Maize yield and rainfall on different spatial and temporal scales in Southern Brazil
Autor(a) principal: | |
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Data de Publicação: | 2007 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
Texto Completo: | http://www.alice.cnptia.embrapa.br/alice/handle/doc/126141 |
Resumo: | This study aimed to establish relationships between maize yield and rainfall on different temporal and spatial scales, in order to provide a basis for crop monitoring and modelling. A 16-year series of maize yield and daily rainfall from 11 municipalities and micro-regions of Rio Grande do Sul State was used. Correlation and regression analyses were used to determine associations between crop yield and rainfall for the entire crop cycle, from tasseling to 30 days after, and from 5 days before tasseling to 40 days after. Close relationships between maize yield and rainfall were found, particularly during the reproductive period (45-day period comprising the flowering and grain filling). Relationships were closer on a regional scale than at smaller scales. Implications of the crop-rainfall relationships for crop modelling are discussed. |
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Maize yield and rainfall on different spatial and temporal scales in Southern Brazilrainfallwater deficitcritical perioddeficit hídricomodelagemperíodo críticoChuvaZea Mayscrop modelsThis study aimed to establish relationships between maize yield and rainfall on different temporal and spatial scales, in order to provide a basis for crop monitoring and modelling. A 16-year series of maize yield and daily rainfall from 11 municipalities and micro-regions of Rio Grande do Sul State was used. Correlation and regression analyses were used to determine associations between crop yield and rainfall for the entire crop cycle, from tasseling to 30 days after, and from 5 days before tasseling to 40 days after. Close relationships between maize yield and rainfall were found, particularly during the reproductive period (45-day period comprising the flowering and grain filling). Relationships were closer on a regional scale than at smaller scales. Implications of the crop-rainfall relationships for crop modelling are discussed.Título em português: Rendimento de milho e chuva em diferentes escalas espaço-temporais no Sul do Brasil.Homero Bergamaschi, Universidade Federal do Rio Grande do Sul - UFRGS; Timothy Robert Wheeler, The University of Reading; Andrew Juan Challinor, The University of Reading; Flávia Comiran, Universidade Federal do Rio Grande do Sul - UFRGS; Bruna Maria Machado Heckler, Universidade Federal do Rio Grande do Sul - UFRGS.BERGAMASCHI, H.WHEELER, T. R.CHALLINOR, A. J.COMIRAN, F.HECKLER, B. M. M.2014-08-22T06:56:57Z2014-08-22T06:56:57Z2008-01-1420072018-07-12T11:11:11Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlePesquisa Agropecuária Brasileira, Brasília, DF, v. 42, n. 5, p. 603-613, maio 2007http://www.alice.cnptia.embrapa.br/alice/handle/doc/126141enginfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPA2017-08-16T00:24:03Zoai:www.alice.cnptia.embrapa.br:doc/126141Repositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestopendoar:21542017-08-16T00:24:03falseRepositório InstitucionalPUBhttps://www.alice.cnptia.embrapa.br/oai/requestcg-riaa@embrapa.bropendoar:21542017-08-16T00:24:03Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Maize yield and rainfall on different spatial and temporal scales in Southern Brazil |
title |
Maize yield and rainfall on different spatial and temporal scales in Southern Brazil |
spellingShingle |
Maize yield and rainfall on different spatial and temporal scales in Southern Brazil BERGAMASCHI, H. rainfall water deficit critical period deficit hídrico modelagem período crítico Chuva Zea Mays crop models |
title_short |
Maize yield and rainfall on different spatial and temporal scales in Southern Brazil |
title_full |
Maize yield and rainfall on different spatial and temporal scales in Southern Brazil |
title_fullStr |
Maize yield and rainfall on different spatial and temporal scales in Southern Brazil |
title_full_unstemmed |
Maize yield and rainfall on different spatial and temporal scales in Southern Brazil |
title_sort |
Maize yield and rainfall on different spatial and temporal scales in Southern Brazil |
author |
BERGAMASCHI, H. |
author_facet |
BERGAMASCHI, H. WHEELER, T. R. CHALLINOR, A. J. COMIRAN, F. HECKLER, B. M. M. |
author_role |
author |
author2 |
WHEELER, T. R. CHALLINOR, A. J. COMIRAN, F. HECKLER, B. M. M. |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Homero Bergamaschi, Universidade Federal do Rio Grande do Sul - UFRGS; Timothy Robert Wheeler, The University of Reading; Andrew Juan Challinor, The University of Reading; Flávia Comiran, Universidade Federal do Rio Grande do Sul - UFRGS; Bruna Maria Machado Heckler, Universidade Federal do Rio Grande do Sul - UFRGS. |
dc.contributor.author.fl_str_mv |
BERGAMASCHI, H. WHEELER, T. R. CHALLINOR, A. J. COMIRAN, F. HECKLER, B. M. M. |
dc.subject.por.fl_str_mv |
rainfall water deficit critical period deficit hídrico modelagem período crítico Chuva Zea Mays crop models |
topic |
rainfall water deficit critical period deficit hídrico modelagem período crítico Chuva Zea Mays crop models |
description |
This study aimed to establish relationships between maize yield and rainfall on different temporal and spatial scales, in order to provide a basis for crop monitoring and modelling. A 16-year series of maize yield and daily rainfall from 11 municipalities and micro-regions of Rio Grande do Sul State was used. Correlation and regression analyses were used to determine associations between crop yield and rainfall for the entire crop cycle, from tasseling to 30 days after, and from 5 days before tasseling to 40 days after. Close relationships between maize yield and rainfall were found, particularly during the reproductive period (45-day period comprising the flowering and grain filling). Relationships were closer on a regional scale than at smaller scales. Implications of the crop-rainfall relationships for crop modelling are discussed. |
publishDate |
2007 |
dc.date.none.fl_str_mv |
2007 2008-01-14 2014-08-22T06:56:57Z 2014-08-22T06:56:57Z 2018-07-12T11:11:11Z |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 42, n. 5, p. 603-613, maio 2007 http://www.alice.cnptia.embrapa.br/alice/handle/doc/126141 |
identifier_str_mv |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 42, n. 5, p. 603-613, maio 2007 |
url |
http://www.alice.cnptia.embrapa.br/alice/handle/doc/126141 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
collection |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) |
repository.name.fl_str_mv |
Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA - Alice) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
cg-riaa@embrapa.br |
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1794503393568358400 |