Plot size and number of repetitions in forage wheat
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista Caatinga |
Texto Completo: | https://periodicos.ufersa.edu.br/caatinga/article/view/10880 |
Resumo: | Forage wheat (Triticum aestivum L.) is an annual crop, alternative for use as a ground cover crop in the winter period, in production systems in southern Brazil. Given its magnitude, research with field experiments is carried out and plot size definition is of great importance in the experimental design. The objectives of this study were to estimate the plot size and number of repetitions to evaluate the fresh matter of forage wheat and to investigate the variability of plot size among agricultural years, sowing dates and cultivars. Thirty-six uniformity trials were conducted (two agricultural years × three sowing dates × two cultivars × three repetitions). Plot size was determined by the method of maximum curvature of the coefficient of variation model. The number of repetitions was determined for experiments in completely randomized and randomized block designs in scenarios formed by the combinations of i treatments (i=3, 4, …, 50) and d least significant differences among treatment means to be detected as significant by the Tukey test, at 5% of significance, expressed as a percentage of the overall mean of the experiment (d=5%, 10%, …, 30%). The plot size to evaluate the fresh matter of forage wheat is 4.05 m². Seven repetitions are sufficient to identify the fresh matter in completely randomized designs and randomized block designs with up to 50 treatments, making it possible to obtain least significant difference lower than or equal to 20% of the mean of the experiment. |
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Plot size and number of repetitions in forage wheatTamanho de parcela e número de repetições em trigo forrageiroTriticum aestivum L. Cultura de cobertura de solo. Ensaio de uniformidade. Planejamento experimental.Triticum aestivum L. Soil cover crop. Uniformity trial. Experimental planning. Forage wheat (Triticum aestivum L.) is an annual crop, alternative for use as a ground cover crop in the winter period, in production systems in southern Brazil. Given its magnitude, research with field experiments is carried out and plot size definition is of great importance in the experimental design. The objectives of this study were to estimate the plot size and number of repetitions to evaluate the fresh matter of forage wheat and to investigate the variability of plot size among agricultural years, sowing dates and cultivars. Thirty-six uniformity trials were conducted (two agricultural years × three sowing dates × two cultivars × three repetitions). Plot size was determined by the method of maximum curvature of the coefficient of variation model. The number of repetitions was determined for experiments in completely randomized and randomized block designs in scenarios formed by the combinations of i treatments (i=3, 4, …, 50) and d least significant differences among treatment means to be detected as significant by the Tukey test, at 5% of significance, expressed as a percentage of the overall mean of the experiment (d=5%, 10%, …, 30%). The plot size to evaluate the fresh matter of forage wheat is 4.05 m². Seven repetitions are sufficient to identify the fresh matter in completely randomized designs and randomized block designs with up to 50 treatments, making it possible to obtain least significant difference lower than or equal to 20% of the mean of the experiment.O trigo forrageiro (Triticum aestivum L.) é uma cultura anual, alternativa de utilização como cultura de cobertura de solo no período de inverno, em sistemas produtivos da região Sul do Brasil. Dada sua magnitude, pesquisas com experimentos a campo são desenvolvidas e a definição do tamanho de parcela tem grande importância no planejamento experimental. Os objetivos deste trabalho foram estimar o tamanho de parcela e o número de repetições para avaliar a matéria fresca de trigo forrageiro e investigar a variabilidade de tamanho de parcela entre anos agrícolas, épocas de semeadura e cultivares. Foram conduzidos 36 ensaios de uniformidade (dois anos agrícolas × três épocas de semeadura × duas cultivares × três repetições). O tamanho de parcela foi determinado por meio do método da curvatura máxima do modelo do coeficiente de variação. O número de repetições foi determinado para experimentos nos delineamentos inteiramente casualizado e blocos ao acaso em cenários formados pelas combinações de i tratamentos (i=3, 4, ..., 50) e d diferenças mínimas entre médias de tratamentos detectadas como significativas pelo teste de Tukey, a 5% de significância, expressas em percentagem da média do experimento (d=5%, 10%, ..., 30%). O tamanho de parcela para avaliar a matéria fresca de trigo forrageiro é 4,05 m2. Sete repetições são suficientes para avaliar a matéria fresca em delineamentos inteiramente casualizado e blocos ao acaso com até 50 tratamentos, possibilitando obter diferença mínima significativa menor ou igual a 20% da média do experimento.Universidade Federal Rural do Semi-Árido2022-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufersa.edu.br/caatinga/article/view/1088010.1590/1983-21252023v36n125rcREVISTA CAATINGA; Vol. 36 No. 1 (2023); 234-242Revista Caatinga; v. 36 n. 1 (2023); 234-2421983-21250100-316Xreponame:Revista Caatingainstname:Universidade Federal Rural do Semi-Árido (UFERSA)instacron:UFERSAenghttps://periodicos.ufersa.edu.br/caatinga/article/view/10880/11089Copyright (c) 2022 Revista Caatingainfo:eu-repo/semantics/openAccessBubans, Valéria EscaloCargnelutti Filho, AlbertoNeu, Ismael Mario MárcioSilveira, Daniela LixinskiSomavilla, Felipe ManfioOsmari, Bruno Fillipin2023-07-27T12:35:02Zoai:ojs.periodicos.ufersa.edu.br:article/10880Revistahttps://periodicos.ufersa.edu.br/index.php/caatinga/indexPUBhttps://periodicos.ufersa.edu.br/index.php/caatinga/oaipatricio@ufersa.edu.br|| caatinga@ufersa.edu.br1983-21250100-316Xopendoar:2024-04-29T09:46:59.304857Revista Caatinga - Universidade Federal Rural do Semi-Árido (UFERSA)true |
dc.title.none.fl_str_mv |
Plot size and number of repetitions in forage wheat Tamanho de parcela e número de repetições em trigo forrageiro |
title |
Plot size and number of repetitions in forage wheat |
spellingShingle |
Plot size and number of repetitions in forage wheat Bubans, Valéria Escalo Triticum aestivum L. Cultura de cobertura de solo. Ensaio de uniformidade. Planejamento experimental. Triticum aestivum L. Soil cover crop. Uniformity trial. Experimental planning. |
title_short |
Plot size and number of repetitions in forage wheat |
title_full |
Plot size and number of repetitions in forage wheat |
title_fullStr |
Plot size and number of repetitions in forage wheat |
title_full_unstemmed |
Plot size and number of repetitions in forage wheat |
title_sort |
Plot size and number of repetitions in forage wheat |
author |
Bubans, Valéria Escalo |
author_facet |
Bubans, Valéria Escalo Cargnelutti Filho, Alberto Neu, Ismael Mario Márcio Silveira, Daniela Lixinski Somavilla, Felipe Manfio Osmari, Bruno Fillipin |
author_role |
author |
author2 |
Cargnelutti Filho, Alberto Neu, Ismael Mario Márcio Silveira, Daniela Lixinski Somavilla, Felipe Manfio Osmari, Bruno Fillipin |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Bubans, Valéria Escalo Cargnelutti Filho, Alberto Neu, Ismael Mario Márcio Silveira, Daniela Lixinski Somavilla, Felipe Manfio Osmari, Bruno Fillipin |
dc.subject.por.fl_str_mv |
Triticum aestivum L. Cultura de cobertura de solo. Ensaio de uniformidade. Planejamento experimental. Triticum aestivum L. Soil cover crop. Uniformity trial. Experimental planning. |
topic |
Triticum aestivum L. Cultura de cobertura de solo. Ensaio de uniformidade. Planejamento experimental. Triticum aestivum L. Soil cover crop. Uniformity trial. Experimental planning. |
description |
Forage wheat (Triticum aestivum L.) is an annual crop, alternative for use as a ground cover crop in the winter period, in production systems in southern Brazil. Given its magnitude, research with field experiments is carried out and plot size definition is of great importance in the experimental design. The objectives of this study were to estimate the plot size and number of repetitions to evaluate the fresh matter of forage wheat and to investigate the variability of plot size among agricultural years, sowing dates and cultivars. Thirty-six uniformity trials were conducted (two agricultural years × three sowing dates × two cultivars × three repetitions). Plot size was determined by the method of maximum curvature of the coefficient of variation model. The number of repetitions was determined for experiments in completely randomized and randomized block designs in scenarios formed by the combinations of i treatments (i=3, 4, …, 50) and d least significant differences among treatment means to be detected as significant by the Tukey test, at 5% of significance, expressed as a percentage of the overall mean of the experiment (d=5%, 10%, …, 30%). The plot size to evaluate the fresh matter of forage wheat is 4.05 m². Seven repetitions are sufficient to identify the fresh matter in completely randomized designs and randomized block designs with up to 50 treatments, making it possible to obtain least significant difference lower than or equal to 20% of the mean of the experiment. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-12-01 |
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://periodicos.ufersa.edu.br/caatinga/article/view/10880 10.1590/1983-21252023v36n125rc |
url |
https://periodicos.ufersa.edu.br/caatinga/article/view/10880 |
identifier_str_mv |
10.1590/1983-21252023v36n125rc |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://periodicos.ufersa.edu.br/caatinga/article/view/10880/11089 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2022 Revista Caatinga info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2022 Revista Caatinga |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal Rural do Semi-Árido |
publisher.none.fl_str_mv |
Universidade Federal Rural do Semi-Árido |
dc.source.none.fl_str_mv |
REVISTA CAATINGA; Vol. 36 No. 1 (2023); 234-242 Revista Caatinga; v. 36 n. 1 (2023); 234-242 1983-2125 0100-316X reponame:Revista Caatinga instname:Universidade Federal Rural do Semi-Árido (UFERSA) instacron:UFERSA |
instname_str |
Universidade Federal Rural do Semi-Árido (UFERSA) |
instacron_str |
UFERSA |
institution |
UFERSA |
reponame_str |
Revista Caatinga |
collection |
Revista Caatinga |
repository.name.fl_str_mv |
Revista Caatinga - Universidade Federal Rural do Semi-Árido (UFERSA) |
repository.mail.fl_str_mv |
patricio@ufersa.edu.br|| caatinga@ufersa.edu.br |
_version_ |
1797674029606240256 |