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Registro Completo |
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Biblioteca(s): |
Biblioteca Rui Tendinha. |
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Data corrente: |
14/01/2015 |
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Data da última atualização: |
16/01/2015 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
- - - |
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Autoria: |
FERRÃO, R. G.; FERREIRA, A.; CRUZ, C. D.; CECON, P. R.; FERRÃO, M. A. G.; FONSECA, A. F. A. da.; CARNEIRO, P. C. de S.; SILVA, M. F. da |
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Afiliação: |
Romário Gava Ferrão, Incaper; Maria Amélia Gava Ferrão, Incaper/Embrapa Café; Aymbiré Francisco Almeida da Fonseca, Incaper/Embrapa Café. |
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Título: |
Inter-trait relations for direct and indirect selection in coffee. |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
Crop Breending and Applied Biotechnology, v8, n.4, p.271-278, 2008. |
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Páginas: |
271-278 |
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Idioma: |
Inglês |
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Conteúdo: |
The purpose of this study was to verify the possibility of using direct selection in nine traits underlying indirect selection for yield and determine which traits should participate in the selection process. Data of 40 Conilon coffee genotypes were analyzed in two experiments in the growing seasons of 1996, 1998, 1999, 2000 and 2001 in random blocks with four and six replications. The significance of phenotypic associations was evaluated by the t test and the genotypic and environmental associations by bootstrap resampling. The genotypic associations were higher than the phenotypic, indicating a prevailing influence of the genotypic over the environmental effects in the relationship between significant traits; equal signs indicated a lack of contrary action among the effects. The traits related to cycle; yield; ratio of fresh ripe cherries to clean coffee; empty or flat grains; and sieve 17 should be maintained in the selection, evaluation and study of genetic divergence. The estimated gains in grain yield by indirect selection for any trait studied are not satisfactory. |
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Palavras-Chave: |
Bootstrap; Melhoramento genético; Seleção direta e indireta; Testes de significância. |
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Thesagro: |
Agricultura; Biotechnology; Biotecnologia; Bootstrap; Café; Coffea canephora; Genetic improvement; Genética; Significance tests. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02137naa a2200373 a 4500
001 1004924
005 2015-01-16
008 2008 bl uuuu u00u1 u #d
100 1 $aFERRÃO, R. G.
245 $aInter-trait relations for direct and indirect selection in coffee.$h[electronic resource]
260 $c2008
300 $a271-278
520 $aThe purpose of this study was to verify the possibility of using direct selection in nine traits underlying indirect selection for yield and determine which traits should participate in the selection process. Data of 40 Conilon coffee genotypes were analyzed in two experiments in the growing seasons of 1996, 1998, 1999, 2000 and 2001 in random blocks with four and six replications. The significance of phenotypic associations was evaluated by the t test and the genotypic and environmental associations by bootstrap resampling. The genotypic associations were higher than the phenotypic, indicating a prevailing influence of the genotypic over the environmental effects in the relationship between significant traits; equal signs indicated a lack of contrary action among the effects. The traits related to cycle; yield; ratio of fresh ripe cherries to clean coffee; empty or flat grains; and sieve 17 should be maintained in the selection, evaluation and study of genetic divergence. The estimated gains in grain yield by indirect selection for any trait studied are not satisfactory.
650 $aAgricultura
650 $aBiotechnology
650 $aBiotecnologia
650 $aBootstrap
650 $aCafé
650 $aCoffea canephora
650 $aGenetic improvement
650 $aGenética
650 $aSignificance tests
653 $aBootstrap
653 $aMelhoramento genético
653 $aSeleção direta e indireta
653 $aTestes de significância
700 1 $aFERREIRA, A.
700 1 $aCRUZ, C. D.
700 1 $aCECON, P. R.
700 1 $aFERRÃO, M. A. G.
700 1 $aFONSECA, A. F. A. da.
700 1 $aCARNEIRO, P. C. de S.
700 1 $aSILVA, M. F. da
773 $tCrop Breending and Applied Biotechnology, v8$gn.4, p.271-278, 2008.
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Registro original: |
Biblioteca Rui Tendinha (BRT) |
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