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Registro Completo |
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Biblioteca(s): |
Embrapa Agrobiologia. |
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Data corrente: |
13/12/2001 |
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Data da última atualização: |
31/05/2007 |
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Autoria: |
MACHADO, A. T.; FERNANDES, M. S. |
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Título: |
Participatory maize breeding for low nitrogen tolerance. |
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Ano de publicação: |
2001 |
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Fonte/Imprenta: |
Euphytica, Dordrecht, v. 122, n. 3, p. 567-573, 2001. |
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Idioma: |
Inglês |
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Conteúdo: |
The local maize variety Sol da Manhã has a broad genetic background. It was identified in 1985 in a participatory evaluation trial as being suitable for cultivation under low soil fertility conditions in Sol da Manhã, situated in Seropédica, State of Rio de Janeiro, Brazil. The variety was then improved for 6 selection cycles by the formal breeding sector at the experimental station of Embrapa Agrobiologia. There were three cycles of mass selection, one selection cycle between and within half -sib families, one selection cycle within full-sib families, and one selection cycle between and within S1 families. Thereafter, the variety was improved in collaboration with the informal sector, viz. a group of farmers of the agricultural community of Sol da Manhã for 6 cycles of mass selection. The variety was evaluated in 1994 in field trials for grain yield and nitrogen use efficiency. Sol da Manhã can be characterised as efficient in nitrogen use, under both favourable and unfavourable growing conditions.
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Palavras-Chave: |
Maize. |
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Thesagro: |
Melhoramento; Milho. |
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Thesaurus Nal: |
breeding. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01484naa a2200181 a 4500
001 1598770
005 2007-05-31
008 2001 bl --- 0-- u #d
100 1 $aMACHADO, A. T.
245 $aParticipatory maize breeding for low nitrogen tolerance.
260 $c2001
520 $aThe local maize variety Sol da Manhã has a broad genetic background. It was identified in 1985 in a participatory evaluation trial as being suitable for cultivation under low soil fertility conditions in Sol da Manhã, situated in Seropédica, State of Rio de Janeiro, Brazil. The variety was then improved for 6 selection cycles by the formal breeding sector at the experimental station of Embrapa Agrobiologia. There were three cycles of mass selection, one selection cycle between and within half -sib families, one selection cycle within full-sib families, and one selection cycle between and within S1 families. Thereafter, the variety was improved in collaboration with the informal sector, viz. a group of farmers of the agricultural community of Sol da Manhã for 6 cycles of mass selection. The variety was evaluated in 1994 in field trials for grain yield and nitrogen use efficiency. Sol da Manhã can be characterised as efficient in nitrogen use, under both favourable and unfavourable growing conditions.
650 $abreeding
650 $aMelhoramento
650 $aMilho
653 $aMaize
700 1 $aFERNANDES, M. S.
773 $tEuphytica, Dordrecht$gv. 122, n. 3, p. 567-573, 2001.
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Registro original: |
Embrapa Agrobiologia (CNPAB) |
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Registro Completo
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
04/09/2015 |
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Data da última atualização: |
05/12/2023 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
TONUCCI, R. G.; PRIMO, A. A.; MELO, M. D.; VIEIRA, L. V.; FERNANDES, J. K. S.; SOUZA, H. A. de. |
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Afiliação: |
RAFAEL GONCALVES TONUCCI, CNPC; Anacláudia Alves Primo, Pós-graduação - Universidade Estadual Vale do Acaraú (UVA) - Sobral, CE; Maria Diana Melo; Lucas Vasconcelos Vieira; José Kioma Sousa Fernandes; HENRIQUE ANTUNES DE SOUZA, CNPC. |
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Título: |
Soil chemical attributes for different land-use systems in semi arid region. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
In: WORLD CONGRESS ON INTEGRATED CROP-LIVESTOCK-FOREST SYSTEMS; INTERNATIONAL SYMPOSIUM ON INTEGRATED CROP-LIVESTOCK SYSTEMS, 3., 2015, Brasília, DF. Towards sustainable intensification: proceedings. Brasília, DF: Embrapa, 2015. |
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Idioma: |
Inglês |
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Conteúdo: |
Introduction the evaluation of soil fertility in already placed agroforestry systems allows inferences of greater managements practices and nutrient cycling. In the semi arid region the use of integrated systems provides optimization of land and the efficient use of resources, thus becomes preponderant know soil chemical properties to assist in soil management. It aimed to evaluate soil chemical properties of agroforestry systems already placed. |
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Palavras-Chave: |
Agroforestry systems; Agrosilvopastoral systems; Brasil; Chemicophysical properties; Semiárido; Sistema agrossilvopastoril; Sistemas agroflorestais. |
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Thesagro: |
Propriedade físico-química; Solo. |
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Thesaurus NAL: |
Brazil; Physicochemical properties; Semiarid soils; Soil. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/129059/1/cnpc-2015-Soil.pdf
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Marc: |
LEADER 01575nam a2200325 a 4500
001 2023302
005 2023-12-05
008 2015 bl uuuu u00u1 u #d
100 1 $aTONUCCI, R. G.
245 $aSoil chemical attributes for different land-use systems in semi arid region.$h[electronic resource]
260 $aIn: WORLD CONGRESS ON INTEGRATED CROP-LIVESTOCK-FOREST SYSTEMS; INTERNATIONAL SYMPOSIUM ON INTEGRATED CROP-LIVESTOCK SYSTEMS, 3., 2015, Brasília, DF. Towards sustainable intensification: proceedings. Brasília, DF: Embrapa$c2015
520 $aIntroduction the evaluation of soil fertility in already placed agroforestry systems allows inferences of greater managements practices and nutrient cycling. In the semi arid region the use of integrated systems provides optimization of land and the efficient use of resources, thus becomes preponderant know soil chemical properties to assist in soil management. It aimed to evaluate soil chemical properties of agroforestry systems already placed.
650 $aBrazil
650 $aPhysicochemical properties
650 $aSemiarid soils
650 $aSoil
650 $aPropriedade físico-química
650 $aSolo
653 $aAgroforestry systems
653 $aAgrosilvopastoral systems
653 $aBrasil
653 $aChemicophysical properties
653 $aSemiárido
653 $aSistema agrossilvopastoril
653 $aSistemas agroflorestais
700 1 $aPRIMO, A. A.
700 1 $aMELO, M. D.
700 1 $aVIEIRA, L. V.
700 1 $aFERNANDES, J. K. S.
700 1 $aSOUZA, H. A. de
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Embrapa Caprinos e Ovinos (CNPC) |
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