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Registro Completo |
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
28/06/2000 |
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Data da última atualização: |
25/02/2019 |
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Autoria: |
ARAÚJO, A. P.; TEIXEIRA, M. G.; ALMEIDA, D. L. de. |
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Afiliação: |
ADELSON PAULO ARAÚJO, Universidade Federal Rural do Rio de Janeiro - UFRRJ; MARCELO GRANDI TEIXEIRA, CNPAB; DEJAIR LOPES DE ALMEIDA, CNPAB. |
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Título: |
Growth and yield of common bean cultivars at two soil phosphorus levels under biological nitrogen fixation. |
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Ano de publicação: |
2000 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 35, n. 4, p. 809-817, abr. 2000. |
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Idioma: |
Inglês |
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Notas: |
Título em Português: Crescimento e produção de cultivares de feijoeiro em dois níveis de fósforo no solo sob fixação biológica de nitrogênio. |
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Conteúdo: |
The genotypic differences on growth and yield of common bean (Phaseolus vulgaris L.) in response to P supply were evaluated in a field experiment under biological N2 fixation. Eight cultivars were grown at two levels of applied P (12 and 50 kg ha-1 of P ¾ P1 and P2 respectively), in randomized block design in factorial arrangement. Vegetative biomass was sampled at three ontogenetic stages. The effects of genotype and phosphorus were significant for most traits, but not the genotype phosphorus interaction. The cultivars presented different patterns of biomass production and nutrient accumulation, particularly on root system. At P1, P accumulation persisted after the beginning of pod filling, and P translocation from roots to shoots was lower. The nodule senescence observed after flowering might have reduced N2 fixation during pod filling. The responses of vegetative growth to the higher P supply did not reflect with the same magnitude on yield, which increased only 6% at P2; hence the harvest index was lower at P2. The cultivars with highest yields also presented lower grain P concentrations. A sub-optimal supply of N could have limited the expression of the yield potential of cultivars, reducing the genotypic variability of responses to P levels. |
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Palavras-Chave: |
Bean. |
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Thesagro: |
Colheita; Feijão; Phaseolus Vulgaris. |
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Thesaurus Nal: |
Genotype; Harvest index; Harvesting; Nodulation. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/AI-SEDE/17278/1/pab98_149.pdf
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Marc: |
LEADER 02133naa a2200253 a 4500
001 1101809
005 2019-02-25
008 2000 bl uuuu u00u1 u #d
100 1 $aARAÚJO, A. P.
245 $aGrowth and yield of common bean cultivars at two soil phosphorus levels under biological nitrogen fixation.
260 $c2000
500 $aTítulo em Português: Crescimento e produção de cultivares de feijoeiro em dois níveis de fósforo no solo sob fixação biológica de nitrogênio.
520 $aThe genotypic differences on growth and yield of common bean (Phaseolus vulgaris L.) in response to P supply were evaluated in a field experiment under biological N2 fixation. Eight cultivars were grown at two levels of applied P (12 and 50 kg ha-1 of P ¾ P1 and P2 respectively), in randomized block design in factorial arrangement. Vegetative biomass was sampled at three ontogenetic stages. The effects of genotype and phosphorus were significant for most traits, but not the genotype phosphorus interaction. The cultivars presented different patterns of biomass production and nutrient accumulation, particularly on root system. At P1, P accumulation persisted after the beginning of pod filling, and P translocation from roots to shoots was lower. The nodule senescence observed after flowering might have reduced N2 fixation during pod filling. The responses of vegetative growth to the higher P supply did not reflect with the same magnitude on yield, which increased only 6% at P2; hence the harvest index was lower at P2. The cultivars with highest yields also presented lower grain P concentrations. A sub-optimal supply of N could have limited the expression of the yield potential of cultivars, reducing the genotypic variability of responses to P levels.
650 $aGenotype
650 $aHarvest index
650 $aHarvesting
650 $aNodulation
650 $aColheita
650 $aFeijão
650 $aPhaseolus Vulgaris
653 $aBean
700 1 $aTEIXEIRA, M. G.
700 1 $aALMEIDA, D. L. de
773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 35, n. 4, p. 809-817, abr. 2000.
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Embrapa Unidades Centrais (AI-SEDE) |
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| 3. |  | SOARES, S. S.; NASCIMENTO, A. F. do; ROGERIO, C. E.; VIEIRA, N. L. de A.; MARQUES, R.; BERGAMO, S. C. Análise e melhoria do processo de eventos da Embrapa Florestas. In: EVENTO DE INICIATIVAS E MELHORIAS DAS ATIVIDADES DE APOIO TÉCNICO ADMINISTRATIVO DA EMBRAPA FLORESTAS, 7., 2016, Colombo. Anais... Colombo: Embrapa Florestas, 2016. p. 25 (Embrapa Florestas. Documentos, 293). Resumo.| Tipo: Resumo em Anais de Congresso |
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