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| Natura: | Artículo científico |
| Lingua: | en |
| Pubblicazione: |
Universidade Estadual de Maringá
2017
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| Accesso online: | https://www.redalyc.org/articulo.oa?id=303050431004 https://www.redalyc.org/journal/3030/303050431004/ https://www.redalyc.org/journal/3030/303050431004/html/ https://www.redalyc.org/journal/3030/303050431004/303050431004.epub https://www.redalyc.org/journal/3030/303050431004/movil |
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Sommario:
- Genetic parameter estimates and identification of superior white maize populations Sara Regina Silvestrin Rovaris André Luís Bombonato Oliveira Eduardo Sawazaki Paulo Boller Gallo Maria Elisa Ayres Guidetti Zagatto Paterniani Agrociencias Zea mays L complete diallel grits production Gardner and Eberhart In Brazil, there is a shortage of white maize cultivars and genetic studies for special maize breeding programs. This study aimed to identify popu lations and promising hybrid white maize for main agronomic traits and grits processing and to estimate the genetic parameters of parents and heterosis. In the 2012/13 growing season, fifteen hybrids were obtain ed by complete diallel cr osses, and six parental and commercial check varieties were evaluated for: female flowering (FF), ear height (EH), grain yield (GY), ear length (EL), volumetric mass (VM) and grits pr ocessing (GP) in two locations in São Paulo State, Campinas and Mococa, using a randomized block design. Analyses of variance were carried out, and diallel crosses were performed using the Gardner and Eberhart model. The populations P3 and P6 stood out because of the estimated effects of the parents and of heterosis; the studied characters are promising for obtaining new lines and forming composites. For GP, th e treatments showed no differences, implying the need to introduce new sources of germplasm. 2017 artículo científico 1679-9275 https://www.redalyc.org/articulo.oa?id=303050431004 https://www.redalyc.org/journal/3030/303050431004/ https://www.redalyc.org/journal/3030/303050431004/html/ https://www.redalyc.org/journal/3030/303050431004/303050431004.epub https://www.redalyc.org/journal/3030/303050431004/movil en http://www.redalyc.org/revista.oa?id=3030 Acta Scientiarum. Agronomy application/pdf Universidade Estadual de Maringá Acta Scientiarum. Agronomy (Brasil) Num.2 Vol.39