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Registro Completo |
Biblioteca(s): |
Embrapa Unidades Centrais. |
Data corrente: |
08/04/1998 |
Data da última atualização: |
30/03/2023 |
Autoria: |
AMORIM NETO, S.; ANDRADE, W. E. de B.; COSTA, R. A. da. |
Afiliação: |
SILVINO AMORIM NETO, PESAGRO-RIO-Estação Experimental de Campos; WANDER EUSTÁQUIO DE BASTOS ANDRADE, PESAGRO-RIO-Estação Experimental de Campos; RENATO ALVES DA COSTA, FESAGRO-RIO-Sede. |
Título: |
Aumento da produtividade de arroz irrigado no Estado do Rio de Janeiro de 1981/82 a 1991/92. |
Ano de publicação: |
1998 |
Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 33, n. 3, p. 369-374, mar. 1998 |
Idioma: |
Português |
Notas: |
Notas Científicas.
Título em inglês: Rice grain yield increase in Rio de Janeiro State from 1981/82 a 1991/92. |
Conteúdo: |
A presente pesquisa teve como objetivo avaliar o progresso genetico obtido pelo programa de melhoramento de arroz (Oryza sativa L.) irrigado no Estado do Rio de Janeiro de 1981/82 a 1991/92. Os dados da media de producao foram obtidos de cultivares e linhagens puras originadas de experimentos comparativos conduzidos pela Empresa de Pesquisa Agropecuaria do Rio de Janeiro - PESAGRO, de 1981/82 a 1991/92. Observou-se um ganho genetico total de 1.698 kg/ha, o que significa um ganho medio anual de 5,27%, permitindo afirmar que o programa foi eficiente no periodo considerado. |
Palavras-Chave: |
Brasil; Productivity; Rio de Janeiro. |
Thesagro: |
Arroz; Irrigação; Oryza Sativa; Produtividade. |
Thesaurus Nal: |
Brazil; rice. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/47091/1/AUMENTO-DA-PRODUTIVIDADE-DE-ARROZ-IRRIGADO-NO-ESTADO.pdf
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Marc: |
LEADER 01437naa a2200265 a 4500 001 1086352 005 2023-03-30 008 1998 bl uuuu u00u1 u #d 100 1 $aAMORIM NETO, S. 245 $aAumento da produtividade de arroz irrigado no Estado do Rio de Janeiro de 1981/82 a 1991/92.$h[electronic resource] 260 $c1998 500 $aNotas Científicas. Título em inglês: Rice grain yield increase in Rio de Janeiro State from 1981/82 a 1991/92. 520 $aA presente pesquisa teve como objetivo avaliar o progresso genetico obtido pelo programa de melhoramento de arroz (Oryza sativa L.) irrigado no Estado do Rio de Janeiro de 1981/82 a 1991/92. Os dados da media de producao foram obtidos de cultivares e linhagens puras originadas de experimentos comparativos conduzidos pela Empresa de Pesquisa Agropecuaria do Rio de Janeiro - PESAGRO, de 1981/82 a 1991/92. Observou-se um ganho genetico total de 1.698 kg/ha, o que significa um ganho medio anual de 5,27%, permitindo afirmar que o programa foi eficiente no periodo considerado. 650 $aBrazil 650 $arice 650 $aArroz 650 $aIrrigação 650 $aOryza Sativa 650 $aProdutividade 653 $aBrasil 653 $aProductivity 653 $aRio de Janeiro 700 1 $aANDRADE, W. E. de B. 700 1 $aCOSTA, R. A. da 773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 33, n. 3, p. 369-374, mar. 1998
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Embrapa Unidades Centrais (AI-SEDE) |
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Registro Completo
Biblioteca(s): |
Embrapa Arroz e Feijão. |
Data corrente: |
10/09/2021 |
Data da última atualização: |
10/09/2021 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
B - 1 |
Autoria: |
QUEIROZ, L. R. de; RODRIGUES, L. L.; MARTINS, S. M.; SOUZA, T. L. P. O. de; MELO, L. C.; PEREIRA, H. S. |
Afiliação: |
LARA RODRIGUES DE QUEIROZ; LUDIVINA LIMA RODRIGUES; SAULO MUNIZ MARTINS; THIAGO LIVIO PESSOA OLIV DE SOUZA, CNPAF; LEONARDO CUNHA MELO, CNPAF; HELTON SANTOS PEREIRA, CNPAF. |
Título: |
Recurrent selection for high iron and zinc concentrations in black bean grain. |
Ano de publicação: |
2021 |
Fonte/Imprenta: |
Bragantia, v. 80, e3121, 2021. |
ISSN: |
1678-4499 |
DOI: |
https://doi.org/10.1590/1678-4499.20200489 |
Idioma: |
Inglês |
Conteúdo: |
The iron concentration (FeC) and zinc concentration (ZnC) in common bean grain are quantitative traits, and appropriate breeding techniques are required to achieve genetic gain. The aim of this study was to obtain a recurrent selection population of black bean to increase the FeC and ZnC in the grain and to select the superior progenies for formation of the next cycle and obtain lines. The base population was formed by crosses among ten parents. A total of 351 progenies were obtained, and, after two generations of selection, the 27 best progenies were evaluated in two field trials for FeC, ZnC, 100 seed weight and yield. Analyses of variance were carried out and genetic parameters were estimated. The heritability estimates ranged from 59 to 94% for the four traits. The estimates of expected gain from direct selection for each trait (3 to 21%) and simultaneous selection (1 to 4%) indicate success from selection. The eight progenies, selected based on simultaneous selection, have superior mean values, including to those of 'BRS Supremo' (10% for FeC, 8% for ZnC, 5% for 100 seed weight and 3.8% for yield), the Brazilian black bean cultivar with the highest FeC and ZnC. The recurrent selection population shows high genetic variability and potential for obtaining lines superior to the cultivars currently on the market, allying high agronomic performance and high FeC and ZnC in the grain. Furthermore, this population shows potential for generating a new recurrent selection cycle, from recombination of the eight superior progenies. MenosThe iron concentration (FeC) and zinc concentration (ZnC) in common bean grain are quantitative traits, and appropriate breeding techniques are required to achieve genetic gain. The aim of this study was to obtain a recurrent selection population of black bean to increase the FeC and ZnC in the grain and to select the superior progenies for formation of the next cycle and obtain lines. The base population was formed by crosses among ten parents. A total of 351 progenies were obtained, and, after two generations of selection, the 27 best progenies were evaluated in two field trials for FeC, ZnC, 100 seed weight and yield. Analyses of variance were carried out and genetic parameters were estimated. The heritability estimates ranged from 59 to 94% for the four traits. The estimates of expected gain from direct selection for each trait (3 to 21%) and simultaneous selection (1 to 4%) indicate success from selection. The eight progenies, selected based on simultaneous selection, have superior mean values, including to those of 'BRS Supremo' (10% for FeC, 8% for ZnC, 5% for 100 seed weight and 3.8% for yield), the Brazilian black bean cultivar with the highest FeC and ZnC. The recurrent selection population shows high genetic variability and potential for obtaining lines superior to the cultivars currently on the market, allying high agronomic performance and high FeC and ZnC in the grain. Furthermore, this population shows potential for generating a new recurrent selection cycle, ... Mostrar Tudo |
Palavras-Chave: |
100 seed weight. |
Thesagro: |
Feijão Preto; Ferro; Melhoramento Genético Vegetal; Phaseolus Vulgaris; Produção; Seleção Recorrente; Zinco. |
Thesaurus NAL: |
Biofortification; Black beans; Iron; Plant breeding; Recurrent selection; Zinc. |
Categoria do assunto: |
G Melhoramento Genético |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/225840/1/bragantia.pdf
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Marc: |
LEADER 02582naa a2200373 a 4500 001 2134206 005 2021-09-10 008 2021 bl uuuu u00u1 u #d 022 $a1678-4499 024 7 $ahttps://doi.org/10.1590/1678-4499.20200489$2DOI 100 1 $aQUEIROZ, L. R. de 245 $aRecurrent selection for high iron and zinc concentrations in black bean grain.$h[electronic resource] 260 $c2021 520 $aThe iron concentration (FeC) and zinc concentration (ZnC) in common bean grain are quantitative traits, and appropriate breeding techniques are required to achieve genetic gain. The aim of this study was to obtain a recurrent selection population of black bean to increase the FeC and ZnC in the grain and to select the superior progenies for formation of the next cycle and obtain lines. The base population was formed by crosses among ten parents. A total of 351 progenies were obtained, and, after two generations of selection, the 27 best progenies were evaluated in two field trials for FeC, ZnC, 100 seed weight and yield. Analyses of variance were carried out and genetic parameters were estimated. The heritability estimates ranged from 59 to 94% for the four traits. The estimates of expected gain from direct selection for each trait (3 to 21%) and simultaneous selection (1 to 4%) indicate success from selection. The eight progenies, selected based on simultaneous selection, have superior mean values, including to those of 'BRS Supremo' (10% for FeC, 8% for ZnC, 5% for 100 seed weight and 3.8% for yield), the Brazilian black bean cultivar with the highest FeC and ZnC. The recurrent selection population shows high genetic variability and potential for obtaining lines superior to the cultivars currently on the market, allying high agronomic performance and high FeC and ZnC in the grain. Furthermore, this population shows potential for generating a new recurrent selection cycle, from recombination of the eight superior progenies. 650 $aBiofortification 650 $aBlack beans 650 $aIron 650 $aPlant breeding 650 $aRecurrent selection 650 $aZinc 650 $aFeijão Preto 650 $aFerro 650 $aMelhoramento Genético Vegetal 650 $aPhaseolus Vulgaris 650 $aProdução 650 $aSeleção Recorrente 650 $aZinco 653 $a100 seed weight 700 1 $aRODRIGUES, L. L. 700 1 $aMARTINS, S. M. 700 1 $aSOUZA, T. L. P. O. de 700 1 $aMELO, L. C. 700 1 $aPEREIRA, H. S. 773 $tBragantia$gv. 80, e3121, 2021.
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