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 | Acesso ao texto completo restrito à biblioteca da Embrapa Solos. Para informações adicionais entre em contato com cnps.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Agrobiologia; Embrapa Arroz e Feijão; Embrapa Solos. |
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Data corrente: |
07/08/2020 |
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Data da última atualização: |
12/01/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
PACHECO, R. S.; BODDEY, R. M.; ALVES, B. J. R.; FERREIRA, E. P. de B.; STRALIOTTO, R.; ARAÚJO, A. P. |
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Afiliação: |
RAFAEL SANCHES PACHECO, UFRRJ; ROBERT MICHAEL BODDEY, CNPAB; BRUNO JOSE RODRIGUES ALVES, CNPAB; ENDERSON PETRONIO DE BRITO FERREIRA, CNPAF; ROSANGELA STRALIOTTO, CNPS; ADELSON PAULO ARAÚJO, UFRRJ. |
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Título: |
Differences in contribution of biological nitrogen fixation to yield performance of common bean cultivars as assessed by the 15N natural abundance technique. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Plant and Soil, v. 454, n. 1/2, p. 327-341, Sept. 2020. |
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ISSN: |
1573-5036 |
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DOI: |
https://doi.org/10.1007/s11104-020-04654-6 |
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Idioma: |
Inglês |
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Conteúdo: |
Aims Identification of variability in biological N2 fixation (BNF) contribution among common bean (Phaseolus vulgaris L.) cultivars under field conditions requires a reliable methodology. This study aimed to assess different common bean cultivars for plant growth and grain yield and to quantify the BNF contribution to the crop using the 15N natural abundance technique. Methods Two field experiments were conducted in an Oxisol in Brazil over two consecutive years, with eight common bean cultivars inoculated with rhizobium or fertilized with mineral N. Plants were analysed at mid-pod filling stage (two weeks after full-flowering) and at grain maturity. BNF was estimated by the 15N natural abundance technique. Results Average grain yields were 1614 or 2942 kg ha-1 in Experiment I, and 3284 or 3919 kg ha-1 in Experiment II, with rhizobium inoculation or mineral N, respectively. The average contributions of N derived from atmosphere were 14 and 26%, and amounts of N2-fixed were 7 and 22 kg N ha-1, in bean plants at mid-pod filling, respectively, in Experiment I and Experiment II. Conclusions The contributions of BNF increase when common bean crop reached its optimum yield potential even though soil N was the most important source for the plants. There is good relationship between delta15N values of grains and shoots, provided cultivars are of similar growth habit. The 15N natural abundance technique allowed identifying cultivars with relatively high BNF capability for commercial crop and breeding purposes. MenosAims Identification of variability in biological N2 fixation (BNF) contribution among common bean (Phaseolus vulgaris L.) cultivars under field conditions requires a reliable methodology. This study aimed to assess different common bean cultivars for plant growth and grain yield and to quantify the BNF contribution to the crop using the 15N natural abundance technique. Methods Two field experiments were conducted in an Oxisol in Brazil over two consecutive years, with eight common bean cultivars inoculated with rhizobium or fertilized with mineral N. Plants were analysed at mid-pod filling stage (two weeks after full-flowering) and at grain maturity. BNF was estimated by the 15N natural abundance technique. Results Average grain yields were 1614 or 2942 kg ha-1 in Experiment I, and 3284 or 3919 kg ha-1 in Experiment II, with rhizobium inoculation or mineral N, respectively. The average contributions of N derived from atmosphere were 14 and 26%, and amounts of N2-fixed were 7 and 22 kg N ha-1, in bean plants at mid-pod filling, respectively, in Experiment I and Experiment II. Conclusions The contributions of BNF increase when common bean crop reached its optimum yield potential even though soil N was the most important source for the plants. There is good relationship between delta15N values of grains and shoots, provided cultivars are of similar growth habit. The 15N natural abundance technique allowed identifying cultivars with relatively high BNF capability for commercial ... Mostrar Tudo |
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Thesagro: |
Absorção; Feijão; Fixação de Nitrogênio; Grão; Nitrogênio Atmosférico; Phaseolus Vulgaris; Rendimento. |
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Thesaurus Nal: |
beans; grain yield; nitrogen fixation. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra
S Ciências Biológicas |
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Marc: |
null
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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| Registros recuperados : 4 | |
| 1. |  | MENEZES, L. M.; BRAUNER, C. C.; PIMENTEL, M. A.; MORAES, J. C. F.; AMARAL, F. A. Desempenho reprodutivo de novilhas de corte expostas a diferentes métodos de bioestimulação. Archivos de Zootecnia, Cordoba, v. 60, n. 232, p. 1347-1350, Dec. 2011. Nota breve.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 2 |
| Biblioteca(s): Embrapa Pecuária Sul. |
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| 2. | | MARTINS, C. E.; AMARAL, F. A. L. do; FONTES, L. A. N.; MONNERAT, P. H.; CONDÉ, A. R. Eficiência da utilização de potássio, cálcio e magnésio em 16 híbridos de sorgo. In: REUNIÃO BRASILEIRA DE MILHO E SORGO, 12., 1978, Goiânia. Anais... Brasília, DF: EMBRAPA-DID, 1979. p. 135.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Semiárido. |
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| 4. | | MENEZES, L. de M.; BRAUNER, C. C.; PIMENTEL, M. A.; AMARAL, F. A. do; MACHADO, J. P. M.; MORAES, J. C. F. Métodos de bioestimulação sexual e desempenho reprodutivo de novilhas de corte. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 46., 2009, Maringá. Anais... Maringá: Universidade Estadual de Maringá: SBZ, 2009. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Pecuária Sul. |
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| Registros recuperados : 4 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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