Genetic variability of the components of seed yield in interspecific hybrids of Paspalum
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista Brasileira de Zootecnia (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982017000400296 |
Resumo: | ABSTRACT This study aimed to determine the variability and expression of the components of seed yield in twenty-three apomictic Paspalum plicatulum × Paspalum lepton hybrids and two male parent plants (P. lepton). We used a randomized block design with genotypes individually arranged into ten blocks. The variables were: number of total tillers/plant, number of vegetative tillers/plant, number of reproductive tillers/plant, percentage of reproductive tillers, number of racemes/inflorescence, number of seeds/inflorescence, weight of a thousand seeds, and seed yield. We assessed genetic variability using multivariate procedures: generalized Mahalanobis distance, Tocher's clustering optimization method, and quantification of the relative contribution of the variables. The quantification of variability, based on the components of seed yield of Paspalum plicatulum × Paspalum lepton hybrids, allows the formation of six groups of genotypes using Tocher's method, with high means for the characteristics studied. Weight of a thousand seeds and number of seeds/inflorescence were the traits that most contributed to the genetic dissimilarity. Genetic crosses involving genotype 10E5052 from group VI and 10E4071 from group V could be undertaken to isolate high yielding segregants, since these genotypes have high seed yielding potential. |
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Genetic variability of the components of seed yield in interspecific hybrids of Paspalumapomitic genotypesPlicatulaseed productionweight of thousand seedsABSTRACT This study aimed to determine the variability and expression of the components of seed yield in twenty-three apomictic Paspalum plicatulum × Paspalum lepton hybrids and two male parent plants (P. lepton). We used a randomized block design with genotypes individually arranged into ten blocks. The variables were: number of total tillers/plant, number of vegetative tillers/plant, number of reproductive tillers/plant, percentage of reproductive tillers, number of racemes/inflorescence, number of seeds/inflorescence, weight of a thousand seeds, and seed yield. We assessed genetic variability using multivariate procedures: generalized Mahalanobis distance, Tocher's clustering optimization method, and quantification of the relative contribution of the variables. The quantification of variability, based on the components of seed yield of Paspalum plicatulum × Paspalum lepton hybrids, allows the formation of six groups of genotypes using Tocher's method, with high means for the characteristics studied. Weight of a thousand seeds and number of seeds/inflorescence were the traits that most contributed to the genetic dissimilarity. Genetic crosses involving genotype 10E5052 from group VI and 10E4071 from group V could be undertaken to isolate high yielding segregants, since these genotypes have high seed yielding potential.Sociedade Brasileira de Zootecnia2017-04-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982017000400296Revista Brasileira de Zootecnia v.46 n.4 2017reponame:Revista Brasileira de Zootecnia (Online)instname:Sociedade Brasileira de Zootecnia (SBZ)instacron:SBZ10.1590/s1806-92902017000400004info:eu-repo/semantics/openAccessLopes,Rodrigo RamosSouza,Cleber Henrique Lopes dePereira,Emerson AndréGasparetto,Bruno FrosiDall'Agnol,MiguelFranke,Lucia Brandãoeng2017-06-06T00:00:00Zoai:scielo:S1516-35982017000400296Revistahttps://www.rbz.org.br/pt-br/https://old.scielo.br/oai/scielo-oai.php||bz@sbz.org.br|| secretariarbz@sbz.org.br1806-92901516-3598opendoar:2017-06-06T00:00Revista Brasileira de Zootecnia (Online) - Sociedade Brasileira de Zootecnia (SBZ)false |
dc.title.none.fl_str_mv |
Genetic variability of the components of seed yield in interspecific hybrids of Paspalum |
title |
Genetic variability of the components of seed yield in interspecific hybrids of Paspalum |
spellingShingle |
Genetic variability of the components of seed yield in interspecific hybrids of Paspalum Lopes,Rodrigo Ramos apomitic genotypes Plicatula seed production weight of thousand seeds |
title_short |
Genetic variability of the components of seed yield in interspecific hybrids of Paspalum |
title_full |
Genetic variability of the components of seed yield in interspecific hybrids of Paspalum |
title_fullStr |
Genetic variability of the components of seed yield in interspecific hybrids of Paspalum |
title_full_unstemmed |
Genetic variability of the components of seed yield in interspecific hybrids of Paspalum |
title_sort |
Genetic variability of the components of seed yield in interspecific hybrids of Paspalum |
author |
Lopes,Rodrigo Ramos |
author_facet |
Lopes,Rodrigo Ramos Souza,Cleber Henrique Lopes de Pereira,Emerson André Gasparetto,Bruno Frosi Dall'Agnol,Miguel Franke,Lucia Brandão |
author_role |
author |
author2 |
Souza,Cleber Henrique Lopes de Pereira,Emerson André Gasparetto,Bruno Frosi Dall'Agnol,Miguel Franke,Lucia Brandão |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Lopes,Rodrigo Ramos Souza,Cleber Henrique Lopes de Pereira,Emerson André Gasparetto,Bruno Frosi Dall'Agnol,Miguel Franke,Lucia Brandão |
dc.subject.por.fl_str_mv |
apomitic genotypes Plicatula seed production weight of thousand seeds |
topic |
apomitic genotypes Plicatula seed production weight of thousand seeds |
description |
ABSTRACT This study aimed to determine the variability and expression of the components of seed yield in twenty-three apomictic Paspalum plicatulum × Paspalum lepton hybrids and two male parent plants (P. lepton). We used a randomized block design with genotypes individually arranged into ten blocks. The variables were: number of total tillers/plant, number of vegetative tillers/plant, number of reproductive tillers/plant, percentage of reproductive tillers, number of racemes/inflorescence, number of seeds/inflorescence, weight of a thousand seeds, and seed yield. We assessed genetic variability using multivariate procedures: generalized Mahalanobis distance, Tocher's clustering optimization method, and quantification of the relative contribution of the variables. The quantification of variability, based on the components of seed yield of Paspalum plicatulum × Paspalum lepton hybrids, allows the formation of six groups of genotypes using Tocher's method, with high means for the characteristics studied. Weight of a thousand seeds and number of seeds/inflorescence were the traits that most contributed to the genetic dissimilarity. Genetic crosses involving genotype 10E5052 from group VI and 10E4071 from group V could be undertaken to isolate high yielding segregants, since these genotypes have high seed yielding potential. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-04-01 |
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=S1516-35982017000400296 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982017000400296 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/s1806-92902017000400004 |
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 Zootecnia |
publisher.none.fl_str_mv |
Sociedade Brasileira de Zootecnia |
dc.source.none.fl_str_mv |
Revista Brasileira de Zootecnia v.46 n.4 2017 reponame:Revista Brasileira de Zootecnia (Online) instname:Sociedade Brasileira de Zootecnia (SBZ) instacron:SBZ |
instname_str |
Sociedade Brasileira de Zootecnia (SBZ) |
instacron_str |
SBZ |
institution |
SBZ |
reponame_str |
Revista Brasileira de Zootecnia (Online) |
collection |
Revista Brasileira de Zootecnia (Online) |
repository.name.fl_str_mv |
Revista Brasileira de Zootecnia (Online) - Sociedade Brasileira de Zootecnia (SBZ) |
repository.mail.fl_str_mv |
||bz@sbz.org.br|| secretariarbz@sbz.org.br |
_version_ |
1750318152277819392 |