Plot size and number of replicates for experiments with forage sorghum
Autor(a) principal: | |
---|---|
Data de Publicação: | 2022 |
Outros Autores: | , , , , , |
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%. |
id |
EMBRAPA-4_53d912118d7c613bf0d1e3b6c77b4f92 |
---|---|
oai_identifier_str |
oai:ojs.seer.sct.embrapa.br:article/27162 |
network_acronym_str |
EMBRAPA-4 |
network_name_str |
Pesquisa Agropecuária Brasileira (Online) |
repository_id_str |
|
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 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 |
_version_ |
1793416689190174720 |