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Registro Completo |
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Biblioteca(s): |
Embrapa Agrobiologia. |
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Data corrente: |
25/01/1996 |
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Data da última atualização: |
25/01/1996 |
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Autoria: |
ALVAREZ, M. A. de B. |
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Título: |
Studies on the effect of N and P fertilization and rhizosphere bacteria inoculation on the growth of oats (Avena sativa L.). |
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Ano de publicação: |
1989 |
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Fonte/Imprenta: |
Halifax: Dalhousie University, set, 1989 |
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Páginas: |
286p. |
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Série: |
Tese de Mestrado. |
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Idioma: |
Inglês |
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Notas: |
Tese de Mestrado. |
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Conteúdo: |
Oats were grown in two fields on an organic farm in the Annapolis County, Nova Scotia. In one field (A5) the effects of N, P and N plus P on the growth and yield of oats and their rhizosphere microrganisms were studied. In the second field (A1) the effect of N fertilization on final biomass and grain yield and on the rhizosphere microrganisms was studied. There was no fertilizer effect in the grain yield. However, significant effects on growth parameters were observed. In addition, there was a large difference in the yield of oats in these two fields. Oats grown in field A5 had high yields and oats grown in field A1 had low yields. The numbers of rhizosphere bacteria were also several orders of magnitude larger in the rhizosphere of oats grown in field A5.Whenthe most abundant bacterial isolates from these two groups of plants were morphologically compared they were shown to be distinct. I was reasoned that the rhizosphere of the high-yielding oats might be enriched for bacteria which benefit plant growth while the rhizosphere of low-yielding oats might be enriched for bacteria which inhibit plant growth. Inoculation trials with these two groups of bacteria were carried out in the laboratory under axenic conditions and in the field. The inoculation of a mixture of organisms from high-yielding oats and of mixture of organisms from low-yielding oats did not cause any significant effect on the growth and yield of oats. Similarly, inoculation of 22 organisms from each of these two groups of bacteria on oats grown ... MenosOats were grown in two fields on an organic farm in the Annapolis County, Nova Scotia. In one field (A5) the effects of N, P and N plus P on the growth and yield of oats and their rhizosphere microrganisms were studied. In the second field (A1) the effect of N fertilization on final biomass and grain yield and on the rhizosphere microrganisms was studied. There was no fertilizer effect in the grain yield. However, significant effects on growth parameters were observed. In addition, there was a large difference in the yield of oats in these two fields. Oats grown in field A5 had high yields and oats grown in field A1 had low yields. The numbers of rhizosphere bacteria were also several orders of magnitude larger in the rhizosphere of oats grown in field A5.Whenthe most abundant bacterial isolates from these two groups of plants were morphologically compared they were shown to be distinct. I was reasoned that the rhizosphere of the high-yielding oats might be enriched for bacteria which benefit plant growth while the rhizosphere of low-yielding oats might be enriched for bacteria which inhibit plant growth. Inoculation trials with these two groups of bacteria were carried out in the laboratory under axenic conditions and in the field. The inoculation of a mixture of organisms from high-yielding oats and of mixture of organisms from low-yielding oats did not cause any significant effect on the growth and yield of oats. Similarly, inoculation of 22 organisms from each of these t... Mostrar Tudo |
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Palavras-Chave: |
Actinomicetos; Actymocetes; BNF; FBN; Fertilizacao; Fertilization; Fixacao biologica de nitrogenio; Growth; Microrganismos; N; Nitrogen fixing bacteria; P; Roots anatomy. |
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Thesagro: |
Amônia; Anatomia; Aveia; Avena Sativa; Crescimento; Fósforo; Nitrato; Nitrogênio; Planta; Produção; Raiz; Rizosfera; Solo. |
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Thesaurus Nal: |
microorganisms; nitrogen; oats; phosphorus; plant products; rhizosphere. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02854nam a2200529 a 4500
001 1622123
005 1996-01-25
008 1989 bl uuuu m 00u1 u #d
100 1 $aALVAREZ, M. A. de B.
245 $aStudies on the effect of N and P fertilization and rhizosphere bacteria inoculation on the growth of oats (Avena sativa L.).
260 $aHalifax: Dalhousie University, set$c1989
300 $a286p.
490 $aTese de Mestrado.
500 $aTese de Mestrado.
520 $aOats were grown in two fields on an organic farm in the Annapolis County, Nova Scotia. In one field (A5) the effects of N, P and N plus P on the growth and yield of oats and their rhizosphere microrganisms were studied. In the second field (A1) the effect of N fertilization on final biomass and grain yield and on the rhizosphere microrganisms was studied. There was no fertilizer effect in the grain yield. However, significant effects on growth parameters were observed. In addition, there was a large difference in the yield of oats in these two fields. Oats grown in field A5 had high yields and oats grown in field A1 had low yields. The numbers of rhizosphere bacteria were also several orders of magnitude larger in the rhizosphere of oats grown in field A5.Whenthe most abundant bacterial isolates from these two groups of plants were morphologically compared they were shown to be distinct. I was reasoned that the rhizosphere of the high-yielding oats might be enriched for bacteria which benefit plant growth while the rhizosphere of low-yielding oats might be enriched for bacteria which inhibit plant growth. Inoculation trials with these two groups of bacteria were carried out in the laboratory under axenic conditions and in the field. The inoculation of a mixture of organisms from high-yielding oats and of mixture of organisms from low-yielding oats did not cause any significant effect on the growth and yield of oats. Similarly, inoculation of 22 organisms from each of these two groups of bacteria on oats grown ...
650 $amicroorganisms
650 $anitrogen
650 $aoats
650 $aphosphorus
650 $aplant products
650 $arhizosphere
650 $aAmônia
650 $aAnatomia
650 $aAveia
650 $aAvena Sativa
650 $aCrescimento
650 $aFósforo
650 $aNitrato
650 $aNitrogênio
650 $aPlanta
650 $aProdução
650 $aRaiz
650 $aRizosfera
650 $aSolo
653 $aActinomicetos
653 $aActymocetes
653 $aBNF
653 $aFBN
653 $aFertilizacao
653 $aFertilization
653 $aFixacao biologica de nitrogenio
653 $aGrowth
653 $aMicrorganismos
653 $aN
653 $aNitrogen fixing bacteria
653 $aP
653 $aRoots anatomy
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Registro original: |
Embrapa Agrobiologia (CNPAB) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Soja. Para informações adicionais entre em contato com valeria.cardoso@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
07/05/2012 |
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Data da última atualização: |
06/08/2012 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
LOUREIRO, M. de F.; HUNGRIA, M.; SAMPAIO, M. J. A. |
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Afiliação: |
CNPBS; MARIANGELA HUNGRIA DA CUNHA, CNPSO. |
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Título: |
Photosynthetic characteristics of strains of Rhizobia isolated from stem nodules of Aeschynomene fluminensis grown in the pantanal region of Brazil. |
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Ano de publicação: |
1992 |
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Fonte/Imprenta: |
In: INTERNATIONAL CONGRESS ON NITROGEN FIXATION, 9., Cancun, [1992]. Program and abstracts... [S.l.: s.n., 1992?]. Abst. 707. |
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Idioma: |
Português |
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Palavras-Chave: |
Rhyzobium sp. |
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Thesagro: |
Fixação de nitrogênio; Nodulação. |
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Thesaurus NAL: |
Nitrogen fixation; Nodulation. |
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Categoria do assunto: |
S Ciências Biológicas |
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Marc: |
LEADER 00706naa a2200193 a 4500
001 1923847
005 2012-08-06
008 1992 bl uuuu u00u1 u #d
100 1 $aLOUREIRO, M. de F.
245 $aPhotosynthetic characteristics of strains of Rhizobia isolated from stem nodules of Aeschynomene fluminensis grown in the pantanal region of Brazil.
260 $c1992
650 $aNitrogen fixation
650 $aNodulation
650 $aFixação de nitrogênio
650 $aNodulação
653 $aRhyzobium sp
700 1 $aHUNGRIA, M.
700 1 $aSAMPAIO, M. J. A.
773 $tIn: INTERNATIONAL CONGRESS ON NITROGEN FIXATION, 9., Cancun, [1992]. Program and abstracts... [S.l.: s.n., 1992?]. Abst. 707.
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