Evaluation of seven stiff-stalk and five non-stiff-stalk corn populations, hybrids, and S1's

dc.contributor.advisor Kendall Lamkey
dc.contributor.author Scheffler, Thomas
dc.contributor.department Agronomy
dc.date 2018-08-25T03:45:17.000
dc.date.accessioned 2020-06-30T07:25:19Z
dc.date.available 2020-06-30T07:25:19Z
dc.date.copyright Sun Jan 01 00:00:00 UTC 2006
dc.date.issued 2006-01-01
dc.description.abstract <p>Performance of corn (Zea mays L.) breeding programs is based on germplasm selection of breeding populations and the ability to recognize and utilize heterotic patterns. The objective of this research is to identify superior corn populations that could be useful germplasm sources in producing inbreds for hybrid corn production. Population hybrids were produced using seven Stiff-Stalk and five Non-Stiff-Stalk populations. The 35 F1 hybrids and the original 12 populations were evaluated in an S0 randomized complete block design experiment at five locations in Iowa during 2003 and 2004. Concurrently, each of the 35 hybrids and 12 populations were selfed and evaluated in an S1 experiment at the same locations and years. Data were collected for grain yield, grain moisture, root and stalk lodging, and plant and ear height for both S0 and S1 experiments. Analysis of variance was performed following the Gardner and Eberhart Analysis II model. General combining ability (GCA) and specific combining ability (SCA) were calculated for each population and population hybrid respectfully. The population hybrid of BS10(FR)C14/BS29(R)C3 showed the most potential. This cross of Corn Belt germplasm with exotic germplasm was the best population hybrid. BSSS(R)C14 had the highest GCA for grain yield of the Stiff-Stalk populations. BSCB1(R)C14 and BS11(FR)C14 had the highest GCA for the Non-Stiff-Stalk populations.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/rtd/1299/
dc.identifier.articleid 2298
dc.identifier.contextkey 6093759
dc.identifier.doi https://doi.org/10.31274/rtd-180813-12058
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath rtd/1299
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/66418
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/rtd/1299/r_3217313.pdf|||Fri Jan 14 19:34:38 UTC 2022
dc.subject.disciplines Agricultural Science
dc.subject.disciplines Agriculture
dc.subject.disciplines Agronomy and Crop Sciences
dc.subject.keywords Agronomy
dc.subject.keywords Plant breeding
dc.title Evaluation of seven stiff-stalk and five non-stiff-stalk corn populations, hybrids, and S1's
dc.type article
dc.type.genre dissertation
dspace.entity.type Publication
relation.isOrgUnitOfPublication fdd5c06c-bdbe-469c-a38e-51e664fece7a
thesis.degree.level dissertation
thesis.degree.name Doctor of Philosophy
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