Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/447456
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dc.contributor.authorTOLEDO, J. F. F. dept_BR
dc.contributor.authorARIAS, C. A. A.pt_BR
dc.contributor.authorOLIVEIRA, M. F. dept_BR
dc.contributor.authorTRILLER, C.pt_BR
dc.contributor.authorMIRANDA, Z. de F. S.pt_BR
dc.date.accessioned2011-04-09T17:12:12Z-
dc.date.available2011-04-09T17:12:12Z-
dc.date.created2003-04-16pt_BR
dc.date.issued2000pt_BR
dc.identifier.citationPesquisa Agropecuária Brasileira, Brasília, v. 35, n. 9, p. 1783-1796, set. 2000.pt_BR
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/447456pt_BR
dc.descriptionThe yearly genetic progress obtained by breeding for increased soybean yield has been considered acceptable worldwide. It is common sense, however, that this progress can be improved further if refined breeding techniques, developed from the knowledge of the genetic mechanisms controlling soybean yield, are used. In this paper, data from four cultivars and/or lines and their derived sets of F2, F3, F7, F8, F9 and F10 generations assayed in 17 environments were analyzed to allow an insight of the genetic control of soybean yield under different environmental conditions. The general picture was of a complex polygene system controlling yield in soybeans. Additive genetic effects predominated although dominance was often found to be significant. Complications such as epistasis, linkage and macro and micro genotype x environment (G x E) interactions were also commonly detected. The overall heritability was 0.29. The relative magnitude of the additive effects and the complicating factors allowed the inference that the latter are not a serious problem to the breeder. The low heritability values and the considerable magnitude of G x E interactions for yield, however, indicated that careful evaluation through experiments designed to allow for the presence of these effects is necessary for successful selection.pt_BR
dc.language.isoengeng
dc.rightsopenAccesseng
dc.titleGenetical and environmental analyses of yield in six biparental soybean crosses.pt_BR
dc.typeArtigo de periódicopt_BR
dc.date.updated2011-04-10T11:11:11Zpt_BR
riaa.ainfo.id447456pt_BR
riaa.ainfo.lastupdate2008-11-19pt_BR
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