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Registro Completo |
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
02/08/2012 |
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Data da última atualização: |
17/08/2017 |
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Autoria: |
STRECK, N. A.; UHLMANN, L. O.; GABRIEL, L. F. |
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Afiliação: |
NEREU AUGUSTO STRECK, Universidade Federal de Santa Maria; LILIAN OSMARI UHLMANN, Universidade Federal de Santa Maria; LUANA FERNANDES GABRIEL, Universidade Federal de Santa Maria. |
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Título: |
Long-term changes in rice development in Southern Brazil, during the last ten decades. |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 47, n. 6, p. 727-737, jun. 2012. |
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Idioma: |
Inglês |
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Notas: |
Título em português: Alterações de longo prazo nas fases de desenvolvimento de arroz no Sul do Brasil, nas últimas dez décadas. |
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Conteúdo: |
The objective of this work was to test long‑term trends in the duration of rice development phases in Santa Maria, RS, Brazil. The duration from emergence to V3 (EM‑V3), emergence to panicle differentiation (EM‑R1), emergence to anthesis (EM‑R4), and emergence to all grains with brown hull (EM‑R9) was calculated using leaf appearance and developmental models for four rice cultivars (IRGA 421, IRGA 417, EPAGRI 109, and EEA 406), for the period from 1912 to 2011, considering three emergence dates (early, mid, and late). The trend of the time series was tested with the non‑parametric Mann‑Kendall test, and the magnitude of the trend was estimated with simple linear regression. Rice development has changed over the last ten decades in this location, leading to an anticipation of harvest time of 17 to 31 days, depending on the cultivar maturity group and emergence date, which is related to trends of temperature increase during the growing season. Warmer temperatures over the evaluated time period are responsible for changing rice phenology in this location, since minimum and maximum daily temperature drive the rice developmental models used. |
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Palavras-Chave: |
Região sul. |
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Thesagro: |
Arroz; Fenologia; Oryza Sativa; Taxa de crescimento. |
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Thesaurus Nal: |
Global warming; Growing season; Maturity groups; Phenology. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/62892/1/7408.pdf
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Marc: |
LEADER 02064naa a2200265 a 4500
001 1930290
005 2017-08-17
008 2012 bl uuuu u00u1 u #d
100 1 $aSTRECK, N. A.
245 $aLong-term changes in rice development in Southern Brazil, during the last ten decades.
260 $c2012
500 $aTítulo em português: Alterações de longo prazo nas fases de desenvolvimento de arroz no Sul do Brasil, nas últimas dez décadas.
520 $aThe objective of this work was to test long‑term trends in the duration of rice development phases in Santa Maria, RS, Brazil. The duration from emergence to V3 (EM‑V3), emergence to panicle differentiation (EM‑R1), emergence to anthesis (EM‑R4), and emergence to all grains with brown hull (EM‑R9) was calculated using leaf appearance and developmental models for four rice cultivars (IRGA 421, IRGA 417, EPAGRI 109, and EEA 406), for the period from 1912 to 2011, considering three emergence dates (early, mid, and late). The trend of the time series was tested with the non‑parametric Mann‑Kendall test, and the magnitude of the trend was estimated with simple linear regression. Rice development has changed over the last ten decades in this location, leading to an anticipation of harvest time of 17 to 31 days, depending on the cultivar maturity group and emergence date, which is related to trends of temperature increase during the growing season. Warmer temperatures over the evaluated time period are responsible for changing rice phenology in this location, since minimum and maximum daily temperature drive the rice developmental models used.
650 $aGlobal warming
650 $aGrowing season
650 $aMaturity groups
650 $aPhenology
650 $aArroz
650 $aFenologia
650 $aOryza Sativa
650 $aTaxa de crescimento
653 $aRegião sul
700 1 $aUHLMANN, L. O.
700 1 $aGABRIEL, L. F.
773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 47, n. 6, p. 727-737, jun. 2012.
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Embrapa Unidades Centrais (AI-SEDE) |
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| 1. |  | CANTÃO, F. R. O.; MAGALHAES, P. C.; ALMEIDA, I. F.; SOARES, M. O.; ROCHA, M. C.; SOUZA, T. C. de; VICENT, M. L. Avaliação da morfologia radicular de genótipos de milho sob estresse de fósoforo através da analise de imagens digitais. In: CONGRESSO NACIONAL DE MILHO E SORGO, 27.; SIMPOSIO BRASILEIRO SOBRE A LAGARTA-DO-CARTUCHO, SPODOPTERA FRUGIPERDA, 3.; WORKSHOP SOBRE MANEJO E ETIOLOGIA DA MANCHA BRANCA DO MILHO, 2008, Londrina. Agroenergia, produção de alimentos e mudanças climáticas: desafios para milho e sorgo: trabalhos e palestras. [Londrina]: IAPAR; [Sete Lagoas]: Embrapa Milho e Sorgo, 2008. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
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