Plot size and number of replicates for experiments with forage sorghum

Detalhes bibliográficos
Autor(a) principal: Toebe, Marcos
Data de Publicação: 2022
Outros Autores: Cargnelutti Filho, Alberto, Souza, Rafael Rodrigues de, Soares, Franciele dos Santos, Mello, Anderson Chuquel, Melo, Patrícia Jesus de, Silva, Lucas Santos da
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Pesquisa Agropecuária Brasileira (Online)
Texto Completo: https://seer.sct.embrapa.br/index.php/pab/article/view/27162
Resumo: The objective of this work was to define the optimal plot size and number of replicates for the evaluation of the fresh weight of sorghum (Sorghum bicolor) hybrids. Thirty-two uniformity trials were carried out with two hybrids, in two sowing dates and four evaluation periods. Each trial was divided into 48 basic experimental units (BEUs) of 0.5 m2, and fresh weight was determined for each BEU. The mean, variance, coefficient of variation , first-order spatial autocorrelation coefficient, optimal plot size, and coefficient of variation of the optimal plot size were calculated. The number of replicates was determined on the basis of the largest calculated plot size, through an iterative process, for the combinations of number of treatments and differences among means to be detected as significant by Tukey’s test, at 5% probability. The optimal plot size ranged from 1.79 to 2.58 m2, and the number of replicates from 2.6 (~3) to 49.2 (~50). The optimal plot size is 2.58 m2, and five replicates are sufficient to identify as significant the differences between treatment means of 35%.
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spelling Plot size and number of replicates for experiments with forage sorghumTamanho de parcela e número de repetições para experimentos com sorgo-forrageiroSorghum bicolor; experiment planning; uniformity trialsSorghum bicolor; planejamento experimental; ensaios de uniformidadeThe objective of this work was to define the optimal plot size and number of replicates for the evaluation of the fresh weight of sorghum (Sorghum bicolor) hybrids. Thirty-two uniformity trials were carried out with two hybrids, in two sowing dates and four evaluation periods. Each trial was divided into 48 basic experimental units (BEUs) of 0.5 m2, and fresh weight was determined for each BEU. The mean, variance, coefficient of variation , first-order spatial autocorrelation coefficient, optimal plot size, and coefficient of variation of the optimal plot size were calculated. The number of replicates was determined on the basis of the largest calculated plot size, through an iterative process, for the combinations of number of treatments and differences among means to be detected as significant by Tukey’s test, at 5% probability. The optimal plot size ranged from 1.79 to 2.58 m2, and the number of replicates from 2.6 (~3) to 49.2 (~50). The optimal plot size is 2.58 m2, and five replicates are sufficient to identify as significant the differences between treatment means of 35%.O objetivo deste trabalho foi definir o tamanho ótimo de parcela e o número de repetições para a avaliação da massa de matéria fresca de híbridos de sorgo (Sorghum bicolor). Trinta e dois ensaios de uniformidade foram realizados com dois híbridos, em duas datas de semeadura e quatro períodos de avaliação. Cada ensaio foi dividido em 48 unidades experimentais básicas (UEBs) de 0,5 m2, e a massa de matéria fresca foi determinada para cada UEB. Calcularam-se a média, a variância, o coeficiente de variação, o coeficiente de autocorrelação espacial de primeira ordem, o tamanho ótimo de parcela e o coeficiente de variação do tamanho ótimo de parcela. O número de repetições foi determinado com base no maior tamanho de parcela, por meio de um processo iterativo, para as combinações de número de tratamentos e de diferenças entre médias a serem detectadas como significativas pelo teste de Tukey, a 5% de probabilidade. O tamanho ótimo de parcela oscilou entre 1,79 e 2,58 m2, e o número de repetições entre 2,6 (~3) e 49,2 (~50). O tamanho ótimo de parcela é de 2,58 m2, e cinco repetições são suficientes para identificar como significativas as diferenças entre médias de tratamentos de 35%.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq, Proc. 313827/2021-4)Coord. de Aperf. de Pessoal de Nível Superior (Capes, Code 001)Fund. de Amparo à Pesq. do Est. do Rio Grande do Sul (Fapergs, Proc.16/2551- 0000257-6)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq, Proc. 313827/2021-4)Coord. de Aperf. de Pessoal de Nível Superior (Capes, Código 001)Fund. de Amparo à Pesq. do Est. do Rio Grande do Sul (Fapergs, Proc 16/2551-0000257-6)Toebe, MarcosCargnelutti Filho, AlbertoSouza, Rafael Rodrigues deSoares, Franciele dos SantosMello, Anderson ChuquelMelo, Patrícia Jesus deSilva, Lucas Santos da2022-11-22info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/27162Pesquisa Agropecuaria Brasileira; V.57, Jan./Dec., 2022: Publicação contínua em volume anual; e02979Pesquisa Agropecuária Brasileira; V.57, Jan./Dec., 2022: Publicação contínua em volume anual; e029791678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAenghttps://seer.sct.embrapa.br/index.php/pab/article/view/27162/15107Direitos autorais 2022 Pesquisa Agropecuária Brasileirainfo:eu-repo/semantics/openAccess2023-01-23T13:40:18Zoai:ojs.seer.sct.embrapa.br:article/27162Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2023-01-23T13:40:18Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Plot size and number of replicates for experiments with forage sorghum
Tamanho de parcela e número de repetições para experimentos com sorgo-forrageiro
title Plot size and number of replicates for experiments with forage sorghum
spellingShingle Plot size and number of replicates for experiments with forage sorghum
Toebe, Marcos
Sorghum bicolor; experiment planning; uniformity trials
Sorghum bicolor; planejamento experimental; ensaios de uniformidade
title_short Plot size and number of replicates for experiments with forage sorghum
title_full Plot size and number of replicates for experiments with forage sorghum
title_fullStr Plot size and number of replicates for experiments with forage sorghum
title_full_unstemmed Plot size and number of replicates for experiments with forage sorghum
title_sort Plot size and number of replicates for experiments with forage sorghum
author Toebe, Marcos
author_facet Toebe, Marcos
Cargnelutti Filho, Alberto
Souza, Rafael Rodrigues de
Soares, Franciele dos Santos
Mello, Anderson Chuquel
Melo, Patrícia Jesus de
Silva, Lucas Santos da
author_role author
author2 Cargnelutti Filho, Alberto
Souza, Rafael Rodrigues de
Soares, Franciele dos Santos
Mello, Anderson Chuquel
Melo, Patrícia Jesus de
Silva, Lucas Santos da
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq, Proc. 313827/2021-4)
Coord. de Aperf. de Pessoal de Nível Superior (Capes, Code 001)
Fund. de Amparo à Pesq. do Est. do Rio Grande do Sul (Fapergs, Proc.16/2551- 0000257-6)
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq, Proc. 313827/2021-4)
Coord. de Aperf. de Pessoal de Nível Superior (Capes, Código 001)
Fund. de Amparo à Pesq. do Est. do Rio Grande do Sul (Fapergs, Proc 16/2551-0000257-6)
dc.contributor.author.fl_str_mv Toebe, Marcos
Cargnelutti Filho, Alberto
Souza, Rafael Rodrigues de
Soares, Franciele dos Santos
Mello, Anderson Chuquel
Melo, Patrícia Jesus de
Silva, Lucas Santos da
dc.subject.por.fl_str_mv Sorghum bicolor; experiment planning; uniformity trials
Sorghum bicolor; planejamento experimental; ensaios de uniformidade
topic Sorghum bicolor; experiment planning; uniformity trials
Sorghum bicolor; planejamento experimental; ensaios de uniformidade
description The objective of this work was to define the optimal plot size and number of replicates for the evaluation of the fresh weight of sorghum (Sorghum bicolor) hybrids. Thirty-two uniformity trials were carried out with two hybrids, in two sowing dates and four evaluation periods. Each trial was divided into 48 basic experimental units (BEUs) of 0.5 m2, and fresh weight was determined for each BEU. The mean, variance, coefficient of variation , first-order spatial autocorrelation coefficient, optimal plot size, and coefficient of variation of the optimal plot size were calculated. The number of replicates was determined on the basis of the largest calculated plot size, through an iterative process, for the combinations of number of treatments and differences among means to be detected as significant by Tukey’s test, at 5% probability. The optimal plot size ranged from 1.79 to 2.58 m2, and the number of replicates from 2.6 (~3) to 49.2 (~50). The optimal plot size is 2.58 m2, and five replicates are sufficient to identify as significant the differences between treatment means of 35%.
publishDate 2022
dc.date.none.fl_str_mv 2022-11-22
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/27162
url https://seer.sct.embrapa.br/index.php/pab/article/view/27162
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/27162/15107
dc.rights.driver.fl_str_mv Direitos autorais 2022 Pesquisa Agropecuária Brasileira
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Direitos autorais 2022 Pesquisa Agropecuária Brasileira
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.57, Jan./Dec., 2022: Publicação contínua em volume anual; e02979
Pesquisa Agropecuária Brasileira; V.57, Jan./Dec., 2022: Publicação contínua em volume anual; e02979
1678-3921
0100-104x
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repository.name.fl_str_mv Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
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