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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: |
LEADER 02539naa a2200325 a 4500
001 2124229
005 2021-01-12
008 2020 bl uuuu u00u1 u #d
022 $a1573-5036
024 7 $ahttps://doi.org/10.1007/s11104-020-04654-6$2DOI
100 1 $aPACHECO, R. S.
245 $aDifferences in contribution of biological nitrogen fixation to yield performance of common bean cultivars as assessed by the 15N natural abundance technique.$h[electronic resource]
260 $c2020
520 $aAims 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.
650 $abeans
650 $agrain yield
650 $anitrogen fixation
650 $aAbsorção
650 $aFeijão
650 $aFixação de Nitrogênio
650 $aGrão
650 $aNitrogênio Atmosférico
650 $aPhaseolus Vulgaris
650 $aRendimento
700 1 $aBODDEY, R. M.
700 1 $aALVES, B. J. R.
700 1 $aFERREIRA, E. P. de B.
700 1 $aSTRALIOTTO, R.
700 1 $aARAÚJO, A. P.
773 $tPlant and Soil$gv. 454, n. 1/2, p. 327-341, Sept. 2020.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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Biblioteca |
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Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
15/10/2001 |
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Data da última atualização: |
16/11/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SANTOS, A. F. dos; MEDEIROS, A. C. de S.; SANTANA, D. L. de Q. |
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Afiliação: |
ALVARO FIGUEREDO DOS SANTOS, CNPF; ANTONIO CARLOS DE SOUZA MEDEIROS, CNPF; DALVA LUIZ DE QUEIROZ, CNPF. |
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Título: |
Fungos associados às sementes de espécies arbóreas da Mata Atlântica. |
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Ano de publicação: |
2001 |
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Fonte/Imprenta: |
Boletim de Pesquisa Florestal, Colombo, n. 42, p. 51-59, jan./jun. 2001. |
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Idioma: |
Português |
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Conteúdo: |
Amostras de sementes de quatro especies florestais nativas da Mata Atlantica - timbauva (Enterolobium forficata)e coracao-de-negro (Poecilanthe parviflora) - foram examinadas com o objetivo de identificar e de quantificar os fungos e o desenvolvimento das plantulas. Foram utilizados os metodos de papel de filtro e do sintoma em plantulas. Dentre os 20 fungos identificados nas sementes, destacaram-se os generos Colletotrichum, Fusarium, Cladosporium, por serem fitopatogenicos. Foram constatados, tambem, os generos Penicilium, deterioracao de sementes em condicoes de armazenamento inadequado. Foram verificadas lesoes no caule de plantulas de canafistula provocadas por Colletotrichum sp. |
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Palavras-Chave: |
Doencas florestais; Forest disease; Patologia de sementes. |
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Thesaurus NAL: |
seed pathology. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/CNPF-2009-09/15644/1/santos.pdf
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Marc: |
LEADER 01276naa a2200193 a 4500
001 1289829
005 2023-11-16
008 2001 bl uuuu u00u1 u #d
100 1 $aSANTOS, A. F. dos
245 $aFungos associados às sementes de espécies arbóreas da Mata Atlântica.
260 $c2001
520 $aAmostras de sementes de quatro especies florestais nativas da Mata Atlantica - timbauva (Enterolobium forficata)e coracao-de-negro (Poecilanthe parviflora) - foram examinadas com o objetivo de identificar e de quantificar os fungos e o desenvolvimento das plantulas. Foram utilizados os metodos de papel de filtro e do sintoma em plantulas. Dentre os 20 fungos identificados nas sementes, destacaram-se os generos Colletotrichum, Fusarium, Cladosporium, por serem fitopatogenicos. Foram constatados, tambem, os generos Penicilium, deterioracao de sementes em condicoes de armazenamento inadequado. Foram verificadas lesoes no caule de plantulas de canafistula provocadas por Colletotrichum sp.
650 $aseed pathology
653 $aDoencas florestais
653 $aForest disease
653 $aPatologia de sementes
700 1 $aMEDEIROS, A. C. de S.
700 1 $aSANTANA, D. L. de Q.
773 $tBoletim de Pesquisa Florestal, Colombo$gn. 42, p. 51-59, jan./jun. 2001.
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Registro original: |
Embrapa Florestas (CNPF) |
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