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dc.contributor.authorPACHECO, C. A. P.pt_BR
dc.contributor.authorSANTOS, M. X. dospt_BR
dc.contributor.authorCRUZ, C. D.pt_BR
dc.contributor.authorPARENTONI, S. N.pt_BR
dc.contributor.authorGUIMARAES, P. E. de O.pt_BR
dc.contributor.authorGAMA, E. E. G. ept_BR
dc.contributor.authorSILVA, A. E. dept_BR
dc.contributor.authorCARVALHO, H. W. L.pt_BR
dc.date.accessioned2011-04-10T11:11:11Zpt_BR
dc.date.available2011-04-10T11:11:11Zpt_BR
dc.date.created2004-12-20pt_BR
dc.date.issued2002pt_BR
dc.identifier.citationGenetics and Molecular Biology, Ribeirão Preto, v. 25, n. 4, p. 441-448, 2002.pt_BR
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/488462pt_BR
dc.descriptionThe study of inbreeding depression is important for breeding strategies such as use of inbred progenies or extraction of inbreed lines. A diallel of 28 maize open-pollinated varieties was evaluated in 10 environments in the early 1990s. At the same time, S1 populations for each of the 28 varieties were evaluated in the same 10 experiments (environments). Yield reductions of the populations from S0 to S1 (mean of the 10 environments), varied from 34.6% (CMS-01) to 59.2% (CMS-30), with an average of 49.1%. Inbreeding depression was greater in populations with a wider genetic base, which had never been exposed to inbreeding (CMS-30, BR-107, PH4, Cunha, Saracura, Nitrodent, and Nitroflint). Inbred lines with greater yield means should be obtained from the BR-105, BR-111, CMS-01, CMS-03, BR-106, CMS-14c, and CMS-28 populations. The use of parameter estimates generated by analysis of inbreeding depression, allow to make inferences about frequencies of deleterious alleles in the population. The frequencies of favorable alleles in the parents can be obtained by diallel analysis. The association of these two types of information, can provide a better interpretation of the genetic parameters and also can improve the process of selection of parents for either an intra- or an inter-populational breeding program.pt_BR
dc.language.isoengeng
dc.rightsopenAccesseng
dc.subjectEndogamypt_BR
dc.subjectMaizept_BR
dc.subjectDiallelpt_BR
dc.titleInbreeding depression of 28 maize elite open pollinated varieties.pt_BR
dc.typeArtigo de periódicopt_BR
dc.date.updated2018-05-30T11:11:11Zpt_BR
dc.subject.nalthesaurusbreedingpt_BR
dc.subject.nalthesaurusinbreeding depressionpt_BR
riaa.ainfo.id488462pt_BR
riaa.ainfo.lastupdate2018-05-30 -03:00:00pt_BR
dc.contributor.institutionCLESO ANTONIO PATTO PACHECO, CNPMS; SIDNEY NETTO PARENTONI, CNPMS; PAULO EVARISTO DE O GUIMARAES, CNPMS.pt_BR
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