Experimental precision of wheat trials in homogeneous adaptation regions
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Pesquisa Agropecuária Brasileira (Online) |
Texto Completo: | https://seer.sct.embrapa.br/index.php/pab/article/view/14205 |
Resumo: | The objective of this work was to evaluate the adequacy of measures of the experimental precision degree in trial sets of genotype competition in wheat (Triticum aestivum), carried out in homogeneous adaptation regions. The statistics heritability, coefficient of determination, F‑test value for genotype, Fasoulas differentiation index, selective accuracy, and repeatability coefficient were calculated from results of wheat grain yield obtained in 572 competition trials with 25 genotypes, in four homogeneous adaptation regions in the crop years from 2007 to 2011. Linear correlations among the statistics were estimated and path analysis was performed. Statistics were grouped using Ward’s hierarchical method. Statistical means from each adaptation region were compared by the t bootstrap test. The statistics selective accuracy, coefficient of determination, coefficient of heritability, and repeatability coefficient are algebraically related and are suitable to evaluate the experimental accuracy of wheat competition trials in different adaptation regions. The regions used for the evaluation of values for cultivation and use of wheat differ in selective accuracy and repeatability coefficient. |
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Experimental precision of wheat trials in homogeneous adaptation regionsPrecisão experimental de ensaios de trigo em regiões homogêneas de adaptaçãoptaçãoTriticum aestivum; quality control; experimental planning; repeatability; cultivar selection and recommendationTriticum aestivum; controle de qualidade; planejamento experimental; repetibilidade; seleção e recomendação de cultivaresThe objective of this work was to evaluate the adequacy of measures of the experimental precision degree in trial sets of genotype competition in wheat (Triticum aestivum), carried out in homogeneous adaptation regions. The statistics heritability, coefficient of determination, F‑test value for genotype, Fasoulas differentiation index, selective accuracy, and repeatability coefficient were calculated from results of wheat grain yield obtained in 572 competition trials with 25 genotypes, in four homogeneous adaptation regions in the crop years from 2007 to 2011. Linear correlations among the statistics were estimated and path analysis was performed. Statistics were grouped using Ward’s hierarchical method. Statistical means from each adaptation region were compared by the t bootstrap test. The statistics selective accuracy, coefficient of determination, coefficient of heritability, and repeatability coefficient are algebraically related and are suitable to evaluate the experimental accuracy of wheat competition trials in different adaptation regions. The regions used for the evaluation of values for cultivation and use of wheat differ in selective accuracy and repeatability coefficient.O objetivo deste trabalho foi avaliar a adequação de estatísticas de precisão experimental em conjuntos de ensaios de competição de genótipos de trigo (Triticum aestivum), realizados em regiões homogêneas de adaptação. As estatísticas herdabilidade, coeficiente de determinação, valor do teste F para genótipo, índice de diferenciação de Fasoulas, acurácia seletiva e coeficiente de repetibilidade foram calculadas a partir de resultados de produtividade de grãos de trigo de 572 ensaios de competição com 25 genótipos, em quatro regiões homogêneas de adaptação, nas safras de 2007 a 2011. Foram estimadas as correlações lineares entre as estatísticas e realizada a análise de trilha. As estatísticas foram agrupadas pelo método hierárquico de Ward. As médias das estatísticas de cada região de adaptação foram comparadas pelo teste t "bootstrap". As estatísticas acurácia seletiva, coeficiente de determinação, coeficiente de herdabilidade e coeficiente de repetibilidade apresentam relação algébrica e são adequadas para avaliar a precisão experimental de ensaios de competição de trigo em diferentes regiões de adaptação. As regiões utilizadas para avaliação do valor de cultivo e uso do trigo diferem quanto à acurácia seletiva e ao coeficiente de repetibilidade.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraCooperativa Central de Pesquisa Agrícola (COODETEC). Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq). Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES).Benin, GiovaniStorck, LindolfoMarchioro, Volmir SérgioFranco, Francisco de AssisSchuster, Ivan2013-06-27info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/14205Pesquisa Agropecuaria Brasileira; v.48, n.4, abr. 2013; 365-372Pesquisa Agropecuária Brasileira; v.48, n.4, abr. 2013; 365-3721678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/14205/11346https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/14205/9566https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/14205/9567info:eu-repo/semantics/openAccess2013-06-27T17:48:17Zoai:ojs.seer.sct.embrapa.br:article/14205Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2013-06-27T17:48:17Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Experimental precision of wheat trials in homogeneous adaptation regions Precisão experimental de ensaios de trigo em regiões homogêneas de adaptaçãoptação |
title |
Experimental precision of wheat trials in homogeneous adaptation regions |
spellingShingle |
Experimental precision of wheat trials in homogeneous adaptation regions Benin, Giovani Triticum aestivum; quality control; experimental planning; repeatability; cultivar selection and recommendation Triticum aestivum; controle de qualidade; planejamento experimental; repetibilidade; seleção e recomendação de cultivares |
title_short |
Experimental precision of wheat trials in homogeneous adaptation regions |
title_full |
Experimental precision of wheat trials in homogeneous adaptation regions |
title_fullStr |
Experimental precision of wheat trials in homogeneous adaptation regions |
title_full_unstemmed |
Experimental precision of wheat trials in homogeneous adaptation regions |
title_sort |
Experimental precision of wheat trials in homogeneous adaptation regions |
author |
Benin, Giovani |
author_facet |
Benin, Giovani Storck, Lindolfo Marchioro, Volmir Sérgio Franco, Francisco de Assis Schuster, Ivan |
author_role |
author |
author2 |
Storck, Lindolfo Marchioro, Volmir Sérgio Franco, Francisco de Assis Schuster, Ivan |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Cooperativa Central de Pesquisa Agrícola (COODETEC). Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq). Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES). |
dc.contributor.author.fl_str_mv |
Benin, Giovani Storck, Lindolfo Marchioro, Volmir Sérgio Franco, Francisco de Assis Schuster, Ivan |
dc.subject.por.fl_str_mv |
Triticum aestivum; quality control; experimental planning; repeatability; cultivar selection and recommendation Triticum aestivum; controle de qualidade; planejamento experimental; repetibilidade; seleção e recomendação de cultivares |
topic |
Triticum aestivum; quality control; experimental planning; repeatability; cultivar selection and recommendation Triticum aestivum; controle de qualidade; planejamento experimental; repetibilidade; seleção e recomendação de cultivares |
description |
The objective of this work was to evaluate the adequacy of measures of the experimental precision degree in trial sets of genotype competition in wheat (Triticum aestivum), carried out in homogeneous adaptation regions. The statistics heritability, coefficient of determination, F‑test value for genotype, Fasoulas differentiation index, selective accuracy, and repeatability coefficient were calculated from results of wheat grain yield obtained in 572 competition trials with 25 genotypes, in four homogeneous adaptation regions in the crop years from 2007 to 2011. Linear correlations among the statistics were estimated and path analysis was performed. Statistics were grouped using Ward’s hierarchical method. Statistical means from each adaptation region were compared by the t bootstrap test. The statistics selective accuracy, coefficient of determination, coefficient of heritability, and repeatability coefficient are algebraically related and are suitable to evaluate the experimental accuracy of wheat competition trials in different adaptation regions. The regions used for the evaluation of values for cultivation and use of wheat differ in selective accuracy and repeatability coefficient. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-06-27 |
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/14205 |
url |
https://seer.sct.embrapa.br/index.php/pab/article/view/14205 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://seer.sct.embrapa.br/index.php/pab/article/view/14205/11346 https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/14205/9566 https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/14205/9567 |
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 |
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.48, n.4, abr. 2013; 365-372 Pesquisa Agropecuária Brasileira; v.48, n.4, abr. 2013; 365-372 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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1793416679354531840 |