Estimation of genetic variability in two maize populations

dc.contributor.author Reeder, L. R.
dc.contributor.author Lamkey, Kendall
dc.contributor.author Hallauer, A. R.
dc.contributor.author Lamkey, K. R.
dc.contributor.department Agronomy
dc.date 2018-02-19T00:18:14.000
dc.date.accessioned 2020-06-29T23:03:46Z
dc.date.available 2020-06-29T23:03:46Z
dc.date.issued 1987
dc.description.abstract <p>Reciprocal full-sib selection (FR) for yield improvement was conducted in the BS 10 and BS 11 maize (<em>Zea mays</em> L.) populations. Our objectives were to evaluate the effects of six cycles of reciprocal full-sib selection in BS 10 and BS 11 and to determine what changes had occurred in the magnitudes of additive and dominance variance resulting from six cycles of selection. Grain yield of full-sib progenies increased 6.3 percent in BS 10 and 5.7 percent in BS 11 from CO to C6. Grain yield of S<sub>1</sub> lines increased 11.6 percent in BS 10 and 26.3 percent in BS11 from C0 to C6. Estimates of additive genetic variance suggested a decrease from the C0 to C6 of BS 10 and BS 11 for yield and stalk lodging and an increase for ears per plant from BS 10C0 to BS10 (FR) C6. Estimates of dominance variance generally increased, but decreases were observed for yield and stalk lodging in BS11. The changes in the estimates of genetic variances suggest genetic variability was reduced with selection but most of the changes were small and statistically nonsignificant.</p>
dc.description.comments <p>This article is published as Reeder Jr, L. R., A. R. Hallauer, and K. R. Lamkey. "Estimation of genetic variability in two maize populations." Journal of Heredity 78, no. 6 (1987): 372-376.doi: <a href="https://doi.org/10.1093/oxfordjournals.jhered.a110419">10.1093/oxfordjournals.jhered.a110419</a>. Posted with permission.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/agron_pubs/256/
dc.identifier.articleid 1259
dc.identifier.contextkey 10945525
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath agron_pubs/256
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/4594
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/agron_pubs/256/1987_Lamkey_EstimationGenetic001.PDF|||Fri Jan 14 22:58:56 UTC 2022
dc.source.uri 10.1093/oxfordjournals.jhered.a110419
dc.subject.disciplines Agricultural Science
dc.subject.disciplines Agronomy and Crop Sciences
dc.subject.disciplines Genetics and Genomics
dc.subject.disciplines Plant Breeding and Genetics
dc.title Estimation of genetic variability in two maize populations
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication fadecd27-89f7-4164-8981-ce39d1a066e1
relation.isOrgUnitOfPublication fdd5c06c-bdbe-469c-a38e-51e664fece7a
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