Maize yield and rainfall on different spatial and temporal scales in Southern Brazil

Detalhes bibliográficos
Autor(a) principal: BERGAMASCHI, H.
Data de Publicação: 2007
Outros Autores: WHEELER, T. R., CHALLINOR, A. J., COMIRAN, F., HECKLER, B. M. M.
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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spelling 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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