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Registro Completo |
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
09/05/2008 |
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Data da última atualização: |
29/11/2018 |
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Tipo da produção científica: |
Documentos |
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Autoria: |
EMBRAPA. Centro de Pesquisa Agropecuária do Trópico Semi-Árido. |
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Título: |
Programa de Melhoramento e Manejo de Pastagem PROPASTO/Nordeste: relatório técnico anual -1978. |
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Ano de publicação: |
1979 |
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Fonte/Imprenta: |
Petrolina, 1979. |
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Páginas: |
111 p. |
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Idioma: |
Português |
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Conteúdo: |
Este relatório anual do PROPASTO/NORDESTE tem a finalidade de relatar as atividades técnicas desenvolvidas por este programa durante o ano de 1978, para dar ciência a administração superior dos órgãos convenentes (BNB-BACEN e EMBRAPA) O seu conteúdo relata a atuação dos técnicos vinculados a este Programa, num esforço para encontrar tecnologias que alterem a maneira tradicional de exploração extrativista e degradadora das áreas de pastagem no Nordeste. |
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Palavras-Chave: |
Melhoramento de pastagem; Nordeste; PROPASTO. |
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Thesagro: |
Pastagem; Pastejo; Planta Forrageira; Produção animal; Sistema de Pastejo. |
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Thesaurus Nal: |
Animal production. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/187339/1/Programa-de-melhoramento-e-manejo-de-pastagem.-Propasto-Nordeste.pdf
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Marc: |
LEADER 01146nam a2200229 a 4500
001 1148545
005 2018-11-29
008 1979 bl uuuu 00u1 u #d
100 1 $aEMBRAPA. Centro de Pesquisa Agropecuária do Trópico Semi-Árido.
245 $aPrograma de Melhoramento e Manejo de Pastagem PROPASTO/Nordeste$brelatório técnico anual -1978.
260 $aPetrolina, 1979.$c1979
300 $a111 p.
520 $aEste relatório anual do PROPASTO/NORDESTE tem a finalidade de relatar as atividades técnicas desenvolvidas por este programa durante o ano de 1978, para dar ciência a administração superior dos órgãos convenentes (BNB-BACEN e EMBRAPA) O seu conteúdo relata a atuação dos técnicos vinculados a este Programa, num esforço para encontrar tecnologias que alterem a maneira tradicional de exploração extrativista e degradadora das áreas de pastagem no Nordeste.
650 $aAnimal production
650 $aPastagem
650 $aPastejo
650 $aPlanta Forrageira
650 $aProdução animal
650 $aSistema de Pastejo
653 $aMelhoramento de pastagem
653 $aNordeste
653 $aPROPASTO
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Registro original: |
Embrapa Semiárido (CPATSA) |
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Registro Completo
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
05/09/2002 |
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Data da última atualização: |
04/04/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SANTOS, V. da S.; RAMALHO, M. A. P.; CARNEIRO, J. E. de S.; ABREU, A. de F. B. |
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Afiliação: |
VANDERLEI DA SILVA SANTOS, UFLA; MAGNO ANTONIO PATTO RAMALHO, UFLA; JOSE EUSTAQUIO DE SOUZA CARNEIRO, UFV; ANGELA DE FATIMA BARBOSA ABREU, CNPAF. |
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Título: |
Consequences of early selection for grain type in common bean breeding. |
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Ano de publicação: |
2001 |
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Fonte/Imprenta: |
Crop Breeding and Applied Biotechnology, v. 1, n. 4, p. 347-354, Dec. 2001. |
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Idioma: |
Inglês |
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Conteúdo: |
The common bean grain color is controlled by a large number of genes, probably distributed in all the chromosomes. Therefore, early selection for this trait is likely to cause an expressive reduction in the variability of other traits such as grain yield, which is the main objective of most breeding programs. This study was carried out to verify the effect of early (F2 generation) selection for grain type on grain yield in more advanced generations. The F2 population from the cross between the Ouro Negro (black grains) and Pérola (?carioca? - cream with brown stripes) type grains was used. The harvest seeds were divided into two groups, one with ?carioca? grains and another of mixed type, where no selection was applied. The F3 plants of both sub-populations were individually harvested resulting in 199 families per sub-populations. These 398 F3:4 families and the parent cultivars were assessed during the year 2000 dry season in Lavras and the F3:5 families in the winter of 2000 in Lavras and in Patos de Minas. On average, no yield differences among the non-selected and selected for grain type family means were detected. It was also observed that the heritability estimates were high and similar. It is, therefore, inferred that early (F2 generation) selection for grain type did not reduce the potential of the population for selection of superior inbred lines. Consequently, strong selection for grain color in the F2 generation, to screen out undesirable types will enable breeders to concentrate their efforts on the selection of other traits in the advanced generations. Only families with commercially acceptable grain type will be submitted to selection, increasing the chances of success. MenosThe common bean grain color is controlled by a large number of genes, probably distributed in all the chromosomes. Therefore, early selection for this trait is likely to cause an expressive reduction in the variability of other traits such as grain yield, which is the main objective of most breeding programs. This study was carried out to verify the effect of early (F2 generation) selection for grain type on grain yield in more advanced generations. The F2 population from the cross between the Ouro Negro (black grains) and Pérola (?carioca? - cream with brown stripes) type grains was used. The harvest seeds were divided into two groups, one with ?carioca? grains and another of mixed type, where no selection was applied. The F3 plants of both sub-populations were individually harvested resulting in 199 families per sub-populations. These 398 F3:4 families and the parent cultivars were assessed during the year 2000 dry season in Lavras and the F3:5 families in the winter of 2000 in Lavras and in Patos de Minas. On average, no yield differences among the non-selected and selected for grain type family means were detected. It was also observed that the heritability estimates were high and similar. It is, therefore, inferred that early (F2 generation) selection for grain type did not reduce the potential of the population for selection of superior inbred lines. Consequently, strong selection for grain color in the F2 generation, to screen out undesirable types will enable breeder... Mostrar Tudo |
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Thesagro: |
Feijão; Genética; Grão; Melhoramento Genético Vegetal; Phaseolus Vulgaris; Seleção; Semente. |
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Categoria do assunto: |
G Melhoramento Genético |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/79616/1/Santos1-cbab.pdf
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Marc: |
LEADER 02420naa a2200241 a 4500
001 1210424
005 2022-04-04
008 2001 bl uuuu u00u1 u #d
100 1 $aSANTOS, V. da S.
245 $aConsequences of early selection for grain type in common bean breeding.$h[electronic resource]
260 $c2001
520 $aThe common bean grain color is controlled by a large number of genes, probably distributed in all the chromosomes. Therefore, early selection for this trait is likely to cause an expressive reduction in the variability of other traits such as grain yield, which is the main objective of most breeding programs. This study was carried out to verify the effect of early (F2 generation) selection for grain type on grain yield in more advanced generations. The F2 population from the cross between the Ouro Negro (black grains) and Pérola (?carioca? - cream with brown stripes) type grains was used. The harvest seeds were divided into two groups, one with ?carioca? grains and another of mixed type, where no selection was applied. The F3 plants of both sub-populations were individually harvested resulting in 199 families per sub-populations. These 398 F3:4 families and the parent cultivars were assessed during the year 2000 dry season in Lavras and the F3:5 families in the winter of 2000 in Lavras and in Patos de Minas. On average, no yield differences among the non-selected and selected for grain type family means were detected. It was also observed that the heritability estimates were high and similar. It is, therefore, inferred that early (F2 generation) selection for grain type did not reduce the potential of the population for selection of superior inbred lines. Consequently, strong selection for grain color in the F2 generation, to screen out undesirable types will enable breeders to concentrate their efforts on the selection of other traits in the advanced generations. Only families with commercially acceptable grain type will be submitted to selection, increasing the chances of success.
650 $aFeijão
650 $aGenética
650 $aGrão
650 $aMelhoramento Genético Vegetal
650 $aPhaseolus Vulgaris
650 $aSeleção
650 $aSemente
700 1 $aRAMALHO, M. A. P.
700 1 $aCARNEIRO, J. E. de S.
700 1 $aABREU, A. de F. B.
773 $tCrop Breeding and Applied Biotechnology$gv. 1, n. 4, p. 347-354, Dec. 2001.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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