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| 9. |  | TREVISAN, R.; MATTOS, M. L. T.; HERTER, F. G. Atividade microbiana em argissolo vermelho-amarelo distrofico tipico coberto com aveia preta (Avena sp.) no outono, em pomar de pessegueiro. Revista Cientifica Rural, Bage, RS, v.7, n.2, p.83-89, ago./dez, 2002.| Biblioteca(s): Epagri-Sede. |
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| 11. | | LEITE, G. B.; PETRI, J. L.; HERTER, F. G. Conseqüências, durante o Ciclo Vegetativo, da Falta de Frio Hibernal: Problemas e Perspectivas. In: INTERNATIONAL WORSHOP OF TEMPERATE FRUIT TREES ADAPTATION IN SUBTROPICAL AREAS, 2., 2005, Pelotas, RS. Abstracts... Pelotas, RS: Embrapa Clima Temperado, 2005.| Biblioteca(s): Epagri-Sede. |
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| 17. | | HERTER, F.G.; CITADIN, I.; SILVEIRA, C.A.P. Necessidade de calor para a antese em pessegueiro, avaliada pelo metodo de ramos destacados. Agropecuaria Clima Temperado, Pelotas,RS, v.3, n.2, p.253-259, dez., 2000.| Biblioteca(s): Epagri-Sede. |
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Registro Completo
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Biblioteca(s): |
Epagri-Sede. |
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Data corrente: |
06/05/2014 |
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Data da última atualização: |
06/05/2014 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
Internacional - A |
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Autoria: |
SCHMITZ, J. D.; GUÉDON, Y.; HERTER, F. G.; LEITE, G. B.; LAURI, P. -. É. |
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Título: |
EXPLORING BUD DORMANCY COMPLETION WITH A COMBINED ARCHITECTURAL AND PHENOLOGICAL ANALYSIS: THE CASE OF APPLE TREES IN CONTRASTING WINTER TEMPERATURE CONDITIONS. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
American Journal of Botany, St. Louis, v. 101, n. 3, p. 398-407, 2014. |
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Idioma: |
Português |
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Conteúdo: |
Premise of the study: The branching pattern and phenology of trees result from interactions between the tree?s genetic constitution and environmental conditions. Temperature strongly affects the duration of bud dormancy and further shoot growth. Our hypothesis was that shoot architecture is strongly affected by winter temperatures determining both the position and budburst of vegetative laterals with a lower effect on their outgrowth. '? Methods: The study was conducted on four apple cultivars characterized by various chilling requirements and grown in two contrasting winter temperature conditions. A two-step approach was designed to quantify at the shoot scale fi rst the branching pattern and second two phenological stages of vegetative laterals, budburst and outgrowth. A categorical variable, the branching zone, was built to summarize the lateral position along the shoot. It was integrated into the phenological analysis as a factor together with the cultivar and the winter temperature.
? Key results: Temperature had a main effect on the distribution of vegetative laterals along the shoot. It also strongly affected budburst, which was also affected by the cultivar and the branching zone. The outgrowth of the lateral was not signifi cantly affected by temperature but was signifi cantly affected by the cultivar and the branching zone. Furthermore, the delayed senescence and subsequent leaf persistence during winter, characterizing the apple tree in the mild winter temperature condition, had
only a weak effect on the distribution of vegetative laterals and on budburst and lateral outgrowth. ? Conclusions: The actual shoot architecture and budburst result from an ordered sequence of events with a pivotal role of winter temperatures on the dormancy completion of individual lateral buds. Endogenous factors related to the cultivar branching pattern overtake the temperature effect on the lateral outgrowth. MenosPremise of the study: The branching pattern and phenology of trees result from interactions between the tree?s genetic constitution and environmental conditions. Temperature strongly affects the duration of bud dormancy and further shoot growth. Our hypothesis was that shoot architecture is strongly affected by winter temperatures determining both the position and budburst of vegetative laterals with a lower effect on their outgrowth. '? Methods: The study was conducted on four apple cultivars characterized by various chilling requirements and grown in two contrasting winter temperature conditions. A two-step approach was designed to quantify at the shoot scale fi rst the branching pattern and second two phenological stages of vegetative laterals, budburst and outgrowth. A categorical variable, the branching zone, was built to summarize the lateral position along the shoot. It was integrated into the phenological analysis as a factor together with the cultivar and the winter temperature.
? Key results: Temperature had a main effect on the distribution of vegetative laterals along the shoot. It also strongly affected budburst, which was also affected by the cultivar and the branching zone. The outgrowth of the lateral was not signifi cantly affected by temperature but was signifi cantly affected by the cultivar and the branching zone. Furthermore, the delayed senescence and subsequent leaf persistence during winter, characterizing the apple tree in the mild winter temperature... Mostrar Tudo |
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Palavras-Chave: |
branching dynamics; budburst; dormancy; hidden semi-Markov chain; Malus domestica; multiple change-point model; phenology; vegetative proleptic lateral; winter temperature. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02838naa a2200277 a 4500
001 1120812
005 2014-05-06
008 2014 bl uuuu u00u1 u #d
100 1 $aSCHMITZ, J. D.
245 $aEXPLORING BUD DORMANCY COMPLETION WITH A COMBINED ARCHITECTURAL AND PHENOLOGICAL ANALYSIS$bTHE CASE OF APPLE TREES IN CONTRASTING WINTER TEMPERATURE CONDITIONS.$h[electronic resource]
260 $c2014
520 $aPremise of the study: The branching pattern and phenology of trees result from interactions between the tree?s genetic constitution and environmental conditions. Temperature strongly affects the duration of bud dormancy and further shoot growth. Our hypothesis was that shoot architecture is strongly affected by winter temperatures determining both the position and budburst of vegetative laterals with a lower effect on their outgrowth. '? Methods: The study was conducted on four apple cultivars characterized by various chilling requirements and grown in two contrasting winter temperature conditions. A two-step approach was designed to quantify at the shoot scale fi rst the branching pattern and second two phenological stages of vegetative laterals, budburst and outgrowth. A categorical variable, the branching zone, was built to summarize the lateral position along the shoot. It was integrated into the phenological analysis as a factor together with the cultivar and the winter temperature. ? Key results: Temperature had a main effect on the distribution of vegetative laterals along the shoot. It also strongly affected budburst, which was also affected by the cultivar and the branching zone. The outgrowth of the lateral was not signifi cantly affected by temperature but was signifi cantly affected by the cultivar and the branching zone. Furthermore, the delayed senescence and subsequent leaf persistence during winter, characterizing the apple tree in the mild winter temperature condition, had only a weak effect on the distribution of vegetative laterals and on budburst and lateral outgrowth. ? Conclusions: The actual shoot architecture and budburst result from an ordered sequence of events with a pivotal role of winter temperatures on the dormancy completion of individual lateral buds. Endogenous factors related to the cultivar branching pattern overtake the temperature effect on the lateral outgrowth.
653 $abranching dynamics
653 $abudburst
653 $adormancy
653 $ahidden semi-Markov chain
653 $aMalus domestica
653 $amultiple change-point model
653 $aphenology
653 $avegetative proleptic lateral
653 $awinter temperature
700 1 $aGUÉDON, Y.
700 1 $aHERTER, F. G.
700 1 $aLEITE, G. B.
700 1 $aLAURI, P. -. É.
773 $tAmerican Journal of Botany, St. Louis$gv. 101, n. 3, p. 398-407, 2014.
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