Vigor assessment of juvenile rubber tree clones in Northwestern São Paulo State, Brazil

Detalhes bibliográficos
Autor(a) principal: Gonçalves,Elaine Cristine Piffer
Data de Publicação: 2021
Outros Autores: Gouvêa,Lígia Regina Lima, Martins,Antonio Lúcio Mello, Branco,Roberto Botelho Ferraz, Gonçalves,Paulo de Souza
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista Ceres
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0034-737X2021000600564
Resumo: ABSTRACT Besides rubber production, one of the main goals of the genetic improvement of rubber tree [Hevea brasiliensis (Willd. ex Adr. de Juss.) Muell. Arg.] is to develop vigorous clones. The objective of the present study was to evaluate the vigor of 34 elite juvenile rubber clones. To this end, three experiments were conducted in the municipality of Pontes Gestal, in the northwest region of the São Paulo State. Each experiment consisted of 10 treatments, and 2 controls in common to the 3 experiments. The experiments were arranged in the randomized block design, with three replications and ten plants per plot, in the 8 m x 2.5 m spacing. Individual and joint analyses of variance were performed. The means were compared using the Dunnett test at 5%. Significant effect of treatments was found in the three experiments and in the joint analysis. The most vigorous clones were not different from the controls in the comparison of means by the individual and joint analyses. The less vigorous clones were statistically different from the others and from the controls, reflecting this difference in the genetic variability observed. The breeding program must consider the lack of difference between the most vigorous clones and the controls when recombining superior clones, since genetic gain depends on variability.
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spelling Vigor assessment of juvenile rubber tree clones in Northwestern São Paulo State, Braziljoint analysisDunnet testrubber tree girthgenetic variabilityABSTRACT Besides rubber production, one of the main goals of the genetic improvement of rubber tree [Hevea brasiliensis (Willd. ex Adr. de Juss.) Muell. Arg.] is to develop vigorous clones. The objective of the present study was to evaluate the vigor of 34 elite juvenile rubber clones. To this end, three experiments were conducted in the municipality of Pontes Gestal, in the northwest region of the São Paulo State. Each experiment consisted of 10 treatments, and 2 controls in common to the 3 experiments. The experiments were arranged in the randomized block design, with three replications and ten plants per plot, in the 8 m x 2.5 m spacing. Individual and joint analyses of variance were performed. The means were compared using the Dunnett test at 5%. Significant effect of treatments was found in the three experiments and in the joint analysis. The most vigorous clones were not different from the controls in the comparison of means by the individual and joint analyses. The less vigorous clones were statistically different from the others and from the controls, reflecting this difference in the genetic variability observed. The breeding program must consider the lack of difference between the most vigorous clones and the controls when recombining superior clones, since genetic gain depends on variability.Universidade Federal de Viçosa2021-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0034-737X2021000600564Revista Ceres v.68 n.6 2021reponame:Revista Ceresinstname:Universidade Federal de Viçosa (UFV)instacron:UFV10.1590/0034-737x202168060008info:eu-repo/semantics/openAccessGonçalves,Elaine Cristine PifferGouvêa,Lígia Regina LimaMartins,Antonio Lúcio MelloBranco,Roberto Botelho FerrazGonçalves,Paulo de Souzaeng2021-11-30T00:00:00ZRevista
dc.title.none.fl_str_mv Vigor assessment of juvenile rubber tree clones in Northwestern São Paulo State, Brazil
title Vigor assessment of juvenile rubber tree clones in Northwestern São Paulo State, Brazil
spellingShingle Vigor assessment of juvenile rubber tree clones in Northwestern São Paulo State, Brazil
Gonçalves,Elaine Cristine Piffer
joint analysis
Dunnet test
rubber tree girth
genetic variability
title_short Vigor assessment of juvenile rubber tree clones in Northwestern São Paulo State, Brazil
title_full Vigor assessment of juvenile rubber tree clones in Northwestern São Paulo State, Brazil
title_fullStr Vigor assessment of juvenile rubber tree clones in Northwestern São Paulo State, Brazil
title_full_unstemmed Vigor assessment of juvenile rubber tree clones in Northwestern São Paulo State, Brazil
title_sort Vigor assessment of juvenile rubber tree clones in Northwestern São Paulo State, Brazil
author Gonçalves,Elaine Cristine Piffer
author_facet Gonçalves,Elaine Cristine Piffer
Gouvêa,Lígia Regina Lima
Martins,Antonio Lúcio Mello
Branco,Roberto Botelho Ferraz
Gonçalves,Paulo de Souza
author_role author
author2 Gouvêa,Lígia Regina Lima
Martins,Antonio Lúcio Mello
Branco,Roberto Botelho Ferraz
Gonçalves,Paulo de Souza
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Gonçalves,Elaine Cristine Piffer
Gouvêa,Lígia Regina Lima
Martins,Antonio Lúcio Mello
Branco,Roberto Botelho Ferraz
Gonçalves,Paulo de Souza
dc.subject.por.fl_str_mv joint analysis
Dunnet test
rubber tree girth
genetic variability
topic joint analysis
Dunnet test
rubber tree girth
genetic variability
dc.description.none.fl_txt_mv ABSTRACT Besides rubber production, one of the main goals of the genetic improvement of rubber tree [Hevea brasiliensis (Willd. ex Adr. de Juss.) Muell. Arg.] is to develop vigorous clones. The objective of the present study was to evaluate the vigor of 34 elite juvenile rubber clones. To this end, three experiments were conducted in the municipality of Pontes Gestal, in the northwest region of the São Paulo State. Each experiment consisted of 10 treatments, and 2 controls in common to the 3 experiments. The experiments were arranged in the randomized block design, with three replications and ten plants per plot, in the 8 m x 2.5 m spacing. Individual and joint analyses of variance were performed. The means were compared using the Dunnett test at 5%. Significant effect of treatments was found in the three experiments and in the joint analysis. The most vigorous clones were not different from the controls in the comparison of means by the individual and joint analyses. The less vigorous clones were statistically different from the others and from the controls, reflecting this difference in the genetic variability observed. The breeding program must consider the lack of difference between the most vigorous clones and the controls when recombining superior clones, since genetic gain depends on variability.
description ABSTRACT Besides rubber production, one of the main goals of the genetic improvement of rubber tree [Hevea brasiliensis (Willd. ex Adr. de Juss.) Muell. Arg.] is to develop vigorous clones. The objective of the present study was to evaluate the vigor of 34 elite juvenile rubber clones. To this end, three experiments were conducted in the municipality of Pontes Gestal, in the northwest region of the São Paulo State. Each experiment consisted of 10 treatments, and 2 controls in common to the 3 experiments. The experiments were arranged in the randomized block design, with three replications and ten plants per plot, in the 8 m x 2.5 m spacing. Individual and joint analyses of variance were performed. The means were compared using the Dunnett test at 5%. Significant effect of treatments was found in the three experiments and in the joint analysis. The most vigorous clones were not different from the controls in the comparison of means by the individual and joint analyses. The less vigorous clones were statistically different from the others and from the controls, reflecting this difference in the genetic variability observed. The breeding program must consider the lack of difference between the most vigorous clones and the controls when recombining superior clones, since genetic gain depends on variability.
publishDate 2021
dc.date.none.fl_str_mv 2021-12-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0034-737X2021000600564
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0034-737X2021000600564
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/0034-737x202168060008
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Universidade Federal de Viçosa
publisher.none.fl_str_mv Universidade Federal de Viçosa
dc.source.none.fl_str_mv Revista Ceres v.68 n.6 2021
reponame:Revista Ceres
instname:Universidade Federal de Viçosa (UFV)
instacron:UFV
instname_str Universidade Federal de Viçosa (UFV)
instacron_str UFV
institution UFV
reponame_str Revista Ceres
collection Revista Ceres
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