SPATIAL AUTOCORRELATION IN THE EVALUATION OF MAIZE COMPOSITES FOR RESISTANCE TO FALL ARMYWORM (Spodoptera frugiperda)

Detalhes bibliográficos
Autor(a) principal: Reis, Américo José dos Santos
Data de Publicação: 2007
Outros Autores: Miranda Filho, José Branco de
Tipo de documento: Artigo
Idioma: por
Título da fonte: Pesquisa Agropecuária Tropical (Online)
Texto Completo: https://revistas.ufg.br/pat/article/view/2349
Resumo: Composites of maize (CRL-01, CRL-02 and CRL-03) were synthesized from crosses of adapted materials with exotic materials that have shown resistance to fall armyworm (Spodoptera frugiperda). Full-sib progenies from the three composites were evaluated for resistance to fall armyworm using a scale varying from 0 (no damage) to 5 (destroyed whorl). The experimental design was randomized complete blocks with two replications. Two models were considered: using the classical analysis with independent errors, and a model with spatially correlated errors. In the spatial model, the residual covariance matrix (R) followed a model built according to the spatial autocorrelation detected in the experiment. The test of Durbin-Watson was used to detect the presence of the spatial autocorrelation between plots, which showed to be highly significant. The distance range of the spatial autocorrelation was about 1.5 m. The use of the spatial model allowed a better local control, resulting a reduction in the estimates of residual variances and an increase of heritability coefficient estimates and expected progress with the selection. The ranking of progenies was changed when using different models of analysis. The use of mixed model was more appropriate than classical analysis in such circumstances. KEY-WORDS: Exotic germplasm; spatial autocorrelation; mixed model; BLUP.
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spelling SPATIAL AUTOCORRELATION IN THE EVALUATION OF MAIZE COMPOSITES FOR RESISTANCE TO FALL ARMYWORM (Spodoptera frugiperda)AUTOCORRELAÇÃO ESPACIAL NA AVALIAÇÃO DE COMPOSTOS DE MILHO PARA RESISTÊNCIA À LAGARTA DO CARTUCHO (Spodoptera frugiperda)Exotic germplasmspatial autocorrelationmixed modelBLUPGermoplasma exóticoautocorrelação espacialmodelos mistosBLUP Composites of maize (CRL-01, CRL-02 and CRL-03) were synthesized from crosses of adapted materials with exotic materials that have shown resistance to fall armyworm (Spodoptera frugiperda). Full-sib progenies from the three composites were evaluated for resistance to fall armyworm using a scale varying from 0 (no damage) to 5 (destroyed whorl). The experimental design was randomized complete blocks with two replications. Two models were considered: using the classical analysis with independent errors, and a model with spatially correlated errors. In the spatial model, the residual covariance matrix (R) followed a model built according to the spatial autocorrelation detected in the experiment. The test of Durbin-Watson was used to detect the presence of the spatial autocorrelation between plots, which showed to be highly significant. The distance range of the spatial autocorrelation was about 1.5 m. The use of the spatial model allowed a better local control, resulting a reduction in the estimates of residual variances and an increase of heritability coefficient estimates and expected progress with the selection. The ranking of progenies was changed when using different models of analysis. The use of mixed model was more appropriate than classical analysis in such circumstances. KEY-WORDS: Exotic germplasm; spatial autocorrelation; mixed model; BLUP. Foram gerados três compostos de milho (CRL-01, CRL-02 e CRL-03) entre materiais adaptados e materiais exóticos, com históricos de resistência à lagarta do cartucho (Spodoptera frugiperda). Famílias de irmãos germanos dos três compostos foram avaliadas para resistência à lagarta, usando uma escala de notas variando de 0 (sem danos) a 5 (cartucho destruído). O delineamento experimental usado foi o de blocos completos casualizados com duas repetições. Dois modelos foram considerados: um modelo com erros independentes e outro assumindo erros espacialmente correlacionados (análise espacial). Na análise espacial a matriz de covariâncias de resíduos (R) foi construída conforme a autocorrelação espacial detectada em cada experimento. O teste de Durbin-Watson foi usado para verificar presença da autocorrelação espacial entre parcelas, a qual foi altamente significativa. O alcance prático da autocorrelação espacial foi de cerca 1,5 m. A adoção da análise espacial permitiu uma melhoria no controle da variação local, resultando numa redução das estimativas das variâncias residuais e, conseqüentemente, num aumento dos coeficientes de herdabilidade estimados, com melhorias nos ganhos esperados com a seleção. O ordenamento das progênies foi alterado dependendo da escolha do modelo de análise. A analise espacial, nessas circunstâncias, foi mais apropriada que a análise com erros independentes. PALAVRAS-CHAVE: Germoplasma exótico; autocorrelação espacial; modelos mistos; BLUP.Escola de Agronomia - Universidade Federal de Goiás2007-11-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionAvaliado por paresMétodo Quantitativoapplication/pdfhttps://revistas.ufg.br/pat/article/view/2349Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; v. 33, n. 2, Jul./Dec. 2003; 65-72Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); v. 33, n. 2, jul./dez. 2003; 65-72Pesquisa Agropecuária Tropical; v. 33, n. 2, jul./dez. 2003; 65-721983-4063reponame:Pesquisa Agropecuária Tropical (Online)instname:Universidade Federal de Goiás (UFG)instacron:UFGporhttps://revistas.ufg.br/pat/article/view/2349/2332Reis, Américo José dos SantosMiranda Filho, José Branco deinfo:eu-repo/semantics/openAccess2020-02-26T23:57:52Zoai:ojs.revistas.ufg.br:article/2349Revistahttps://revistas.ufg.br/patPUBhttps://revistas.ufg.br/pat/oaiaseleguini.pat@gmail.com||mgoes@agro.ufg.br1983-40631517-6398opendoar:2024-05-21T19:55:05.143215Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)true
dc.title.none.fl_str_mv SPATIAL AUTOCORRELATION IN THE EVALUATION OF MAIZE COMPOSITES FOR RESISTANCE TO FALL ARMYWORM (Spodoptera frugiperda)
AUTOCORRELAÇÃO ESPACIAL NA AVALIAÇÃO DE COMPOSTOS DE MILHO PARA RESISTÊNCIA À LAGARTA DO CARTUCHO (Spodoptera frugiperda)
title SPATIAL AUTOCORRELATION IN THE EVALUATION OF MAIZE COMPOSITES FOR RESISTANCE TO FALL ARMYWORM (Spodoptera frugiperda)
spellingShingle SPATIAL AUTOCORRELATION IN THE EVALUATION OF MAIZE COMPOSITES FOR RESISTANCE TO FALL ARMYWORM (Spodoptera frugiperda)
Reis, Américo José dos Santos
Exotic germplasm
spatial autocorrelation
mixed model
BLUP
Germoplasma exótico
autocorrelação espacial
modelos mistos
BLUP
title_short SPATIAL AUTOCORRELATION IN THE EVALUATION OF MAIZE COMPOSITES FOR RESISTANCE TO FALL ARMYWORM (Spodoptera frugiperda)
title_full SPATIAL AUTOCORRELATION IN THE EVALUATION OF MAIZE COMPOSITES FOR RESISTANCE TO FALL ARMYWORM (Spodoptera frugiperda)
title_fullStr SPATIAL AUTOCORRELATION IN THE EVALUATION OF MAIZE COMPOSITES FOR RESISTANCE TO FALL ARMYWORM (Spodoptera frugiperda)
title_full_unstemmed SPATIAL AUTOCORRELATION IN THE EVALUATION OF MAIZE COMPOSITES FOR RESISTANCE TO FALL ARMYWORM (Spodoptera frugiperda)
title_sort SPATIAL AUTOCORRELATION IN THE EVALUATION OF MAIZE COMPOSITES FOR RESISTANCE TO FALL ARMYWORM (Spodoptera frugiperda)
author Reis, Américo José dos Santos
author_facet Reis, Américo José dos Santos
Miranda Filho, José Branco de
author_role author
author2 Miranda Filho, José Branco de
author2_role author
dc.contributor.author.fl_str_mv Reis, Américo José dos Santos
Miranda Filho, José Branco de
dc.subject.por.fl_str_mv Exotic germplasm
spatial autocorrelation
mixed model
BLUP
Germoplasma exótico
autocorrelação espacial
modelos mistos
BLUP
topic Exotic germplasm
spatial autocorrelation
mixed model
BLUP
Germoplasma exótico
autocorrelação espacial
modelos mistos
BLUP
description Composites of maize (CRL-01, CRL-02 and CRL-03) were synthesized from crosses of adapted materials with exotic materials that have shown resistance to fall armyworm (Spodoptera frugiperda). Full-sib progenies from the three composites were evaluated for resistance to fall armyworm using a scale varying from 0 (no damage) to 5 (destroyed whorl). The experimental design was randomized complete blocks with two replications. Two models were considered: using the classical analysis with independent errors, and a model with spatially correlated errors. In the spatial model, the residual covariance matrix (R) followed a model built according to the spatial autocorrelation detected in the experiment. The test of Durbin-Watson was used to detect the presence of the spatial autocorrelation between plots, which showed to be highly significant. The distance range of the spatial autocorrelation was about 1.5 m. The use of the spatial model allowed a better local control, resulting a reduction in the estimates of residual variances and an increase of heritability coefficient estimates and expected progress with the selection. The ranking of progenies was changed when using different models of analysis. The use of mixed model was more appropriate than classical analysis in such circumstances. KEY-WORDS: Exotic germplasm; spatial autocorrelation; mixed model; BLUP.
publishDate 2007
dc.date.none.fl_str_mv 2007-11-12
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Avaliado por pares
Método Quantitativo
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://revistas.ufg.br/pat/article/view/2349
url https://revistas.ufg.br/pat/article/view/2349
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://revistas.ufg.br/pat/article/view/2349/2332
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Escola de Agronomia - Universidade Federal de Goiás
publisher.none.fl_str_mv Escola de Agronomia - Universidade Federal de Goiás
dc.source.none.fl_str_mv Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics]; v. 33, n. 2, Jul./Dec. 2003; 65-72
Pesquisa Agropecuária Tropical (Agricultural Research in the Tropics); v. 33, n. 2, jul./dez. 2003; 65-72
Pesquisa Agropecuária Tropical; v. 33, n. 2, jul./dez. 2003; 65-72
1983-4063
reponame:Pesquisa Agropecuária Tropical (Online)
instname:Universidade Federal de Goiás (UFG)
instacron:UFG
instname_str Universidade Federal de Goiás (UFG)
instacron_str UFG
institution UFG
reponame_str Pesquisa Agropecuária Tropical (Online)
collection Pesquisa Agropecuária Tropical (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Tropical (Online) - Universidade Federal de Goiás (UFG)
repository.mail.fl_str_mv aseleguini.pat@gmail.com||mgoes@agro.ufg.br
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