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| Carvalho,Humberto Fanelli; Silva,Felipe Lopes da; Resende,Marcos Deon Vilela de; Bhering,Leonardo Lopes. |
| ABSTRACT Selection of hybrid coffee plants coming from crosses between divergent populations is particularly relevant for the success of breeding programs. This study aimed to outline the best selection strategy in a hybrid population of Coffea canephora var. kouilou and robusta by estimating intrapopulation genetic parameters. Twenty full-sib progenies obtained by North Caroline II were installed in a randomized complete blocks design, with one plant per elementary plot. The following traits were evaluated: vegetative vigor, reaction to rust, plant height, diameter of canopy projection, maturity time, and bean yield. Significant individual genotypic variance and heritability estimates lead to an effective selection. The multi-trait selection index carried... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mixed models; Multi-trait index; Intrapopulation selection; Coffea canephora. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052019000100052 |
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| Caixeta,Débora Santos; Fritsche-Neto,Roberto; Batista,Lorena Guimarães; Carvalho,Humberto Fanelli; DoVale,Júlio César; Lanes,Éder Cristian Malta de; Miranda,Glauco Vieira. |
| The objective of this study was to determine the relationship between heterosis and genetic divergence for phosphorus use efficiency (PUE) in tropical maize. It was used two groups of genitors, each consisting of seven lines, contrasting with each other in the nitrogen and phosphorus use efficiency. It was obtained 41 hybrid combinations between these groups, which were evaluated in low phosphorus. Randomized complete block design with two replications was used. For obtaining the components of variance and the breeding values were used REML/BLUP method. In the genotyping of the parental lines were used 80 microsatellite markers. Through the correlation between genetic distance obtained by the markers and specific combining ability it was not possible to... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Dissimilarity; Abiotic stress; Molecular markers; Combining ability. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782013000100011 |
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