| |
|
|
 | Acesso ao texto completo restrito à biblioteca da Epagri-Sede. Para informações adicionais entre em contato com biblio@epagri.sc.gov.br. |
|
Registro Completo |
|
Biblioteca(s): |
Epagri-Sede. |
|
Data corrente: |
13/06/2005 |
|
Data da última atualização: |
13/06/2005 |
|
Autoria: |
ROQUE, A.P.; OSORIO, J.C.da S.; JARDIM, P.O.; OLIVEIRA, N.M.de; OSORIO, M.T.M. |
|
Título: |
Producao de carne em ovinos de cinco genotipos. 6. Desenvolvimento relativo. |
|
Ano de publicação: |
1999 |
|
Fonte/Imprenta: |
Ciencia Rural, Santa Maria, v.29, n.3, p.549-553, jul-set. 1999. |
|
Idioma: |
Português |
|
Palavras-Chave: |
Alometria; Carcaca; Componentes de peso vivo; Composicao tecidual; Cordeiro. |
|
Categoria do assunto: |
-- |
|
Marc: |
LEADER 00624naa a2200217 a 4500
001 1036669
005 2005-06-13
008 1999 bl uuuu u00u1 u #d
100 1 $aROQUE, A.P.
245 $aProducao de carne em ovinos de cinco genotipos. 6. Desenvolvimento relativo.
260 $c1999
653 $aAlometria
653 $aCarcaca
653 $aComponentes de peso vivo
653 $aComposicao tecidual
653 $aCordeiro
700 1 $aOSORIO, J.C.da S.
700 1 $aJARDIM, P.O.
700 1 $aOLIVEIRA, N.M.de
700 1 $aOSORIO, M.T.M.
773 $tCiencia Rural, Santa Maria$gv.29, n.3, p.549-553, jul-set. 1999.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Epagri-Sede (Epagri-Sede) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
|
Voltar
|
|
|
Registro Completo
|
Biblioteca(s): |
Epagri-Sede. |
|
Data corrente: |
14/04/2011 |
|
Data da última atualização: |
14/04/2011 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Circulação/Nível: |
-- - -- |
|
Autoria: |
LEITE, G. B.; BONHOMME, M.; LACOINTE, A.; RAGEAU, R.; SAKR, S.; GUILLIOT, A.; MAUREL, K.; PETEL, G.; RODRIGUES, A. C. |
|
Afiliação: |
Epagri |
|
Título: |
Influence of Lack of Chilling on Bud-break Patterns and Evolution of Sugar Contents in Buds and Stem Tissues along the One-year-old Shoot of the Peach Trees. |
|
Ano de publicação: |
2004 |
|
Fonte/Imprenta: |
Acta Horticulturae, Brugge, v. 662, n. , p. 61-71, 2004. |
|
Idioma: |
Inglês |
|
Notas: |
ISSN, 0567-7572 |
|
Conteúdo: |
Through experiments providing different amounts of chilling to trees before
they were given forcing temperatures, the influence of this amount on the budbreak
pattern of peach tree was investigated with special regards to the dynamics of
development of the buds according to their place along the twig. Vegetative and
floral budbreak was recorded on the trees. Leaf bud endodormancy was
characterized by the mean time of bud break (MTB) through the ?cuttings? test. Dry
weight of floral primordia was measured. On the basis of the hypothesized ?trophic?
control of the primordia growth and development, sucrose, sorbitol, fructose and
glucose contents were assayed in the buds and stem. Under natural conditions (NC) and under total chilling deprivation (TCD) the results on bud development (MTB, growth of floral primordia) and budbreak (good budbreak under NC, no budbreak under TCD) confirmed former results on peach (especially, under both treatments no gradients along the twig). Under NC, in floral buds, the sugar contents showed at the budbreak time starch and hexose increases and a decrease of sucrose and sorbitol. In leaf buds, only the starch showed an increase. Sucrose, sorbitol and hexoses stayed stable. Under TCD, all carbohydrates stayed stable.
Under the treatment ?chilling amount = 1/3 requirements? (PCD1), a few
buds broke. The rates of leaf and floral budbreaking (consistently with MTB data)
and floral bud drop showed longitudinal gradients. The dynamics of sugar specific
contents showed a transitory oscillation, in opposite way in leaf and floral buds, and
with stronger amplitude at the basal part of the stem. In floral buds, the sugar
contents at the budbreak time stayed stable to starch and hexose, decreased for
sorbitol and increase for hexoses. In leaf buds, all carbohydrates stayed stable.
Under the treatment ?chilling amount = 2/3 requirements? (PCD2), most leaf
and many floral buds broke, but many flowers dropped at bloom. Slight acrotonic
gradients could be observed. For most of the sugars and tissues the dynamics of
sugar specific contents looked like those under NC; however, they showed gradients
(for instance, an early hexoses gradient consistent with the acrotonic floral buds
bloom). In floral buds, the sugar contents showed at the budbreak time a starch and
sucrose stability, a decrease of sorbitol and an increase of hexoses. In leaf buds, only
the starch increased. Sucrose, sorbitol and hexoses stayed stable.
The availability of carbohydrates would not be the key factor of the pattern
of budbreak. The capacity to use soluble sugars seems to be more critical. The capacity to synthesize starch could be a marker for growth capacity. MenosThrough experiments providing different amounts of chilling to trees before
they were given forcing temperatures, the influence of this amount on the budbreak
pattern of peach tree was investigated with special regards to the dynamics of
development of the buds according to their place along the twig. Vegetative and
floral budbreak was recorded on the trees. Leaf bud endodormancy was
characterized by the mean time of bud break (MTB) through the ?cuttings? test. Dry
weight of floral primordia was measured. On the basis of the hypothesized ?trophic?
control of the primordia growth and development, sucrose, sorbitol, fructose and
glucose contents were assayed in the buds and stem. Under natural conditions (NC) and under total chilling deprivation (TCD) the results on bud development (MTB, growth of floral primordia) and budbreak (good budbreak under NC, no budbreak under TCD) confirmed former results on peach (especially, under both treatments no gradients along the twig). Under NC, in floral buds, the sugar contents showed at the budbreak time starch and hexose increases and a decrease of sucrose and sorbitol. In leaf buds, only the starch showed an increase. Sucrose, sorbitol and hexoses stayed stable. Under TCD, all carbohydrates stayed stable.
Under the treatment ?chilling amount = 1/3 requirements? (PCD1), a few
buds broke. The rates of leaf and floral budbreaking (consistently with MTB data)
and floral bud drop showed longitudinal gradients. The dynamics of sugar specific... Mostrar Tudo |
|
Palavras-Chave: |
Bud position; Carbohydrate gradients; Dormancy; Prunus persica. |
|
Categoria do assunto: |
-- |
|
|
|
|
Marc: |
LEADER 03281naa a2200181 a 4500
001 1075707
005 2011-04-14
008 2004 bl uuuu u00u1 u #d
100 1 $aEpagri
245 $aInfluence of Lack of Chilling on Bud-break Patterns and Evolution of Sugar Contents in Buds and Stem Tissues along the One-year-old Shoot of the Peach Trees.
260 $c2004
500 $aISSN, 0567-7572
520 $aThrough experiments providing different amounts of chilling to trees before they were given forcing temperatures, the influence of this amount on the budbreak pattern of peach tree was investigated with special regards to the dynamics of development of the buds according to their place along the twig. Vegetative and floral budbreak was recorded on the trees. Leaf bud endodormancy was characterized by the mean time of bud break (MTB) through the ?cuttings? test. Dry weight of floral primordia was measured. On the basis of the hypothesized ?trophic? control of the primordia growth and development, sucrose, sorbitol, fructose and glucose contents were assayed in the buds and stem. Under natural conditions (NC) and under total chilling deprivation (TCD) the results on bud development (MTB, growth of floral primordia) and budbreak (good budbreak under NC, no budbreak under TCD) confirmed former results on peach (especially, under both treatments no gradients along the twig). Under NC, in floral buds, the sugar contents showed at the budbreak time starch and hexose increases and a decrease of sucrose and sorbitol. In leaf buds, only the starch showed an increase. Sucrose, sorbitol and hexoses stayed stable. Under TCD, all carbohydrates stayed stable. Under the treatment ?chilling amount = 1/3 requirements? (PCD1), a few buds broke. The rates of leaf and floral budbreaking (consistently with MTB data) and floral bud drop showed longitudinal gradients. The dynamics of sugar specific contents showed a transitory oscillation, in opposite way in leaf and floral buds, and with stronger amplitude at the basal part of the stem. In floral buds, the sugar contents at the budbreak time stayed stable to starch and hexose, decreased for sorbitol and increase for hexoses. In leaf buds, all carbohydrates stayed stable. Under the treatment ?chilling amount = 2/3 requirements? (PCD2), most leaf and many floral buds broke, but many flowers dropped at bloom. Slight acrotonic gradients could be observed. For most of the sugars and tissues the dynamics of sugar specific contents looked like those under NC; however, they showed gradients (for instance, an early hexoses gradient consistent with the acrotonic floral buds bloom). In floral buds, the sugar contents showed at the budbreak time a starch and sucrose stability, a decrease of sorbitol and an increase of hexoses. In leaf buds, only the starch increased. Sucrose, sorbitol and hexoses stayed stable. The availability of carbohydrates would not be the key factor of the pattern of budbreak. The capacity to use soluble sugars seems to be more critical. The capacity to synthesize starch could be a marker for growth capacity.
653 $aBud position
653 $aCarbohydrate gradients
653 $aDormancy
653 $aPrunus persica
773 $tActa Horticulturae, Brugge$gv. 662, n. , p. 61-71, 2004.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Epagri-Sede (Epagri-Sede) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Expressão de busca inválida. Verifique!!! |
|
|
