Genetic divergence among maize hybrids and correlations with heterosis and combining ability - doi: 10.4025/actasciagron.v34i1.11979
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | por eng |
Título da fonte: | Acta Scientiarum. Agronomy (Online) |
Texto Completo: | http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/11979 |
Resumo: | Twelve corn hybrids recommended for cropping in the south-central region of the Paraná State and 66 crossings obtained among these hybrids were evaluated for agronomic and morphological traits. These genotypes were evaluated in three experiments performed in Laranjeiras do Sul, Guarapuava and Cantagalo, Paraná State, Brazil. Heterosis and specific combining ability (SCA) were estimated for yield of husked ears. Data from measuring 22 morphological/agronomical traits of the parents were subjected to a multivariate joint analysis of variance and cluster analysis to group the parental hybrids via the neighbor method, using the generalized Mahalanobis distance. Pearson correlation coefficients between heterosis, SCA, D2 and yield of husked ears were obtained. The cross P30F44 x Sprint displayed a high mean and a high heterosis for yield of husked ears, but a moderate estimate of genetic divergence. Estimates of genetic divergence were not effective at predicting the most heterotic crossings, as Pearson correlation coefficients between D2 and heterosis and D2 and CEC were not significant. Positive significant correlations were observed between yield means and CEC and heterosis. |
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Acta Scientiarum. Agronomy (Online) |
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Genetic divergence among maize hybrids and correlations with heterosis and combining ability - doi: 10.4025/actasciagron.v34i1.11979Zea maysspecific combining abilityMahalanobis distanceplant breedingMelhoramento VegetalZea maysspecific combining abilityMahalanobis distanceplant breedingMelhoramento Vegetal Twelve corn hybrids recommended for cropping in the south-central region of the Paraná State and 66 crossings obtained among these hybrids were evaluated for agronomic and morphological traits. These genotypes were evaluated in three experiments performed in Laranjeiras do Sul, Guarapuava and Cantagalo, Paraná State, Brazil. Heterosis and specific combining ability (SCA) were estimated for yield of husked ears. Data from measuring 22 morphological/agronomical traits of the parents were subjected to a multivariate joint analysis of variance and cluster analysis to group the parental hybrids via the neighbor method, using the generalized Mahalanobis distance. Pearson correlation coefficients between heterosis, SCA, D2 and yield of husked ears were obtained. The cross P30F44 x Sprint displayed a high mean and a high heterosis for yield of husked ears, but a moderate estimate of genetic divergence. Estimates of genetic divergence were not effective at predicting the most heterotic crossings, as Pearson correlation coefficients between D2 and heterosis and D2 and CEC were not significant. Positive significant correlations were observed between yield means and CEC and heterosis. Universidade Estadual de Maringá2011-07-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionfieldworkfieldworkapplication/pdfapplication/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/1197910.4025/actasciagron.v34i1.11979Acta Scientiarum. Agronomy; Vol 34 No 1 (2012); 37-44Acta Scientiarum. Agronomy; v. 34 n. 1 (2012); 37-441807-86211679-9275reponame:Acta Scientiarum. Agronomy (Online)instname:Universidade Estadual de Maringá (UEM)instacron:UEMporenghttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/11979/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/11979/8257Oliboni, RodrigoFaria, Marcos VenturaNeumann, MikaelBattistelli, Guilherme MendesTegoni, Rafael GalloResende, Juliano Tadeu Vilela deinfo:eu-repo/semantics/openAccess2022-11-23T18:38:27Zoai:periodicos.uem.br/ojs:article/11979Revistahttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgronPUBhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/oaiactaagron@uem.br||actaagron@uem.br|| edamasio@uem.br1807-86211679-9275opendoar:2022-11-23T18:38:27Acta Scientiarum. Agronomy (Online) - Universidade Estadual de Maringá (UEM)false |
dc.title.none.fl_str_mv |
Genetic divergence among maize hybrids and correlations with heterosis and combining ability - doi: 10.4025/actasciagron.v34i1.11979 |
title |
Genetic divergence among maize hybrids and correlations with heterosis and combining ability - doi: 10.4025/actasciagron.v34i1.11979 |
spellingShingle |
Genetic divergence among maize hybrids and correlations with heterosis and combining ability - doi: 10.4025/actasciagron.v34i1.11979 Oliboni, Rodrigo Zea mays specific combining ability Mahalanobis distance plant breeding Melhoramento Vegetal Zea mays specific combining ability Mahalanobis distance plant breeding Melhoramento Vegetal |
title_short |
Genetic divergence among maize hybrids and correlations with heterosis and combining ability - doi: 10.4025/actasciagron.v34i1.11979 |
title_full |
Genetic divergence among maize hybrids and correlations with heterosis and combining ability - doi: 10.4025/actasciagron.v34i1.11979 |
title_fullStr |
Genetic divergence among maize hybrids and correlations with heterosis and combining ability - doi: 10.4025/actasciagron.v34i1.11979 |
title_full_unstemmed |
Genetic divergence among maize hybrids and correlations with heterosis and combining ability - doi: 10.4025/actasciagron.v34i1.11979 |
title_sort |
Genetic divergence among maize hybrids and correlations with heterosis and combining ability - doi: 10.4025/actasciagron.v34i1.11979 |
author |
Oliboni, Rodrigo |
author_facet |
Oliboni, Rodrigo Faria, Marcos Ventura Neumann, Mikael Battistelli, Guilherme Mendes Tegoni, Rafael Gallo Resende, Juliano Tadeu Vilela de |
author_role |
author |
author2 |
Faria, Marcos Ventura Neumann, Mikael Battistelli, Guilherme Mendes Tegoni, Rafael Gallo Resende, Juliano Tadeu Vilela de |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Oliboni, Rodrigo Faria, Marcos Ventura Neumann, Mikael Battistelli, Guilherme Mendes Tegoni, Rafael Gallo Resende, Juliano Tadeu Vilela de |
dc.subject.por.fl_str_mv |
Zea mays specific combining ability Mahalanobis distance plant breeding Melhoramento Vegetal Zea mays specific combining ability Mahalanobis distance plant breeding Melhoramento Vegetal |
topic |
Zea mays specific combining ability Mahalanobis distance plant breeding Melhoramento Vegetal Zea mays specific combining ability Mahalanobis distance plant breeding Melhoramento Vegetal |
description |
Twelve corn hybrids recommended for cropping in the south-central region of the Paraná State and 66 crossings obtained among these hybrids were evaluated for agronomic and morphological traits. These genotypes were evaluated in three experiments performed in Laranjeiras do Sul, Guarapuava and Cantagalo, Paraná State, Brazil. Heterosis and specific combining ability (SCA) were estimated for yield of husked ears. Data from measuring 22 morphological/agronomical traits of the parents were subjected to a multivariate joint analysis of variance and cluster analysis to group the parental hybrids via the neighbor method, using the generalized Mahalanobis distance. Pearson correlation coefficients between heterosis, SCA, D2 and yield of husked ears were obtained. The cross P30F44 x Sprint displayed a high mean and a high heterosis for yield of husked ears, but a moderate estimate of genetic divergence. Estimates of genetic divergence were not effective at predicting the most heterotic crossings, as Pearson correlation coefficients between D2 and heterosis and D2 and CEC were not significant. Positive significant correlations were observed between yield means and CEC and heterosis. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-07-06 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion fieldwork fieldwork |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/11979 10.4025/actasciagron.v34i1.11979 |
url |
http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/11979 |
identifier_str_mv |
10.4025/actasciagron.v34i1.11979 |
dc.language.iso.fl_str_mv |
por eng |
language |
por eng |
dc.relation.none.fl_str_mv |
http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/11979/pdf http://www.periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/11979/8257 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Estadual de Maringá |
publisher.none.fl_str_mv |
Universidade Estadual de Maringá |
dc.source.none.fl_str_mv |
Acta Scientiarum. Agronomy; Vol 34 No 1 (2012); 37-44 Acta Scientiarum. Agronomy; v. 34 n. 1 (2012); 37-44 1807-8621 1679-9275 reponame:Acta Scientiarum. Agronomy (Online) instname:Universidade Estadual de Maringá (UEM) instacron:UEM |
instname_str |
Universidade Estadual de Maringá (UEM) |
instacron_str |
UEM |
institution |
UEM |
reponame_str |
Acta Scientiarum. Agronomy (Online) |
collection |
Acta Scientiarum. Agronomy (Online) |
repository.name.fl_str_mv |
Acta Scientiarum. Agronomy (Online) - Universidade Estadual de Maringá (UEM) |
repository.mail.fl_str_mv |
actaagron@uem.br||actaagron@uem.br|| edamasio@uem.br |
_version_ |
1799305908195426304 |