting, and leaf emission, which was more evident when using P. aduncum species
as rootstock, reaching practically twice the shooting (59.3%) in comparison with the side grafting (30.6%). Therefore, the top method and
the use of P. aduncum as rootstock for the production of grafted black pepper seedlings is recommended.
KEY WORDS: Piper aduncum Link, Piper nigrum L., side cleft grafting, top cleft grafting. MenosFusarium is the main disease of black pepper (Piper nigrum L.) in Brazil, and grafting using resistant rootstocks can be a
sustainable management strategy. Several wild Piper species have been considered resistant to infection. However, further studies on the
grafting process are needed to generate a safe technical recommendation for farmers. This research was carried out with the objective of
evaluating the initial compatibility of grafting through the interaction between two techniques (top cleft and side cleft) and six rootstocks.
The P. nigrum ?Bragantina? was grafted onto four wild Piper species (Piper aduncum Link, Piper tuberculatum Jacq., Piper marginatum Jacq.,
and Piper hispidum Kunth) and two black pepper cultivars (?Kottanadan Broto Branco? and ?Bragantina?-homograft). P. tuberculatum and
P. marginatum were incompatible with P. nigrum ?Bragantina? in the two grafting techniques. There was total suppression of leaf development
with incompatible rootstocks inside cleft grafting. The wild rootstocks had twice as many shoots at the base of the seedling than the cultivars
in the top cleft grafting. Side cleft grafting was able to suppress by half the shoots at the base of the rootstock, while the aerial part was
maintained. Top cleft grafting provided greater survival, shooting, and leaf emission, which was more evident when using P. aduncum species
as rootstock, reaching practically twice the shooting (59.3%) in comparison with the side grafting (30.6%). Therefore, t... Mostrar Tudo |
|
Palavras-Chave: |
Enxertia. |
|
Thesagro: |
Fusarium; Pimenta do Reino Preta; Piper Nigrum. |
|
Thesaurus NAL: |
Piper aduncum. |
|
Categoria do assunto: |
-- |
|
URL: |
https://biblioteca.incaper.es.gov.br/digital/bitstream/item/4493/1/piperwildspecies.pdf
|
|
Marc: |
LEADER 02409naa a2200265 a 4500
001 1025122
005 2023-10-27
008 2023 bl uuuu u00u1 u #d
100 1 $aFERRARI, W. R.
245 $aBlack pepper grafting in Piper wild species.$h[electronic resource]
260 $c2023
520 $aFusarium is the main disease of black pepper (Piper nigrum L.) in Brazil, and grafting using resistant rootstocks can be a sustainable management strategy. Several wild Piper species have been considered resistant to infection. However, further studies on the grafting process are needed to generate a safe technical recommendation for farmers. This research was carried out with the objective of evaluating the initial compatibility of grafting through the interaction between two techniques (top cleft and side cleft) and six rootstocks. The P. nigrum ?Bragantina? was grafted onto four wild Piper species (Piper aduncum Link, Piper tuberculatum Jacq., Piper marginatum Jacq., and Piper hispidum Kunth) and two black pepper cultivars (?Kottanadan Broto Branco? and ?Bragantina?-homograft). P. tuberculatum and P. marginatum were incompatible with P. nigrum ?Bragantina? in the two grafting techniques. There was total suppression of leaf development with incompatible rootstocks inside cleft grafting. The wild rootstocks had twice as many shoots at the base of the seedling than the cultivars in the top cleft grafting. Side cleft grafting was able to suppress by half the shoots at the base of the rootstock, while the aerial part was maintained. Top cleft grafting provided greater survival, shooting, and leaf emission, which was more evident when using P. aduncum species as rootstock, reaching practically twice the shooting (59.3%) in comparison with the side grafting (30.6%). Therefore, the top method and the use of P. aduncum as rootstock for the production of grafted black pepper seedlings is recommended. KEY WORDS: Piper aduncum Link, Piper nigrum L., side cleft grafting, top cleft grafting.
650 $aPiper aduncum
650 $aFusarium
650 $aPimenta do Reino Preta
650 $aPiper Nigrum
653 $aEnxertia
700 1 $aCERRI NETO, B.
700 1 $aCRASQUE, J.
700 1 $aFERREIRA, T. R.
700 1 $aSOUZA, T. C. de
700 1 $aFALQUETO, A. R.
700 1 $aARANTES, L. de O.
700 1 $aDOUSSEAU, S.
773 $tBragantia, Campinas$gv. 82, p. 1-14, 2023.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Biblioteca Rui Tendinha (BRT) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Expressão de busca inválida. Verifique!!! |
|
|
