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 | Acesso ao texto completo restrito à biblioteca da Epagri-Sede. Para informações adicionais entre em contato com biblio@epagri.sc.gov.br. |
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Registro Completo |
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Biblioteca(s): |
Epagri-Sede. |
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Data corrente: |
28/01/2002 |
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Data da última atualização: |
28/01/2002 |
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Autoria: |
ARGENTA, G.; SILVA, P.R.F. da; SANGOI, L. |
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Título: |
Arranjo de plantas em milho: analise do estado-da-arte. |
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Ano de publicação: |
2001 |
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Fonte/Imprenta: |
Ciencia Rural, Santa Maria, v.31,n.6, p.1075-1084, 2001. |
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Idioma: |
Português |
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Conteúdo: |
A interceptacao da radiacao fotossinteticamente ativa pelas plantas exerce grande influencia sobre a sua performance quando outros fatores ambientais sao favoraveis. A eficiencia de utilizacao da radiacao solar a campo e muito baixa. a escolha adequada do arranjo de plantas pode aumentar a interceptacao da radiacao, a eficiencia de seu uso e o rendimento de graos das culturas, por influenciar o indice de area foliar, angulo da folha e a distribuicao de folhas no dossel. Esta revisao tem por objetivo analisar os principais fatores que afetam a escolha do arranjo de plantas em milho, a evolucao da sua recomendacao e as modificacoes introduzidas nas caracteristcas de plantas que a determinaram. |
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Palavras-Chave: |
Densidade de planta; Distribuicao de planta; Espacamento; Linha; Milho; Viabilidade entre palntas; Zea mays. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01307naa a2200229 a 4500
001 1020293
005 2002-01-28
008 2001 bl uuuu u00u1 u #d
100 1 $aARGENTA, G.
245 $aArranjo de plantas em milho$banalise do estado-da-arte.
260 $c2001
520 $aA interceptacao da radiacao fotossinteticamente ativa pelas plantas exerce grande influencia sobre a sua performance quando outros fatores ambientais sao favoraveis. A eficiencia de utilizacao da radiacao solar a campo e muito baixa. a escolha adequada do arranjo de plantas pode aumentar a interceptacao da radiacao, a eficiencia de seu uso e o rendimento de graos das culturas, por influenciar o indice de area foliar, angulo da folha e a distribuicao de folhas no dossel. Esta revisao tem por objetivo analisar os principais fatores que afetam a escolha do arranjo de plantas em milho, a evolucao da sua recomendacao e as modificacoes introduzidas nas caracteristcas de plantas que a determinaram.
653 $aDensidade de planta
653 $aDistribuicao de planta
653 $aEspacamento
653 $aLinha
653 $aMilho
653 $aViabilidade entre palntas
653 $aZea mays
700 1 $aSILVA, P.R.F. da
700 1 $aSANGOI, L.
773 $tCiencia Rural, Santa Maria$gv.31,n.6, p.1075-1084, 2001.
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Epagri-Sede (Epagri-Sede) |
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Biblioteca(s): |
Epagri-Sede. |
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Data corrente: |
27/04/2017 |
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Data da última atualização: |
27/04/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
Internacional - B |
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Autoria: |
DARBYSHIREA, R.; FARRERA, I.; MARTINEZ-LÜSCHER, J.; LEITE, G. B.; MATHIEU, V.; YAACOUBI, A. E.; LEGAVE, J. |
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Título: |
A global evaluation of apple flowering phenology models for climate adaptation. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Agricultural and Forest Meteorology, Amsterdan, v. 240, p. 67-77, 2017. |
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Idioma: |
Inglês |
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Conteúdo: |
This study presents the first evaluation of apple flowering phenology models using data from 14 sites across the globe. The dataset includes large variability in growing climates, a prerequisite to investigate phenology models for use in climate change applications. Two flowering stages, early and full, were investigated allowing for unique model evaluation based on both statistical performance and biological assumptions. Two overarching phenology models (Sequential and Chill Overlap) and two sub-models of chill (Dynamic and Triangular) and heat (GDH and Sigmoidal) were tested. Flowering times from the different sites illustrated the differing effects of contrasting winter and spring temperatures. Sites with similar springtime temperatures, but different winter temperatures, had different flowering patterns (warmer winter sites flowered later). Across all analyses, results from the Chill Overlap model were better than those from the Sequential model. Of the Chill Overlap models, those fitted with the Triangular or Dynamic chill model and the GDH heat sub-model performed well statistically and met the assumptions of the model across both flowering stages. The mild sites in the analysis were least well represented, regardless of model selection. This global evaluation demonstrated that flowering modelling in temperate fruit trees would progress through appropriate choices of overarching model, sub-models and parameters. |
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Palavras-Chave: |
Chill overlap model; Chill requirement; Global warming; Golden delicious; Heat requirement; Sequential model. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 02222naa a2200265 a 4500
001 1126150
005 2017-04-27
008 2017 bl uuuu u00u1 u #d
100 1 $aDARBYSHIREA, R.
245 $aA global evaluation of apple flowering phenology models for climate adaptation.$h[electronic resource]
260 $c2017
520 $aThis study presents the first evaluation of apple flowering phenology models using data from 14 sites across the globe. The dataset includes large variability in growing climates, a prerequisite to investigate phenology models for use in climate change applications. Two flowering stages, early and full, were investigated allowing for unique model evaluation based on both statistical performance and biological assumptions. Two overarching phenology models (Sequential and Chill Overlap) and two sub-models of chill (Dynamic and Triangular) and heat (GDH and Sigmoidal) were tested. Flowering times from the different sites illustrated the differing effects of contrasting winter and spring temperatures. Sites with similar springtime temperatures, but different winter temperatures, had different flowering patterns (warmer winter sites flowered later). Across all analyses, results from the Chill Overlap model were better than those from the Sequential model. Of the Chill Overlap models, those fitted with the Triangular or Dynamic chill model and the GDH heat sub-model performed well statistically and met the assumptions of the model across both flowering stages. The mild sites in the analysis were least well represented, regardless of model selection. This global evaluation demonstrated that flowering modelling in temperate fruit trees would progress through appropriate choices of overarching model, sub-models and parameters.
653 $aChill overlap model
653 $aChill requirement
653 $aGlobal warming
653 $aGolden delicious
653 $aHeat requirement
653 $aSequential model
700 1 $aFARRERA, I.
700 1 $aMARTINEZ-LÜSCHER, J.
700 1 $aLEITE, G. B.
700 1 $aMATHIEU, V.
700 1 $aYAACOUBI, A. E.
700 1 $aLEGAVE, J.
773 $tAgricultural and Forest Meteorology, Amsterdan$gv. 240, p. 67-77, 2017.
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