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Registro Completo |
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Biblioteca(s): |
Embrapa Agrobiologia; Embrapa Arroz e Feijão; Embrapa Clima Temperado. |
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Data corrente: |
08/09/1993 |
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Data da última atualização: |
18/04/2024 |
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Autoria: |
PEREIRA, P. A. A. |
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Afiliação: |
PEDRO ANTONIO ARRAES PEREIRA, CNPAF. |
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Título: |
Improvement of N2 fixation in common bean (Phaseolus vulgaris L.) at different levels of available phosphorus. |
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Ano de publicação: |
1987 |
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Fonte/Imprenta: |
Madison: University of Wisconsin, 1987. |
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Páginas: |
151 p. |
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Idioma: |
Inglês |
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Notas: |
Tese Doutorado. |
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Conteúdo: |
Phosphorus is one among several factors which affects N2 fixation, and besides N, a principal yield-limiting nutrient in many regions of the world. Since the host plant is an essential partner in symbiosis, knowledge of host genotypic variability for N2 fixation at different levels of P availability will be useful when breeding cultivars for enhanced N2 fixation. The objective of this study was to investigate the possibility of obtaining common bean (Phaseolus vulgaris L.) lines which can fix large amounts of N2 under different levels of available phosphorus. Experiments were conducted in a growth room using a sand-alumina system which was reproducible and well suited for studying N2 fixation under different levels of available P and in the field where a low-Nsoil was chosen. In the growth room studies, P availability strongly affected plant growth and traits related to N2 fixation. However, no beneficial response was detected on the growth of the 14 common bean lines with addition of mycorrhiza. Competition for P between nodules and pods was observed at latter stages of growth, although other factors also contributed to a decline in nitrogenase activity and reduced nodule dry weight during the reproductive stage. Nodules were the plant part richest in phosphorus, and nodule dry weight was affected more than nodule number by limiting P supply, perhaps indicating that growth of the nodules was the primary factor limiting N2 fixation at low P levels. Generally no significant interaction was detected for P levels..... MenosPhosphorus is one among several factors which affects N2 fixation, and besides N, a principal yield-limiting nutrient in many regions of the world. Since the host plant is an essential partner in symbiosis, knowledge of host genotypic variability for N2 fixation at different levels of P availability will be useful when breeding cultivars for enhanced N2 fixation. The objective of this study was to investigate the possibility of obtaining common bean (Phaseolus vulgaris L.) lines which can fix large amounts of N2 under different levels of available phosphorus. Experiments were conducted in a growth room using a sand-alumina system which was reproducible and well suited for studying N2 fixation under different levels of available P and in the field where a low-Nsoil was chosen. In the growth room studies, P availability strongly affected plant growth and traits related to N2 fixation. However, no beneficial response was detected on the growth of the 14 common bean lines with addition of mycorrhiza. Competition for P between nodules and pods was observed at latter stages of growth, although other factors also contributed to a decline in nitrogenase activity and reduced nodule dry weight during the reproductive stage. Nodules were the plant part richest in phosphorus, and nodule dry weight was affected more than nodule number by limiting P supply, perhaps indicating that growth of the nodules was the primary factor limiting N2 fixation at low P levels. Generally no significant i... Mostrar Tudo |
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Palavras-Chave: |
FBN; Fixação; Fixacao biologica de nitrogenio; N; NBF; Nitrogen fixing bacteria; Nível; P. |
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Thesagro: |
Adubação; Feijão; Fertilizante; Fósforo; Micorriza; Nitrogênio; Nutriente; Phaseolus Vulgaris. |
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Thesaurus Nal: |
kidney beans; nitrogen; phosphorus. |
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Categoria do assunto: |
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F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02465nam a2200361 a 4500
001 1191379
005 2024-04-18
008 1987 bl uuuu m 00u1 u #d
100 1 $aPEREIRA, P. A. A.
245 $aImprovement of N2 fixation in common bean (Phaseolus vulgaris L.) at different levels of available phosphorus.
260 $aMadison: University of Wisconsin$c1987
300 $a151 p.
500 $aTese Doutorado.
520 $aPhosphorus is one among several factors which affects N2 fixation, and besides N, a principal yield-limiting nutrient in many regions of the world. Since the host plant is an essential partner in symbiosis, knowledge of host genotypic variability for N2 fixation at different levels of P availability will be useful when breeding cultivars for enhanced N2 fixation. The objective of this study was to investigate the possibility of obtaining common bean (Phaseolus vulgaris L.) lines which can fix large amounts of N2 under different levels of available phosphorus. Experiments were conducted in a growth room using a sand-alumina system which was reproducible and well suited for studying N2 fixation under different levels of available P and in the field where a low-Nsoil was chosen. In the growth room studies, P availability strongly affected plant growth and traits related to N2 fixation. However, no beneficial response was detected on the growth of the 14 common bean lines with addition of mycorrhiza. Competition for P between nodules and pods was observed at latter stages of growth, although other factors also contributed to a decline in nitrogenase activity and reduced nodule dry weight during the reproductive stage. Nodules were the plant part richest in phosphorus, and nodule dry weight was affected more than nodule number by limiting P supply, perhaps indicating that growth of the nodules was the primary factor limiting N2 fixation at low P levels. Generally no significant interaction was detected for P levels.....
650 $akidney beans
650 $anitrogen
650 $aphosphorus
650 $aAdubação
650 $aFeijão
650 $aFertilizante
650 $aFósforo
650 $aMicorriza
650 $aNitrogênio
650 $aNutriente
650 $aPhaseolus Vulgaris
653 $aFBN
653 $aFixação
653 $aFixacao biologica de nitrogenio
653 $aN
653 $aNBF
653 $aNitrogen fixing bacteria
653 $aNível
653 $aP
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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| Registros recuperados : 9 | |
| 3. |  | ALBERGONI, L.; FARIA, B. da S.; GARRASTAZU, M. C.; ROSOT, M. A. D.; LACERDA, A. E. B. de; ROSOT, N. C.; OLIVEIRA, Y. M. M. de. Mapeamento do uso da terra no entorno de uma reserva florestal avaliando a classificação orientada ao objeto com imgaem ALOS AVNIR-2. In: SEMINÁRIO DE ATUALIZAÇÃO EM SENSORIAMENTO REMOTO E SISTEMAS DE INFORMAÇÕES GEOGRÁFICAS APLICADOS À ENGENHARIA FLORESTAL, 9., 2010, Curitiba. [Anais]. [Curitiba]: FUPEF, 2010. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Florestas. |
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| 5. | | LACERDA, A. E. B. de; NIMMO, E. R.; FARIA, B. S.; KELLERMANN, B.; ALBERGONI, L.; GARRASTAZU, M. C.; OLIVEIRA, Y. M. M. de; MATTOS, P. P. de; ROSOT, M. A. D. A identificação botânica no manejo florestal na Amazônia. Colombo: Embrapa Florestas, 2010. 1 CD-ROM. (Embrapa Florestas. Documentos, 204).| Biblioteca(s): Embrapa Florestas. |
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| 6. | | ALBERGONI, L.; GARRASTAZU, M. C.; ROSOT, N. C.; ROSOT, M. A. D.; OLIVEIRA, Y. M. M. de; LACERDA, A. E. B. de. Análise da ocupação do entorno da Reserva Florestal Embrapa/Epagri. In: SIMPÓSIO BRASIL-ALEMANHA, 4., 2009, Curitiba. Desenvolvimento sustentável: resumos. Curitiba: Centro de Cooperação Internacional Brasil-Alemanha: UFPR, 2009. 1 CD-ROM.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Florestas. |
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| 8. | | ALBERGONI, L.; SOARES, A.; ROSOT, M. A.; OLIVEIRA, Y. M. M. de; MATTOS, P. P. de; GARRASTAZU, M. C. Avaliação do cálculo de declividade a partir de dados de altitude barométrica do GPS. In: EVENTO DE INICIAÇÃO CIENTÍFICA DA EMBRAPA FLORESTAS, 7., 2008, Colombo. Anais. Colombo: Embrapa Florestas, 2008. 1 CD-ROM. Resumo.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Florestas. |
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| Registros recuperados : 9 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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