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dc.contributor.authorLIMA NETO, F. P.pt_BR
dc.contributor.authorSOUZA JÚNIOR, C. L. dept_BR
dc.date.accessioned2011-04-09T21:00:07Z-
dc.date.available2011-04-09T21:00:07Z-
dc.date.created2010-03-24pt_BR
dc.date.issued2009pt_BR
dc.identifier.citationScientia Agrícola, v. 66, n. 1, p. 52-58, 2009.pt_BR
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/662267pt_BR
dc.descriptionIn maize recurrent selection programs, selected genotypes were recombined once to generate genetic variability for the next selection cycle. Selection generates negative gametic phase disequilibrium which reduces genetic variances, and this disequilibrium is not significantly reduced with only one generation of recombination. The objective of this research was to assess the effects of one additional generation of recombination on phenotypic and genotypic parameters in a maize population undergoing recurrent selection. Selected progenies of the EPB-4 population were subjected to one and two generations of recombination, and from each generation half- and full-sib progenies were developed and evaluated at three environments for grain yield, plant and ear heights, prolificacy, and ear placement. There were no significant changes between each progeny type with one and two generations of recombination for the means, ranges, phenotypic distribution of the traits, genetic variances, heritability coefficients, and genetic correlations for the traits assessed. The results suggest that an additional generation of recombination will not increase the effectiveness of maize recurrent selection programspt_BR
dc.language.isoporpt_BR
dc.rightsopenAccesspt_BR
dc.subjectMelhoramento genéticopt_BR
dc.subjectVariabilidade genéticapt_BR
dc.titleNumber of recombinations and genetic properties of a maize population undergoing recurrent selection.pt_BR
dc.typeArtigo de periódicopt_BR
dc.date.updated2011-04-10T11:11:11Zpt_BR
dc.subject.thesagroGenótipopt_BR
dc.subject.thesagroMilhopt_BR
dc.subject.nalthesaurusCornpt_BR
dc.subject.nalthesaurusGenotypept_BR
riaa.ainfo.id662267pt_BR
riaa.ainfo.lastupdate2010-04-07pt_BR
dc.contributor.institutionFRANCISCO PINHEIRO LIMA NETO, CPATSApt_BR
dc.contributor.institutionCLÁUDIO LOPES DE SOUZA JÚNIOR, UNIVERSIDADE DE SÃO PAULO.por
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