Consideration of the appropriate variation sources of the statistical model and their impacts on plant breeding
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Acta Scientiarum. Agronomy (Online) |
Texto Completo: | http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/39791 |
Resumo: | The present work has aimed to assess the consideration of the appropriate variation sources of the statistical model and their impacts on the conclusions plant breeding. The Value for Cultivation and Use test was conducted to assess three common locations (Lages, Ponte Serrada, and Canoinhas) and four non-common locations (Chapecó, Guatambu, Urussanga, and Campos Novos). The grain yields of six bean genotypes were evaluated in order to represent the imbalance between the common and non-common locations. The statistical analysis considered two situations: i) union of the location factors and cultivation years, with a single variation source called environment and ii) decomposition of the mean square values of the two factors, location and year. According to the simplified analysis (environmental variation source), the F test for the genotype factor was highly significant (p = 0.0006). On the other hand, the hypothesis test for the genotype factor was not significant (p = 0.7370) when the decomposition of mean squares was used. The simplified analysis presents some erroneous points, such as the use of a mean residue to test the hypothesis of the genotype factor, since this factor is composed of several sources of variation, and there is no exact F test. However, approximate F tests can be obtained by constructing linear combinations of average squares. This fact notes the relevance of considering the appropriate sources of variation within the statistical model, with a direct impact on the conclusions and recommendations of cultivars with superior performance. |
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Acta Scientiarum. Agronomy (Online) |
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Consideration of the appropriate variation sources of the statistical model and their impacts on plant breedingVCU trialsvariance analysismathematical expectations.Melhoramento VegetalThe present work has aimed to assess the consideration of the appropriate variation sources of the statistical model and their impacts on the conclusions plant breeding. The Value for Cultivation and Use test was conducted to assess three common locations (Lages, Ponte Serrada, and Canoinhas) and four non-common locations (Chapecó, Guatambu, Urussanga, and Campos Novos). The grain yields of six bean genotypes were evaluated in order to represent the imbalance between the common and non-common locations. The statistical analysis considered two situations: i) union of the location factors and cultivation years, with a single variation source called environment and ii) decomposition of the mean square values of the two factors, location and year. According to the simplified analysis (environmental variation source), the F test for the genotype factor was highly significant (p = 0.0006). On the other hand, the hypothesis test for the genotype factor was not significant (p = 0.7370) when the decomposition of mean squares was used. The simplified analysis presents some erroneous points, such as the use of a mean residue to test the hypothesis of the genotype factor, since this factor is composed of several sources of variation, and there is no exact F test. However, approximate F tests can be obtained by constructing linear combinations of average squares. This fact notes the relevance of considering the appropriate sources of variation within the statistical model, with a direct impact on the conclusions and recommendations of cultivars with superior performance. Universidade Estadual de Maringá2018-11-13info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionPesquisa Empírica de Campoapplication/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/3979110.4025/actasciagron.v41i0.39791Acta Scientiarum. Agronomy; Vol 41 (2019): Publicação Contínua; e39791Acta Scientiarum. Agronomy; v. 41 (2019): Publicação Contínua; e397911807-86211679-9275reponame:Acta Scientiarum. Agronomy (Online)instname:Universidade Estadual de Maringá (UEM)instacron:UEMenghttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/39791/pdfCopyright (c) 2018 Acta Scientiarum. Agronomyhttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessMelo, Rita Carolina deCoimbra, Jefferson Luís MeirellesTrevisani, NicoleGuidolin, Altamir FredericoKavalco, Sydney Antonio Frehner2019-09-24T12:25:27Zoai:periodicos.uem.br/ojs:article/39791Revistahttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgronPUBhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/oaiactaagron@uem.br||actaagron@uem.br|| edamasio@uem.br1807-86211679-9275opendoar:2019-09-24T12:25:27Acta Scientiarum. Agronomy (Online) - Universidade Estadual de Maringá (UEM)false |
dc.title.none.fl_str_mv |
Consideration of the appropriate variation sources of the statistical model and their impacts on plant breeding |
title |
Consideration of the appropriate variation sources of the statistical model and their impacts on plant breeding |
spellingShingle |
Consideration of the appropriate variation sources of the statistical model and their impacts on plant breeding Melo, Rita Carolina de VCU trials variance analysis mathematical expectations. Melhoramento Vegetal |
title_short |
Consideration of the appropriate variation sources of the statistical model and their impacts on plant breeding |
title_full |
Consideration of the appropriate variation sources of the statistical model and their impacts on plant breeding |
title_fullStr |
Consideration of the appropriate variation sources of the statistical model and their impacts on plant breeding |
title_full_unstemmed |
Consideration of the appropriate variation sources of the statistical model and their impacts on plant breeding |
title_sort |
Consideration of the appropriate variation sources of the statistical model and their impacts on plant breeding |
author |
Melo, Rita Carolina de |
author_facet |
Melo, Rita Carolina de Coimbra, Jefferson Luís Meirelles Trevisani, Nicole Guidolin, Altamir Frederico Kavalco, Sydney Antonio Frehner |
author_role |
author |
author2 |
Coimbra, Jefferson Luís Meirelles Trevisani, Nicole Guidolin, Altamir Frederico Kavalco, Sydney Antonio Frehner |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Melo, Rita Carolina de Coimbra, Jefferson Luís Meirelles Trevisani, Nicole Guidolin, Altamir Frederico Kavalco, Sydney Antonio Frehner |
dc.subject.por.fl_str_mv |
VCU trials variance analysis mathematical expectations. Melhoramento Vegetal |
topic |
VCU trials variance analysis mathematical expectations. Melhoramento Vegetal |
description |
The present work has aimed to assess the consideration of the appropriate variation sources of the statistical model and their impacts on the conclusions plant breeding. The Value for Cultivation and Use test was conducted to assess three common locations (Lages, Ponte Serrada, and Canoinhas) and four non-common locations (Chapecó, Guatambu, Urussanga, and Campos Novos). The grain yields of six bean genotypes were evaluated in order to represent the imbalance between the common and non-common locations. The statistical analysis considered two situations: i) union of the location factors and cultivation years, with a single variation source called environment and ii) decomposition of the mean square values of the two factors, location and year. According to the simplified analysis (environmental variation source), the F test for the genotype factor was highly significant (p = 0.0006). On the other hand, the hypothesis test for the genotype factor was not significant (p = 0.7370) when the decomposition of mean squares was used. The simplified analysis presents some erroneous points, such as the use of a mean residue to test the hypothesis of the genotype factor, since this factor is composed of several sources of variation, and there is no exact F test. However, approximate F tests can be obtained by constructing linear combinations of average squares. This fact notes the relevance of considering the appropriate sources of variation within the statistical model, with a direct impact on the conclusions and recommendations of cultivars with superior performance. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-11-13 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Pesquisa Empírica de Campo |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/39791 10.4025/actasciagron.v41i0.39791 |
url |
http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/39791 |
identifier_str_mv |
10.4025/actasciagron.v41i0.39791 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/39791/pdf |
dc.rights.driver.fl_str_mv |
Copyright (c) 2018 Acta Scientiarum. Agronomy https://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2018 Acta Scientiarum. Agronomy https://creativecommons.org/licenses/by/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Estadual de Maringá |
publisher.none.fl_str_mv |
Universidade Estadual de Maringá |
dc.source.none.fl_str_mv |
Acta Scientiarum. Agronomy; Vol 41 (2019): Publicação Contínua; e39791 Acta Scientiarum. Agronomy; v. 41 (2019): Publicação Contínua; e39791 1807-8621 1679-9275 reponame:Acta Scientiarum. Agronomy (Online) instname:Universidade Estadual de Maringá (UEM) instacron:UEM |
instname_str |
Universidade Estadual de Maringá (UEM) |
instacron_str |
UEM |
institution |
UEM |
reponame_str |
Acta Scientiarum. Agronomy (Online) |
collection |
Acta Scientiarum. Agronomy (Online) |
repository.name.fl_str_mv |
Acta Scientiarum. Agronomy (Online) - Universidade Estadual de Maringá (UEM) |
repository.mail.fl_str_mv |
actaagron@uem.br||actaagron@uem.br|| edamasio@uem.br |
_version_ |
1799305910570450944 |