Comparison of analyses types in carrot experiment: square lattice versus randomized blocks design

Detalhes bibliográficos
Autor(a) principal: Carvalho,Agnaldo DF
Data de Publicação: 2018
Outros Autores: Silva,Giovani O
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Horticultura Brasileira
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362018000200217
Resumo: ABSTRACT The square lattice 4x4 design was compared to a randomized block design, for carrot F1 hybrids. Sixteen experimental carrot hybrids were evaluated in Brasília, in 2014/15 and 2015/16 agricultural years. A square lattice 4x4 design with three replications was used. The experimental plot consisted of 1.5 m2 useful area. The experimental area was installed on the second half of November 2014 and 2015. Cultural practices were the usually given to the carrot crop in Brazilian savannah region. The incidence of leaf blight was evaluated 90 days after sowing date and, after 100 days, roots were harvested and yield components evaluated. We evaluated the three possible analyses in lattice: 1) as randomized block design; 2) intrablock analysis with adjusted treatments and blocks within unadjusted repetitions; 3) analysis with recovery of interblock information with adjusted treatments. The analysis in lattice permitted to reduce the mean squares of error and coefficients of variation; moreover, these were more efficient than the randomized block design experiments for most evaluated characters. Thus, use of the analysis in lattice is preferred in experiments with carrot when evaluating large number of treatments.
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spelling Comparison of analyses types in carrot experiment: square lattice versus randomized blocks designDaucus carotaexperimental designincomplete blockABSTRACT The square lattice 4x4 design was compared to a randomized block design, for carrot F1 hybrids. Sixteen experimental carrot hybrids were evaluated in Brasília, in 2014/15 and 2015/16 agricultural years. A square lattice 4x4 design with three replications was used. The experimental plot consisted of 1.5 m2 useful area. The experimental area was installed on the second half of November 2014 and 2015. Cultural practices were the usually given to the carrot crop in Brazilian savannah region. The incidence of leaf blight was evaluated 90 days after sowing date and, after 100 days, roots were harvested and yield components evaluated. We evaluated the three possible analyses in lattice: 1) as randomized block design; 2) intrablock analysis with adjusted treatments and blocks within unadjusted repetitions; 3) analysis with recovery of interblock information with adjusted treatments. The analysis in lattice permitted to reduce the mean squares of error and coefficients of variation; moreover, these were more efficient than the randomized block design experiments for most evaluated characters. Thus, use of the analysis in lattice is preferred in experiments with carrot when evaluating large number of treatments.Associação Brasileira de Horticultura2018-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362018000200217Horticultura Brasileira v.36 n.2 2018reponame:Horticultura Brasileirainstname:Associação Brasileira de Horticultura (ABH)instacron:ABH10.1590/s0102-053620180212info:eu-repo/semantics/openAccessCarvalho,Agnaldo DFSilva,Giovani Oeng2018-10-09T00:00:00Zoai:scielo:S0102-05362018000200217Revistahttp://cms.horticulturabrasileira.com.br/ONGhttps://old.scielo.br/oai/scielo-oai.php||hortbras@gmail.com1806-99910102-0536opendoar:2018-10-09T00:00Horticultura Brasileira - Associação Brasileira de Horticultura (ABH)false
dc.title.none.fl_str_mv Comparison of analyses types in carrot experiment: square lattice versus randomized blocks design
title Comparison of analyses types in carrot experiment: square lattice versus randomized blocks design
spellingShingle Comparison of analyses types in carrot experiment: square lattice versus randomized blocks design
Carvalho,Agnaldo DF
Daucus carota
experimental design
incomplete block
title_short Comparison of analyses types in carrot experiment: square lattice versus randomized blocks design
title_full Comparison of analyses types in carrot experiment: square lattice versus randomized blocks design
title_fullStr Comparison of analyses types in carrot experiment: square lattice versus randomized blocks design
title_full_unstemmed Comparison of analyses types in carrot experiment: square lattice versus randomized blocks design
title_sort Comparison of analyses types in carrot experiment: square lattice versus randomized blocks design
author Carvalho,Agnaldo DF
author_facet Carvalho,Agnaldo DF
Silva,Giovani O
author_role author
author2 Silva,Giovani O
author2_role author
dc.contributor.author.fl_str_mv Carvalho,Agnaldo DF
Silva,Giovani O
dc.subject.por.fl_str_mv Daucus carota
experimental design
incomplete block
topic Daucus carota
experimental design
incomplete block
description ABSTRACT The square lattice 4x4 design was compared to a randomized block design, for carrot F1 hybrids. Sixteen experimental carrot hybrids were evaluated in Brasília, in 2014/15 and 2015/16 agricultural years. A square lattice 4x4 design with three replications was used. The experimental plot consisted of 1.5 m2 useful area. The experimental area was installed on the second half of November 2014 and 2015. Cultural practices were the usually given to the carrot crop in Brazilian savannah region. The incidence of leaf blight was evaluated 90 days after sowing date and, after 100 days, roots were harvested and yield components evaluated. We evaluated the three possible analyses in lattice: 1) as randomized block design; 2) intrablock analysis with adjusted treatments and blocks within unadjusted repetitions; 3) analysis with recovery of interblock information with adjusted treatments. The analysis in lattice permitted to reduce the mean squares of error and coefficients of variation; moreover, these were more efficient than the randomized block design experiments for most evaluated characters. Thus, use of the analysis in lattice is preferred in experiments with carrot when evaluating large number of treatments.
publishDate 2018
dc.date.none.fl_str_mv 2018-06-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
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dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362018000200217
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dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/s0102-053620180212
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dc.publisher.none.fl_str_mv Associação Brasileira de Horticultura
publisher.none.fl_str_mv Associação Brasileira de Horticultura
dc.source.none.fl_str_mv Horticultura Brasileira v.36 n.2 2018
reponame:Horticultura Brasileira
instname:Associação Brasileira de Horticultura (ABH)
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reponame_str Horticultura Brasileira
collection Horticultura Brasileira
repository.name.fl_str_mv Horticultura Brasileira - Associação Brasileira de Horticultura (ABH)
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