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dc.contributor.authorMORAIS JÚNIOR, O. P. dept_BR
dc.contributor.authorMELO, P. G. S.pt_BR
dc.contributor.authorMORAIS, O. P. dept_BR
dc.contributor.authorCASTRO, A. P. dept_BR
dc.contributor.authorBRESEGHELLO, F.pt_BR
dc.contributor.authorUTUMI, M. M.pt_BR
dc.contributor.authorPEREIRA, J. A.pt_BR
dc.contributor.authorWRUCK, F. J.pt_BR
dc.contributor.authorCOLOMBARI FILHO, J. M.pt_BR
dc.date.accessioned2015-07-31T11:11:11Zpt_BR
dc.date.available2015-07-31T11:11:11Zpt_BR
dc.date.created2015-07-31pt_BR
dc.date.issued2015pt_BR
dc.identifier.citationScientia Agricola, Piracicaba, v. 72, n. 4, p. 297-305, July/Aug. 2015.pt_BR
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1021101pt_BR
dc.descriptionPeriodic assessment of the genetic progress made in recurrent selection programs is essential for assessing the evolution of the programs and identifying the main factors that have contributed to this progress. This study aimed to estimate genetic progress in grain yield, plant height and days-to-flowering achieved in the CNA6 population of upland rice (Oryza sativa L.), after four cycles of recurrent selection; and evaluate the genetic potential of this population to generate superior inbred lines after each selection cycle. The experimental data were obtained from progeny yield trials of each recurrent selection cycle. These trials were carried out in two or three locations per cycle, and consisted of S0:2 progenies and at least three checks. Federer?s augmented block design, with one replication on location (the environment), was adopted. Results revealed genetic progress for grain yield and plant height, with total genetic gains of 375.87 kg ha−1 and -3.90 cm, respectively, during the four selection cycles. The annual relative gain observed for grain yield was 1.54 %. The genetic potential of the population was analysed by the expected proportion of superior inbred lines. The standard adopted as the limit for obtaining superior inbred lines was the average of the checks for each trait. The genetic potential for grain yield and plant height increased during the study period. For days-to-flowering, no genetic gain occurred; however, the genetic potential of the population to generate superior inbred lines for this trait was maintained after the selection cycles.pt_BR
dc.language.isoengeng
dc.rightsopenAccesseng
dc.titleGenetic progress after cycles of upland rice recurrent selection.pt_BR
dc.typeArtigo de periódicopt_BR
dc.date.updated2015-07-31T11:11:11Zpt_BR
dc.subject.thesagroArrozpt_BR
dc.subject.thesagroOryza sativapt_BR
dc.subject.thesagroSeleção recorrentept_BR
dc.subject.thesagroMelhoramento genético vegetalpt_BR
riaa.ainfo.id1021101pt_BR
riaa.ainfo.lastupdate2015-07-31pt_BR
dc.identifier.doi10.1590/0103-9016-2014-0137pt_BR
dc.contributor.institutionODILON PEIXOTO DE MORAIS JÚNIOR, UFG; PATRICIA GUIMARÃES SANTOS MELO, UFG; ORLANDO PEIXOTO DE MORAIS, CNPAF; ADRIANO PEREIRA DE CASTRO, CNPAF; FLAVIO BRESEGHELLO, CNPAF; MARLEY MARICO UTUMI, CPAF-RO; JOSE ALMEIDA PEREIRA, CPAMN; FLAVIO JESUS WRUCK, CNPAF; JOSE MANOEL COLOMBARI FILHO, CNPAF.pt_BR
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