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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
28/10/2004 |
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Data da última atualização: |
04/11/2004 |
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Autoria: |
BACKES, R. L.; REIS, M. S.; CRUZ, C. D.; SEDIYAMA, T.; SEDIYAMA, C. S. |
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Título: |
Correlation estimates and assessment of selection strategies in five soybean populations. |
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Ano de publicação: |
2003 |
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Fonte/Imprenta: |
Crop Breeding and Applied Biotechnology, Londrina, v. 3, n. 2, p. 107-115, June 2003. |
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Idioma: |
Inglês |
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Conteúdo: |
The objectives of the study were to analyze correlation among some important traits for breeding and assess three family selection strategies in soybean populations. Five soybean populations were assessed, three in the F6 generation and two in the F5 generation in Viçosa, MG, in the 1997/98 growing season. The experiment involved non replicated families inserted with replicated controls to allow estimation of the environmental component associated to the phenotypic variance of the studied populations. This arrangement allows the estimation of genetic parameters. The estimates of genetic correlation showed that the number of pods per plant is a good indicator of grain yield. The estimates of the gains from simulation of the three selection strategies showed that the direct selection on yield strategy resulted in greatest gains for the same trait but indirect selection via number of pods per plant resulted in gains close to those of direct selection. Selection based on the Pesek and Baker index enabled grain yield gains and simultaneous reduction in the cycle and plant height, despite the positive correlation of these two traits with grain yield. |
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Palavras-Chave: |
Correlação; Gain prediction; Genetic breeding; Soybean. |
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Thesagro: |
Estimativa; Glycine Max; Soja. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01872naa a2200253 a 4500
001 1212664
005 2004-11-04
008 2003 bl uuuu u00u1 u #d
100 1 $aBACKES, R. L.
245 $aCorrelation estimates and assessment of selection strategies in five soybean populations.
260 $c2003
520 $aThe objectives of the study were to analyze correlation among some important traits for breeding and assess three family selection strategies in soybean populations. Five soybean populations were assessed, three in the F6 generation and two in the F5 generation in Viçosa, MG, in the 1997/98 growing season. The experiment involved non replicated families inserted with replicated controls to allow estimation of the environmental component associated to the phenotypic variance of the studied populations. This arrangement allows the estimation of genetic parameters. The estimates of genetic correlation showed that the number of pods per plant is a good indicator of grain yield. The estimates of the gains from simulation of the three selection strategies showed that the direct selection on yield strategy resulted in greatest gains for the same trait but indirect selection via number of pods per plant resulted in gains close to those of direct selection. Selection based on the Pesek and Baker index enabled grain yield gains and simultaneous reduction in the cycle and plant height, despite the positive correlation of these two traits with grain yield.
650 $aEstimativa
650 $aGlycine Max
650 $aSoja
653 $aCorrelação
653 $aGain prediction
653 $aGenetic breeding
653 $aSoybean
700 1 $aREIS, M. S.
700 1 $aCRUZ, C. D.
700 1 $aSEDIYAMA, T.
700 1 $aSEDIYAMA, C. S.
773 $tCrop Breeding and Applied Biotechnology, Londrina$gv. 3, n. 2, p. 107-115, June 2003.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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| 1. |  | SANTOS, L. L. dos; SANTOS, J. Z. L. dos; FURTINI NETO, A. E.; RESENDE, A. V. de; CARNEIRO, L. F.; CURI, N. Análise exploratória dos atributos químicos em solos do cerrado sob diferentes manejo e uso. In: REUNIÃO BRASILEIRA DE FERTILIDADE DO SOLO E NUTRIÇÃO DE PLANTAS, 31.; REUNIÃO BRASILEIRA SOBRE MICORRIZAS, 15.; SIMPÓSIO BRASILEIRO DE MICROBIOLOGIA DO SOLO, 13.; REUNIÃO BRASILEIRA DE BIOLOGIA DO SOLO, 10., 2014, Araxá. Fertilidade e biologia do solo: integração e tecnologias para todos: anais. Araxá: Núcleo Regional Leste da Sociedade Brasileira de Ciência do Solo, 2014. FertBio 2014.| Tipo: Resumo em Anais de Congresso |
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