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Registro Completo |
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Biblioteca(s): |
Embrapa Agrobiologia; Embrapa Arroz e Feijão. |
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Data corrente: |
07/11/1994 |
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Data da última atualização: |
27/06/1995 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MULLER, S.; PEREIRA, P. A. A.; MARTIN, P. |
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Título: |
Effect of different levels of mineral nitrogen on nodulation and N2 fixation of two cultivars of common bean (Phaseolus vulgaris L.). |
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Ano de publicação: |
1993 |
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Fonte/Imprenta: |
Plant Soil, v. 152, n. 1, p. 139-143, 1993. |
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Idioma: |
Inglês |
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Conteúdo: |
An experiment was conducted under greenhouse conditions to evaluate the effect of mineral nitrogen on N 2 fixation of two cultivars of Phaseolus vulgaris L., Puebla 152 and Negro Argel. Nitrogen application was 0, 2.5, 12.5 and 25 mg N kg -1 of a vermiculite-sand-mixture at planting time. Shoot and root growth were elevated by nitrogen application at all growth stages. During vegetative growth (V 5) nodule dry weight and nitrogenase activity (acetylene reducing activity) per plant were reduced by nitrogen supply in both cultivars, but less in Negro Argel than in Puebla 152. At later stages nodulation in nitrogen-treated Puebla 152 did not differ from that in non-treated plants, whereas increased nodule number was found in Negro Argel at high nitrogen levels. The influence of mineral N on the total amount of nitrogen fixed in the two bean cultivars was only slightly different. |
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Palavras-Chave: |
FBN; Genótipo da planata. |
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Thesagro: |
Amônia; Feijão; Nitrato; Nitrogênio; Nodulação; Phaseolus Vulgaris. |
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Thesaurus Nal: |
Ara; Beans; Nitrogen fixation; Nodulation. |
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Categoria do assunto: |
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F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 01692naa a2200289 a 4500
001 1618362
005 1995-06-27
008 1993 bl uuuu u00u1 u #d
100 1 $aMULLER, S.
245 $aEffect of different levels of mineral nitrogen on nodulation and N2 fixation of two cultivars of common bean (Phaseolus vulgaris L.).$h[electronic resource]
260 $c1993
520 $aAn experiment was conducted under greenhouse conditions to evaluate the effect of mineral nitrogen on N 2 fixation of two cultivars of Phaseolus vulgaris L., Puebla 152 and Negro Argel. Nitrogen application was 0, 2.5, 12.5 and 25 mg N kg -1 of a vermiculite-sand-mixture at planting time. Shoot and root growth were elevated by nitrogen application at all growth stages. During vegetative growth (V 5) nodule dry weight and nitrogenase activity (acetylene reducing activity) per plant were reduced by nitrogen supply in both cultivars, but less in Negro Argel than in Puebla 152. At later stages nodulation in nitrogen-treated Puebla 152 did not differ from that in non-treated plants, whereas increased nodule number was found in Negro Argel at high nitrogen levels. The influence of mineral N on the total amount of nitrogen fixed in the two bean cultivars was only slightly different.
650 $aAra
650 $aBeans
650 $aNitrogen fixation
650 $aNodulation
650 $aAmônia
650 $aFeijão
650 $aNitrato
650 $aNitrogênio
650 $aNodulação
650 $aPhaseolus Vulgaris
653 $aFBN
653 $aGenótipo da planata
700 1 $aPEREIRA, P. A. A.
700 1 $aMARTIN, P.
773 $tPlant Soil$gv. 152, n. 1, p. 139-143, 1993.
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Registro original: |
Embrapa Agrobiologia (CNPAB) |
