Genetic variability and selection for laticiferous system characters in Hevea brasiliensis

Detalhes bibliográficos
Autor(a) principal: Gonçalves,Paulo de Souza
Data de Publicação: 2005
Outros Autores: Cardinal,Átila Bento Beleti, Costa,Reginaldo Brito da, Bortoletto,Nelson, Gouvêa,Lígia Regina Lima
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=S1415-47572005000300014
Resumo: Six laticiferous system characters were investigated in 22 three-year-old, half-sib rubber tree [Hevea brasiliensis (Willd. ex Adr. de Juss.) Muell.-Arg.] progenies, evaluated at three sites (Votuporanga, Pindorama and Jaú, all in the São Paulo State, Brazil). The traits examined were: average rubber yield (Pp), average bark thickness (Bt), number of latex vessel rings (Lv), average distance between consecutive latex vessel rings (Dc), density of latex vessels per 5 mm per ring averaged over all rings (Dd) and the diameter of the latex vessels (Di). The joint analysis showed that site effect and progeny x sites interaction were significant for all traits, except Lv. Estimates of individual heritabilities across the three sites were high for Bt; moderate for Lv, Pp and Dc; low for Dd and very low for Di. Genetic correlations in the joint analysis showed high positive correlations between Pp and the other traits. Selecting the best five progenies would result in genetic gains of 24.91% for Pp while selecting best two plants within a progeny would result in a Pp genetic gain of 30.98%.
id SBG-1_28670763b824ad66a80993cf8f3ed404
oai_identifier_str oai:scielo:S1415-47572005000300014
network_acronym_str SBG-1
network_name_str Genetics and Molecular Biology
repository_id_str
spelling Genetic variability and selection for laticiferous system characters in Hevea brasiliensisHevea brasiliensisrubber yieldlaticiferous traitsgenetic parametersSix laticiferous system characters were investigated in 22 three-year-old, half-sib rubber tree [Hevea brasiliensis (Willd. ex Adr. de Juss.) Muell.-Arg.] progenies, evaluated at three sites (Votuporanga, Pindorama and Jaú, all in the São Paulo State, Brazil). The traits examined were: average rubber yield (Pp), average bark thickness (Bt), number of latex vessel rings (Lv), average distance between consecutive latex vessel rings (Dc), density of latex vessels per 5 mm per ring averaged over all rings (Dd) and the diameter of the latex vessels (Di). The joint analysis showed that site effect and progeny x sites interaction were significant for all traits, except Lv. Estimates of individual heritabilities across the three sites were high for Bt; moderate for Lv, Pp and Dc; low for Dd and very low for Di. Genetic correlations in the joint analysis showed high positive correlations between Pp and the other traits. Selecting the best five progenies would result in genetic gains of 24.91% for Pp while selecting best two plants within a progeny would result in a Pp genetic gain of 30.98%.Sociedade Brasileira de Genética2005-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572005000300014Genetics and Molecular Biology v.28 n.3 2005reponame:Genetics and Molecular Biologyinstname:Sociedade Brasileira de Genética (SBG)instacron:SBG10.1590/S1415-47572005000300014info:eu-repo/semantics/openAccessGonçalves,Paulo de SouzaCardinal,Átila Bento BeletiCosta,Reginaldo Brito daBortoletto,NelsonGouvêa,Lígia Regina Limaeng2005-09-05T00:00:00Zoai:scielo:S1415-47572005000300014Revistahttp://www.gmb.org.br/ONGhttps://old.scielo.br/oai/scielo-oai.php||editor@gmb.org.br1678-46851415-4757opendoar:2005-09-05T00:00Genetics and Molecular Biology - Sociedade Brasileira de Genética (SBG)false
dc.title.none.fl_str_mv Genetic variability and selection for laticiferous system characters in Hevea brasiliensis
title Genetic variability and selection for laticiferous system characters in Hevea brasiliensis
spellingShingle Genetic variability and selection for laticiferous system characters in Hevea brasiliensis
Gonçalves,Paulo de Souza
Hevea brasiliensis
rubber yield
laticiferous traits
genetic parameters
title_short Genetic variability and selection for laticiferous system characters in Hevea brasiliensis
title_full Genetic variability and selection for laticiferous system characters in Hevea brasiliensis
title_fullStr Genetic variability and selection for laticiferous system characters in Hevea brasiliensis
title_full_unstemmed Genetic variability and selection for laticiferous system characters in Hevea brasiliensis
title_sort Genetic variability and selection for laticiferous system characters in Hevea brasiliensis
author Gonçalves,Paulo de Souza
author_facet Gonçalves,Paulo de Souza
Cardinal,Átila Bento Beleti
Costa,Reginaldo Brito da
Bortoletto,Nelson
Gouvêa,Lígia Regina Lima
author_role author
author2 Cardinal,Átila Bento Beleti
Costa,Reginaldo Brito da
Bortoletto,Nelson
Gouvêa,Lígia Regina Lima
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Gonçalves,Paulo de Souza
Cardinal,Átila Bento Beleti
Costa,Reginaldo Brito da
Bortoletto,Nelson
Gouvêa,Lígia Regina Lima
dc.subject.por.fl_str_mv Hevea brasiliensis
rubber yield
laticiferous traits
genetic parameters
topic Hevea brasiliensis
rubber yield
laticiferous traits
genetic parameters
description Six laticiferous system characters were investigated in 22 three-year-old, half-sib rubber tree [Hevea brasiliensis (Willd. ex Adr. de Juss.) Muell.-Arg.] progenies, evaluated at three sites (Votuporanga, Pindorama and Jaú, all in the São Paulo State, Brazil). The traits examined were: average rubber yield (Pp), average bark thickness (Bt), number of latex vessel rings (Lv), average distance between consecutive latex vessel rings (Dc), density of latex vessels per 5 mm per ring averaged over all rings (Dd) and the diameter of the latex vessels (Di). The joint analysis showed that site effect and progeny x sites interaction were significant for all traits, except Lv. Estimates of individual heritabilities across the three sites were high for Bt; moderate for Lv, Pp and Dc; low for Dd and very low for Di. Genetic correlations in the joint analysis showed high positive correlations between Pp and the other traits. Selecting the best five progenies would result in genetic gains of 24.91% for Pp while selecting best two plants within a progeny would result in a Pp genetic gain of 30.98%.
publishDate 2005
dc.date.none.fl_str_mv 2005-09-01
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=S1415-47572005000300014
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572005000300014
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1415-47572005000300014
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.28 n.3 2005
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_ 1752122379519131648

Registros relacionados