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Selection and genetic parameters for interpopulation hybrids between kouilou and robusta coffee

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dc.contributor.author Carvalho, Humberto Fanelli
dc.contributor.author Silva, Felipe Lopes da
dc.contributor.author Resende, Marcos Deon Vilela de
dc.contributor.author Bhering, Leonardo Lopes
dc.date.accessioned 2021-12-02T11:31:46Z
dc.date.available 2021-12-02T11:31:46Z
dc.date.issued 2019
dc.identifier.citation CARVALHO, H. F. et al Selection and genetic parameters for interpopulation hybrids between kouilou and robusta coffee. Bragantia, Campinas, v. 78, n. 1, p. 52-59, jan./mar. 2019. pt_BR
dc.identifier.issn 1678-4499
dc.identifier.uri https://doi.org/10.1590/1678-4499.2018124 pt_BR
dc.identifier.uri http://www.sbicafe.ufv.br/handle/123456789/12855
dc.description.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 elementar 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 out between progenies and at individual level provided 5% and 40% gain, respectively. Thus, intrapopulation selection in a hybrid population is a viable strategy for the selection of superior individuals to compose new crosses and clones for cultivars in the breeding program of C. canephora, even with unbalanced data. pt_BR
dc.format pdf pt_BR
dc.language.iso en pt_BR
dc.publisher Instituto Agronômico (IAC) pt_BR
dc.relation.ispartofseries Bragantia;v.78, n.1, 2019
dc.rights Open Access pt_BR
dc.subject Mixed models pt_BR
dc.subject Multi-trait index pt_BR
dc.subject Intrapopulation selection pt_BR
dc.subject Coffea canephora pt_BR
dc.subject.classification Cafeicultura::Genética e melhoramento pt_BR
dc.title Selection and genetic parameters for interpopulation hybrids between kouilou and robusta coffee pt_BR
dc.type Artigo pt_BR

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