Classification of environments to control genotypes by environment interaction with application to wheat in Rio Grande do Sul

Detalhes bibliográficos
Autor(a) principal: Silva, Enedino Corrêa da
Data de Publicação: 2014
Tipo de documento: Artigo
Idioma: por
eng
Título da fonte: Pesquisa Agropecuária Brasileira (Online)
Texto Completo: https://seer.sct.embrapa.br/index.php/pab/article/view/15883
Resumo: The presence of genotype x environment interaction is the critical point in genetic improvement of cultivated plants, as wheat (Triticum aestivum L.), and regionalization is one of practical approaches used for its control. The nature of cultivar x environments interaction shows some advantages in separating locals in the three regions actually existent in the State, showing also biasedness in σ2CL estimates when data from one year is used, due to presence of cultivar x year and cultivar x local x year interactions. Clustering and principal components methods showed no consistency in locals classification during the period of years considered. Cannonical variates method was considered the best appropriate for the present case. Results derived from data showed that II, III and IV regions did not differ significantly, being considered just one region.
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spelling Classification of environments to control genotypes by environment interaction with application to wheat in Rio Grande do SulClassificações ambientais para controlar a interação genótipo x ambiente com aplicação à cultura do trigo no Rio Grande do Sulplant breeding; regionalizationmelhoramento de plantas; regionalizaçãoThe presence of genotype x environment interaction is the critical point in genetic improvement of cultivated plants, as wheat (Triticum aestivum L.), and regionalization is one of practical approaches used for its control. The nature of cultivar x environments interaction shows some advantages in separating locals in the three regions actually existent in the State, showing also biasedness in σ2CL estimates when data from one year is used, due to presence of cultivar x year and cultivar x local x year interactions. Clustering and principal components methods showed no consistency in locals classification during the period of years considered. Cannonical variates method was considered the best appropriate for the present case. Results derived from data showed that II, III and IV regions did not differ significantly, being considered just one region.A presença de interação genótipo x ambiente é o ponto crítico em pesquisas de melhoramento genético de plantas cultivadas como trigo (Triticum aestivum L.), e a regionalização é uma das abordagens de caráter prático utilizadas para o seu controle. O estudo da natureza das interações cultivar x ambiente indicou alguma vantagem na separação dos locais nas três regiões da atual regionalização do Estado; mostrou, também, que as estimativas do componente de variância, σ2CL, a partir dos dados de um único ano, são tendenciosas, em virtude da presença significativa das interações cultivar x ano e cultivar x local x ano. Assim, os métodos de análise de conglomerados e de análise de componentes principais não apresentam consistência na classificação dos locais entre os anos estudados; o método de análise de variáveis canônicas é aquele que melhor se adapta ao presente caso. Os resultados mostram que os locais das atuais regiões II, III e IV se comportam como uma única região no estado, para a cultura do trigo.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraSilva, Enedino Corrêa da2014-04-16info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/15883Pesquisa Agropecuaria Brasileira; v.17, n.5, maio 1982; 757-766Pesquisa Agropecuária Brasileira; v.17, n.5, maio 1982; 757-7661678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporenghttps://seer.sct.embrapa.br/index.php/pab/article/view/15883/9965https://seer.sct.embrapa.br/index.php/pab/article/view/15883/9966info:eu-repo/semantics/openAccess2014-04-16T13:28:07Zoai:ojs.seer.sct.embrapa.br:article/15883Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-04-16T13:28:07Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Classification of environments to control genotypes by environment interaction with application to wheat in Rio Grande do Sul
Classificações ambientais para controlar a interação genótipo x ambiente com aplicação à cultura do trigo no Rio Grande do Sul
title Classification of environments to control genotypes by environment interaction with application to wheat in Rio Grande do Sul
spellingShingle Classification of environments to control genotypes by environment interaction with application to wheat in Rio Grande do Sul
Silva, Enedino Corrêa da
plant breeding; regionalization
melhoramento de plantas; regionalização
title_short Classification of environments to control genotypes by environment interaction with application to wheat in Rio Grande do Sul
title_full Classification of environments to control genotypes by environment interaction with application to wheat in Rio Grande do Sul
title_fullStr Classification of environments to control genotypes by environment interaction with application to wheat in Rio Grande do Sul
title_full_unstemmed Classification of environments to control genotypes by environment interaction with application to wheat in Rio Grande do Sul
title_sort Classification of environments to control genotypes by environment interaction with application to wheat in Rio Grande do Sul
author Silva, Enedino Corrêa da
author_facet Silva, Enedino Corrêa da
author_role author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv Silva, Enedino Corrêa da
dc.subject.por.fl_str_mv plant breeding; regionalization
melhoramento de plantas; regionalização
topic plant breeding; regionalization
melhoramento de plantas; regionalização
description The presence of genotype x environment interaction is the critical point in genetic improvement of cultivated plants, as wheat (Triticum aestivum L.), and regionalization is one of practical approaches used for its control. The nature of cultivar x environments interaction shows some advantages in separating locals in the three regions actually existent in the State, showing also biasedness in σ2CL estimates when data from one year is used, due to presence of cultivar x year and cultivar x local x year interactions. Clustering and principal components methods showed no consistency in locals classification during the period of years considered. Cannonical variates method was considered the best appropriate for the present case. Results derived from data showed that II, III and IV regions did not differ significantly, being considered just one region.
publishDate 2014
dc.date.none.fl_str_mv 2014-04-16
dc.type.none.fl_str_mv
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/15883
url https://seer.sct.embrapa.br/index.php/pab/article/view/15883
dc.language.iso.fl_str_mv por
eng
language por
eng
dc.relation.none.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/15883/9965
https://seer.sct.embrapa.br/index.php/pab/article/view/15883/9966
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
dc.source.none.fl_str_mv Pesquisa Agropecuaria Brasileira; v.17, n.5, maio 1982; 757-766
Pesquisa Agropecuária Brasileira; v.17, n.5, maio 1982; 757-766
1678-3921
0100-104x
reponame:Pesquisa Agropecuária Brasileira (Online)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron_str EMBRAPA
institution EMBRAPA
reponame_str Pesquisa Agropecuária Brasileira (Online)
collection Pesquisa Agropecuária Brasileira (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
repository.mail.fl_str_mv pab@sct.embrapa.br || sct.pab@embrapa.br
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