Optimizing Bartlett test: a grain yield analysis in soybean

ABSTRACT: This study analyzed the response of the Bartlett test as a function of sample size and to define the optimal sample size for the test with soybean grain yield data. Six experiments were conducted in a randomized block design with 20 or 30 cultivars and three repetitions. Grain yield was de...

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Main Authors: Rafael Rodrigues de Souza, Marcos Toebe, Anderson Chuquel Mello, Karina Chertok Bittencourt, Iris Cristina Datsch Toebe
Format: Article
Language:English
Published: Universidade Federal de Santa Maria 2022-08-01
Series:Ciência Rural
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782023000600201&tlng=en
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author Rafael Rodrigues de Souza
Marcos Toebe
Anderson Chuquel Mello
Karina Chertok Bittencourt
Iris Cristina Datsch Toebe
author_facet Rafael Rodrigues de Souza
Marcos Toebe
Anderson Chuquel Mello
Karina Chertok Bittencourt
Iris Cristina Datsch Toebe
author_sort Rafael Rodrigues de Souza
collection DOAJ
description ABSTRACT: This study analyzed the response of the Bartlett test as a function of sample size and to define the optimal sample size for the test with soybean grain yield data. Six experiments were conducted in a randomized block design with 20 or 30 cultivars and three repetitions. Grain yield was determined per plant, totaling 9,000 sampled plants. Next, sample scenarios of 1, 2, ..., 100 plants were simulated and the optimal sample size was defined via maximum curvature points. The increase in sampled plants per experimental unit favors Bartlett test’s precision. Also, the sampling of 17 to 20 plants per experimental unit is enough to maintain the accuracy of the test.
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spelling doaj.art-e8c338c247e9499e9ffd4318189f97bf2022-12-22T01:38:25ZengUniversidade Federal de Santa MariaCiência Rural1678-45962022-08-0153610.1590/0103-8478cr20220110Optimizing Bartlett test: a grain yield analysis in soybeanRafael Rodrigues de Souzahttps://orcid.org/0000-0002-7068-4079Marcos Toebehttps://orcid.org/0000-0003-2033-1467Anderson Chuquel Mellohttps://orcid.org/0000-0003-4509-957XKarina Chertok Bittencourthttps://orcid.org/0000-0002-4127-0715Iris Cristina Datsch Toebehttps://orcid.org/0000-0001-6831-6624ABSTRACT: This study analyzed the response of the Bartlett test as a function of sample size and to define the optimal sample size for the test with soybean grain yield data. Six experiments were conducted in a randomized block design with 20 or 30 cultivars and three repetitions. Grain yield was determined per plant, totaling 9,000 sampled plants. Next, sample scenarios of 1, 2, ..., 100 plants were simulated and the optimal sample size was defined via maximum curvature points. The increase in sampled plants per experimental unit favors Bartlett test’s precision. Also, the sampling of 17 to 20 plants per experimental unit is enough to maintain the accuracy of the test.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782023000600201&tlng=enanalysis of varianceexperimental planningGlycine maxmathematical assumptions.
spellingShingle Rafael Rodrigues de Souza
Marcos Toebe
Anderson Chuquel Mello
Karina Chertok Bittencourt
Iris Cristina Datsch Toebe
Optimizing Bartlett test: a grain yield analysis in soybean
Ciência Rural
analysis of variance
experimental planning
Glycine max
mathematical assumptions.
title Optimizing Bartlett test: a grain yield analysis in soybean
title_full Optimizing Bartlett test: a grain yield analysis in soybean
title_fullStr Optimizing Bartlett test: a grain yield analysis in soybean
title_full_unstemmed Optimizing Bartlett test: a grain yield analysis in soybean
title_short Optimizing Bartlett test: a grain yield analysis in soybean
title_sort optimizing bartlett test a grain yield analysis in soybean
topic analysis of variance
experimental planning
Glycine max
mathematical assumptions.
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782023000600201&tlng=en
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