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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
12/03/2019 |
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Data da última atualização: |
30/10/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CARVALHO, H. F.; SILVA, F. L. da; RESENDE, M. D. V. de; BHERING, L. L. |
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Afiliação: |
Humberto Fanelli Carvalho, Instituto Agronômico; Felipe Lopes da Silva, UFV; MARCOS DEON VILELA DE RESENDE, CNPF; Leonardo Lopes Bhering, UFV. |
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Título: |
Selection and genetic parameters for interpopulation hybrids between kouilou and robusta coffee. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Bragantia, Campinas, v. 78, n. 1, p. 52-59, Jan./Mar. 2019. |
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DOI: |
10.1590/1678-4499.2018124 |
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Idioma: |
Inglês |
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Conteúdo: |
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 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. |
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Palavras-Chave: |
Intrapopulation selection; Mixed models; Multi-trait index. |
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Thesagro: |
Café; Coffea Canephora. |
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Categoria do assunto: |
G Melhoramento Genético |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/197470/1/2019-M.Deon-B-Selection.pdf
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Marc: |
LEADER 01788naa a2200229 a 4500
001 2106924
005 2019-10-30
008 2019 bl uuuu u00u1 u #d
024 7 $a10.1590/1678-4499.2018124$2DOI
100 1 $aCARVALHO, H. F.
245 $aSelection and genetic parameters for interpopulation hybrids between kouilou and robusta coffee.$h[electronic resource]
260 $c2019
520 $aSelection 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 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.
650 $aCafé
650 $aCoffea Canephora
653 $aIntrapopulation selection
653 $aMixed models
653 $aMulti-trait index
700 1 $aSILVA, F. L. da
700 1 $aRESENDE, M. D. V. de
700 1 $aBHERING, L. L.
773 $tBragantia, Campinas$gv. 78, n. 1, p. 52-59, Jan./Mar. 2019.
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Embrapa Florestas (CNPF) |
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