Sample size for estimating the Pearson correlation coefficient among corn characters
Autor(a) principal: | |
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Data de Publicação: | 2011 |
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/8481 |
Resumo: | The objective of this work was to determine the sample size for estimating the Pearson correlation coefficient among characters from three corn hybrids. For the analyses, 361, 373 and 416 plants were taken randomly from the hybrids single, triple and double, respectively. For each plant, the following characters were measured: major and minor stem diameters, plant and, heights, weight, length and diameter of ear, number of rows per ear, weight and diameter of cob, a hundred-grain weight, number of grain per ear, grain length and grain yield. For each of the 91 pairs of characters and hybrids, the sample size, based on bootstrap with replacement of 1,000 samples, of each simulated sample size, was determined. In the estimation of Pearson correlation coefficient with the same precision, the sample size (number of plants) increases in the direction of character pairs with lower intensity of the linear relationship, independently of the hybrid cross type. For the 91 pairs of characters studied, 252 plants are sufficient to estimate the Pearson correlation coefficient, in the bootstrap confidence interval 95%, equal to 0.30. |
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Sample size for estimating the Pearson correlation coefficient among corn charactersTamanho de amostra para estimação do coeficiente de correlação linear de Pearson entre caracteres de milhoZea mays; experimental design; bootstrap resampling; linear relationshipZea mays; planejamento experimental; reamostragem "bootstrap"; relação linearThe objective of this work was to determine the sample size for estimating the Pearson correlation coefficient among characters from three corn hybrids. For the analyses, 361, 373 and 416 plants were taken randomly from the hybrids single, triple and double, respectively. For each plant, the following characters were measured: major and minor stem diameters, plant and, heights, weight, length and diameter of ear, number of rows per ear, weight and diameter of cob, a hundred-grain weight, number of grain per ear, grain length and grain yield. For each of the 91 pairs of characters and hybrids, the sample size, based on bootstrap with replacement of 1,000 samples, of each simulated sample size, was determined. In the estimation of Pearson correlation coefficient with the same precision, the sample size (number of plants) increases in the direction of character pairs with lower intensity of the linear relationship, independently of the hybrid cross type. For the 91 pairs of characters studied, 252 plants are sufficient to estimate the Pearson correlation coefficient, in the bootstrap confidence interval 95%, equal to 0.30.O objetivo deste trabalho foi determinar o tamanho de amostra para a estimação do coeficiente de correlação linear de Pearson entre caracteres de três híbridos de milho. Para as análises, foram tomadas aleatoriamente 361, 373 e 416 plantas, respectivamente, de híbridos simples, triplo e duplo. Para cada planta, os seguintes caracteres foram mensurados: diâmetro maior e menor do colmo, altura da planta e altura, peso, comprimento e diâmetro da espiga, número de fileiras por espiga, peso e diâmetro de sabugo, massa de cem grãos, número de grãos por espiga, comprimento e produtividade de grãos. Para cada um dos 91 pares de caracteres e híbridos, foi determinado o tamanho de amostra a partir de "bootstrap", com reposição de 1.000 amostras, de cada tamanho de amostra simulado. Na estimação do coeficiente de correlação linear de Pearson com a mesma precisão, o tamanho de amostra (número de plantas) aumenta na direção de pares de caracteres com menor intensidade de relação linear, independentemente do tipo de híbrido. Para os 91 pares de caracteres estudados, 252 plantas são suficientes para a estimação do coeficiente de correlação linear de Pearson, no intervalo de confiança de "bootstrap" de 95%, igual a 0,30. Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraCargnelutti Filho, AlbertoToebe, MarcosBurin, CláudiaSilveira, Tatiani Reis daCasarotto, Gabriele2011-03-22info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/8481Pesquisa Agropecuaria Brasileira; v.45, n.12, dez. 2010; 1363-1371Pesquisa Agropecuária Brasileira; v.45, n.12, dez. 2010; 1363-13711678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/8481/6155https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/8481/4191info:eu-repo/semantics/openAccess2014-11-14T17:10:29Zoai:ojs.seer.sct.embrapa.br:article/8481Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-11-14T17:10:29Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Sample size for estimating the Pearson correlation coefficient among corn characters Tamanho de amostra para estimação do coeficiente de correlação linear de Pearson entre caracteres de milho |
title |
Sample size for estimating the Pearson correlation coefficient among corn characters |
spellingShingle |
Sample size for estimating the Pearson correlation coefficient among corn characters Cargnelutti Filho, Alberto Zea mays; experimental design; bootstrap resampling; linear relationship Zea mays; planejamento experimental; reamostragem "bootstrap"; relação linear |
title_short |
Sample size for estimating the Pearson correlation coefficient among corn characters |
title_full |
Sample size for estimating the Pearson correlation coefficient among corn characters |
title_fullStr |
Sample size for estimating the Pearson correlation coefficient among corn characters |
title_full_unstemmed |
Sample size for estimating the Pearson correlation coefficient among corn characters |
title_sort |
Sample size for estimating the Pearson correlation coefficient among corn characters |
author |
Cargnelutti Filho, Alberto |
author_facet |
Cargnelutti Filho, Alberto Toebe, Marcos Burin, Cláudia Silveira, Tatiani Reis da Casarotto, Gabriele |
author_role |
author |
author2 |
Toebe, Marcos Burin, Cláudia Silveira, Tatiani Reis da Casarotto, Gabriele |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
|
dc.contributor.author.fl_str_mv |
Cargnelutti Filho, Alberto Toebe, Marcos Burin, Cláudia Silveira, Tatiani Reis da Casarotto, Gabriele |
dc.subject.por.fl_str_mv |
Zea mays; experimental design; bootstrap resampling; linear relationship Zea mays; planejamento experimental; reamostragem "bootstrap"; relação linear |
topic |
Zea mays; experimental design; bootstrap resampling; linear relationship Zea mays; planejamento experimental; reamostragem "bootstrap"; relação linear |
description |
The objective of this work was to determine the sample size for estimating the Pearson correlation coefficient among characters from three corn hybrids. For the analyses, 361, 373 and 416 plants were taken randomly from the hybrids single, triple and double, respectively. For each plant, the following characters were measured: major and minor stem diameters, plant and, heights, weight, length and diameter of ear, number of rows per ear, weight and diameter of cob, a hundred-grain weight, number of grain per ear, grain length and grain yield. For each of the 91 pairs of characters and hybrids, the sample size, based on bootstrap with replacement of 1,000 samples, of each simulated sample size, was determined. In the estimation of Pearson correlation coefficient with the same precision, the sample size (number of plants) increases in the direction of character pairs with lower intensity of the linear relationship, independently of the hybrid cross type. For the 91 pairs of characters studied, 252 plants are sufficient to estimate the Pearson correlation coefficient, in the bootstrap confidence interval 95%, equal to 0.30. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-03-22 |
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/8481 |
url |
https://seer.sct.embrapa.br/index.php/pab/article/view/8481 |
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/8481/6155 https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/8481/4191 |
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.45, n.12, dez. 2010; 1363-1371 Pesquisa Agropecuária Brasileira; v.45, n.12, dez. 2010; 1363-1371 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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1793416705407451136 |