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vol.36 issue1Eight cycles of selection among and within half-sib families in the IAC-1 maize populationEffect of herbicides on the anatomy of Cenchrus echinatus and Euphorbia heterophylla author indexsubject indexarticles search
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Bragantia

Print version ISSN 0006-8705On-line version ISSN 1678-4499

Abstract

POMMER, Celso Valdevino; MIRANDA, Luiz Torres de; MIRANDA, Luiz Eugênio Coelho de  and  SAWAZAKI, Eduardo. Estimates of genetic parameters in the IAC-1 opaque-2 maize population. Bragantia [online]. 1977, vol.36, n.1, pp.197-205. ISSN 0006-8705.  https://doi.org/10.1590/S0006-87051977000100019.

Progeny tests used for the improvement of IAC-1 opaque-2 maize population led to estimates of a series of genetic parameters. Estimates obtained for variance among half-sib progenies, coefficient of genetic variance and aditive genetic variance permit to come to a conclusion that population will continue reacting favorably to selection. The estimates of expected progress in selection were quite proximate with the observed progress showing great efficiency in the methodology. Estimates of these genetic parameters of IAC-1 opaque-2 showed to be of great value in the study of selection in this population permiting reliable prediction of the genetic progress.

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