Early selection for growth vigor in rubber tree genotypes in northwestern São Paulo State (Brazil)

Detalhes bibliográficos
Autor(a) principal: Gonçalves,Paulo de Souza
Data de Publicação: 1998
Outros Autores: Bortoletto,Nelson, Fonseca,Fernando da Silva, Bataglia,Ondino Cleante, Ortolani,Altino Aldo
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Genetics and Molecular Biology
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47571998000400018
Resumo: Forty-five genotypes (clones) of rubber tree [Hevea brasiliensis (Willd. ex Adr. de Juss.) Müell. Arg.] of different origins were assessed for efficiency of early selection at the Votuporanga Experimental Station in northwestern São Paulo State, Brazil, using a randomized complete block design with three replications and six plants per plot. Girth at 120 cm above the highest point of the grafting union of each tree was taken at ages 12, 24, 36, 48, 60, 72, 84 and 96 months. Highly significant differences in girth were detected among the genotypes at all ages evaluated, except for 12 months. Estimates of genetic variance for two age sets showed a substantial increase with age, while the genotype variation decreased. Selection made at 24 months proved to be the most efficient, giving a superior gain per unit of time.
id SBG-1_f1d866ca9a24c42470614d7faf5fb607
oai_identifier_str oai:scielo:S1415-47571998000400018
network_acronym_str SBG-1
network_name_str Genetics and Molecular Biology
repository_id_str
spelling Early selection for growth vigor in rubber tree genotypes in northwestern São Paulo State (Brazil)Forty-five genotypes (clones) of rubber tree [Hevea brasiliensis (Willd. ex Adr. de Juss.) Müell. Arg.] of different origins were assessed for efficiency of early selection at the Votuporanga Experimental Station in northwestern São Paulo State, Brazil, using a randomized complete block design with three replications and six plants per plot. Girth at 120 cm above the highest point of the grafting union of each tree was taken at ages 12, 24, 36, 48, 60, 72, 84 and 96 months. Highly significant differences in girth were detected among the genotypes at all ages evaluated, except for 12 months. Estimates of genetic variance for two age sets showed a substantial increase with age, while the genotype variation decreased. Selection made at 24 months proved to be the most efficient, giving a superior gain per unit of time.Sociedade Brasileira de Genética1998-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47571998000400018Genetics and Molecular Biology v.21 n.4 1998reponame:Genetics and Molecular Biologyinstname:Sociedade Brasileira de Genética (SBG)instacron:SBG10.1590/S1415-47571998000400018info:eu-repo/semantics/openAccessGonçalves,Paulo de SouzaBortoletto,NelsonFonseca,Fernando da SilvaBataglia,Ondino CleanteOrtolani,Altino Aldoeng1999-03-01T00:00:00Zoai:scielo:S1415-47571998000400018Revistahttp://www.gmb.org.br/ONGhttps://old.scielo.br/oai/scielo-oai.php||editor@gmb.org.br1678-46851415-4757opendoar:1999-03-01T00:00Genetics and Molecular Biology - Sociedade Brasileira de Genética (SBG)false
dc.title.none.fl_str_mv Early selection for growth vigor in rubber tree genotypes in northwestern São Paulo State (Brazil)
title Early selection for growth vigor in rubber tree genotypes in northwestern São Paulo State (Brazil)
spellingShingle Early selection for growth vigor in rubber tree genotypes in northwestern São Paulo State (Brazil)
Gonçalves,Paulo de Souza
title_short Early selection for growth vigor in rubber tree genotypes in northwestern São Paulo State (Brazil)
title_full Early selection for growth vigor in rubber tree genotypes in northwestern São Paulo State (Brazil)
title_fullStr Early selection for growth vigor in rubber tree genotypes in northwestern São Paulo State (Brazil)
title_full_unstemmed Early selection for growth vigor in rubber tree genotypes in northwestern São Paulo State (Brazil)
title_sort Early selection for growth vigor in rubber tree genotypes in northwestern São Paulo State (Brazil)
author Gonçalves,Paulo de Souza
author_facet Gonçalves,Paulo de Souza
Bortoletto,Nelson
Fonseca,Fernando da Silva
Bataglia,Ondino Cleante
Ortolani,Altino Aldo
author_role author
author2 Bortoletto,Nelson
Fonseca,Fernando da Silva
Bataglia,Ondino Cleante
Ortolani,Altino Aldo
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Gonçalves,Paulo de Souza
Bortoletto,Nelson
Fonseca,Fernando da Silva
Bataglia,Ondino Cleante
Ortolani,Altino Aldo
description Forty-five genotypes (clones) of rubber tree [Hevea brasiliensis (Willd. ex Adr. de Juss.) Müell. Arg.] of different origins were assessed for efficiency of early selection at the Votuporanga Experimental Station in northwestern São Paulo State, Brazil, using a randomized complete block design with three replications and six plants per plot. Girth at 120 cm above the highest point of the grafting union of each tree was taken at ages 12, 24, 36, 48, 60, 72, 84 and 96 months. Highly significant differences in girth were detected among the genotypes at all ages evaluated, except for 12 months. Estimates of genetic variance for two age sets showed a substantial increase with age, while the genotype variation decreased. Selection made at 24 months proved to be the most efficient, giving a superior gain per unit of time.
publishDate 1998
dc.date.none.fl_str_mv 1998-12-01
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=S1415-47571998000400018
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47571998000400018
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1415-47571998000400018
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 Sociedade Brasileira de Genética
publisher.none.fl_str_mv Sociedade Brasileira de Genética
dc.source.none.fl_str_mv Genetics and Molecular Biology v.21 n.4 1998
reponame:Genetics and Molecular Biology
instname:Sociedade Brasileira de Genética (SBG)
instacron:SBG
instname_str Sociedade Brasileira de Genética (SBG)
instacron_str SBG
institution SBG
reponame_str Genetics and Molecular Biology
collection Genetics and Molecular Biology
repository.name.fl_str_mv Genetics and Molecular Biology - Sociedade Brasileira de Genética (SBG)
repository.mail.fl_str_mv ||editor@gmb.org.br
_version_ 1752122377054978048

Registros relacionados