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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
05/10/2004 |
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Data da última atualização: |
14/10/2004 |
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Autoria: |
REIS, E. F. dos; REIS, M. S.; CRUZ, C. D.; SEDIYAMA, T.; TEIXEIRA, R. de C. |
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Título: |
Predicted and realized gains of different selection strategies in soybean populations: a comparative study. |
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Ano de publicação: |
2002 |
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Fonte/Imprenta: |
Crop Breeding and Applied Biotechnology, Londrina, v. 2, n. 1, p. 61-69, Mar. 2002. |
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Idioma: |
Inglês |
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Conteúdo: |
Genetic gains from selection on yield were predicted in three soybean populations using original data and data corrected by the variation in agronomic traits of check cultivars. Predicted gains were compared to realized gains after correction for agricultural season effects - caused by environmental differences during the prediction and checking growing seasons - to indicate the best selection strategy and check the influence on yield of selection on the other traits assessed in the field. Individual selection, selection among and within families and combined selected were used for grain yield alone and for simultaneous selection on grain yield, plant height and number or days to maturity traits. Selection was made on F5 generation platns grown in an experimental field in Viçosa, Minas Gerais State during the 1997/98 agricultural season. The experiment used intercalated check cultivars. The results indicated lower within family heriitabilities compared to the other types. Little variation was detected in gain prediction due to data correction. At field level, simultaneous selection performed better for grain yield improvement. Simultaneous gains for number of pods per plant, number of seeds per pod and mean weight of one seed, which arfe primary yield components, were obtained only when selection for the three components was balanced. |
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Palavras-Chave: |
Gain from selection; Melhoramento genético. |
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Thesagro: |
Glycine Max; População; Seleção; Soja. |
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Thesaurus Nal: |
heritability. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02101naa a2200253 a 4500
001 1212528
005 2004-10-14
008 2002 bl uuuu u00u1 u #d
100 1 $aREIS, E. F. dos
245 $aPredicted and realized gains of different selection strategies in soybean populations$ba comparative study.
260 $c2002
520 $aGenetic gains from selection on yield were predicted in three soybean populations using original data and data corrected by the variation in agronomic traits of check cultivars. Predicted gains were compared to realized gains after correction for agricultural season effects - caused by environmental differences during the prediction and checking growing seasons - to indicate the best selection strategy and check the influence on yield of selection on the other traits assessed in the field. Individual selection, selection among and within families and combined selected were used for grain yield alone and for simultaneous selection on grain yield, plant height and number or days to maturity traits. Selection was made on F5 generation platns grown in an experimental field in Viçosa, Minas Gerais State during the 1997/98 agricultural season. The experiment used intercalated check cultivars. The results indicated lower within family heriitabilities compared to the other types. Little variation was detected in gain prediction due to data correction. At field level, simultaneous selection performed better for grain yield improvement. Simultaneous gains for number of pods per plant, number of seeds per pod and mean weight of one seed, which arfe primary yield components, were obtained only when selection for the three components was balanced.
650 $aheritability
650 $aGlycine Max
650 $aPopulação
650 $aSeleção
650 $aSoja
653 $aGain from selection
653 $aMelhoramento genético
700 1 $aREIS, M. S.
700 1 $aCRUZ, C. D.
700 1 $aSEDIYAMA, T.
700 1 $aTEIXEIRA, R. de C.
773 $tCrop Breeding and Applied Biotechnology, Londrina$gv. 2, n. 1, p. 61-69, Mar. 2002.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
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Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
03/02/2016 |
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Data da última atualização: |
03/02/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
MENEZES, B. R. S.; DAHER, R. F.; GRAVINA, G. de A.; PEREIRA, A. V.; SOUSA, L. B.; RODRIGUES, E. V.; SILVA, V. B.; GOTTARDO, R. D.; SCHNEIDER, L. S. A.; NOVO, A. A. C. |
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Afiliação: |
Bruna R.S. Menezes, Universidade Estadual do Norte Fluminense; Rogerio F. Daher, Universidade Estadual do Norte Fluminense; Geraldo de A. Gravina, Universidade Estadual do Norte Fluminense; ANTONIO VANDER PEREIRA, CNPGL; Liliane B. Sousa, Universidade Estadual do Norte Fluminense; Erina V. Rodrigues, Universidade Estadual do Norte Fluminense; Veronica B. Silva, Universidade Estadual do Norte Fluminense; Romildo D. Gottardo, Universidade Estadual do Norte Fluminense; Larissa S.A. Schneider, Universidade Estadual do Norte Fluminense; Antonio A.C. Novo, Instituto Federal Fluminense. |
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Título: |
Estimates of heterosis parameters in elephant grass (Pennisetum purpureum Schumach.) for bioenergy production. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
Chilean Journal of Agricultural Research, v.75, n.4, p. 395-401, 2015. |
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Idioma: |
Inglês |
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Conteúdo: |
With a high growth rate and a DM yield of up to 80 t ha-1 yr-1, elephant grass (Pennisetum purpureum Schumach.) has been utilized as an alternative source of energy. However, genotypes adapted to and productive in the different regions of Brazil need to be developed. Thus, the objectives of the present study were to estimate and evaluate heterotic effects in elephant-grass hybrids obtained in a partial diallel cross (5 × 5), with the aim of assisting the superior hybrids selection for bioenergy production. The experiment was conducted in Campos dos Goytacazes, Rio de Janeiro, Brazil. The following traits were evaluated: plant height (HGT), stem diameter (SD), leaf blade width (LBW), number of tillers per linear meter (NT), percentage of DM (%DM), and DM yield (DMY). The experiment was conducted in a randomized block design, with 35 treatments (five female parents, five male parents, and 25 hybrid combinations) and three replicates. The adopted statistical model was that of Miranda Filho and Geraldi, in an adaptation of Gardner and Eberhart. Significant heterosis was observed for most traits in the rainy and dry seasons. Hybrid combinations H1 (?Cubano Pinda? × ?Mercker?), H7 (?Cameroon-Piracicaba? × ?Três Rios?), H8 (?Cameroon-Piracicaba? × ?Mercker 86-México?), H17 (?IAC-Campinas? × ?Três Rios?), H18 (?IAC-Campinas? × ?Mercker 86-México?), and H25 (?Guaçu/IZ.2? × ?Roxo?) showed potential for use in breeding programs that aiming at develop clones with a energy biomass production capacity high. MenosWith a high growth rate and a DM yield of up to 80 t ha-1 yr-1, elephant grass (Pennisetum purpureum Schumach.) has been utilized as an alternative source of energy. However, genotypes adapted to and productive in the different regions of Brazil need to be developed. Thus, the objectives of the present study were to estimate and evaluate heterotic effects in elephant-grass hybrids obtained in a partial diallel cross (5 × 5), with the aim of assisting the superior hybrids selection for bioenergy production. The experiment was conducted in Campos dos Goytacazes, Rio de Janeiro, Brazil. The following traits were evaluated: plant height (HGT), stem diameter (SD), leaf blade width (LBW), number of tillers per linear meter (NT), percentage of DM (%DM), and DM yield (DMY). The experiment was conducted in a randomized block design, with 35 treatments (five female parents, five male parents, and 25 hybrid combinations) and three replicates. The adopted statistical model was that of Miranda Filho and Geraldi, in an adaptation of Gardner and Eberhart. Significant heterosis was observed for most traits in the rainy and dry seasons. Hybrid combinations H1 (?Cubano Pinda? × ?Mercker?), H7 (?Cameroon-Piracicaba? × ?Três Rios?), H8 (?Cameroon-Piracicaba? × ?Mercker 86-México?), H17 (?IAC-Campinas? × ?Três Rios?), H18 (?IAC-Campinas? × ?Mercker 86-México?), and H25 (?Guaçu/IZ.2? × ?Roxo?) showed potential for use in breeding programs that aiming at develop clones with a energy biomass produc... Mostrar Tudo |
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Palavras-Chave: |
Alternative energy; Elephant grass. |
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Thesaurus NAL: |
hybrids. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/138353/1/Cnpgl-2015-ChileanJAR-Estimates.pdf
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Marc: |
LEADER 02335naa a2200265 a 4500
001 2036011
005 2024-02-03
008 2015 bl uuuu u00u1 u #d
100 1 $aMENEZES, B. R. S.
245 $aEstimates of heterosis parameters in elephant grass (Pennisetum purpureum Schumach.) for bioenergy production.$h[electronic resource]
260 $c2015
520 $aWith a high growth rate and a DM yield of up to 80 t ha-1 yr-1, elephant grass (Pennisetum purpureum Schumach.) has been utilized as an alternative source of energy. However, genotypes adapted to and productive in the different regions of Brazil need to be developed. Thus, the objectives of the present study were to estimate and evaluate heterotic effects in elephant-grass hybrids obtained in a partial diallel cross (5 × 5), with the aim of assisting the superior hybrids selection for bioenergy production. The experiment was conducted in Campos dos Goytacazes, Rio de Janeiro, Brazil. The following traits were evaluated: plant height (HGT), stem diameter (SD), leaf blade width (LBW), number of tillers per linear meter (NT), percentage of DM (%DM), and DM yield (DMY). The experiment was conducted in a randomized block design, with 35 treatments (five female parents, five male parents, and 25 hybrid combinations) and three replicates. The adopted statistical model was that of Miranda Filho and Geraldi, in an adaptation of Gardner and Eberhart. Significant heterosis was observed for most traits in the rainy and dry seasons. Hybrid combinations H1 (?Cubano Pinda? × ?Mercker?), H7 (?Cameroon-Piracicaba? × ?Três Rios?), H8 (?Cameroon-Piracicaba? × ?Mercker 86-México?), H17 (?IAC-Campinas? × ?Três Rios?), H18 (?IAC-Campinas? × ?Mercker 86-México?), and H25 (?Guaçu/IZ.2? × ?Roxo?) showed potential for use in breeding programs that aiming at develop clones with a energy biomass production capacity high.
650 $ahybrids
653 $aAlternative energy
653 $aElephant grass
700 1 $aDAHER, R. F.
700 1 $aGRAVINA, G. de A.
700 1 $aPEREIRA, A. V.
700 1 $aSOUSA, L. B.
700 1 $aRODRIGUES, E. V.
700 1 $aSILVA, V. B.
700 1 $aGOTTARDO, R. D.
700 1 $aSCHNEIDER, L. S. A.
700 1 $aNOVO, A. A. C.
773 $tChilean Journal of Agricultural Research$gv.75, n.4, p. 395-401, 2015.
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Embrapa Gado de Leite (CNPGL) |
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