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Registro Completo |
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
22/04/1999 |
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Data da última atualização: |
22/04/1999 |
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Autoria: |
BLUM, E. |
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Título: |
Wechselwirkungen zwischen VA - Mykorrhiza und Rhizobien bei Tropischen Leguminosen. |
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Ano de publicação: |
1981 |
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Fonte/Imprenta: |
Gottingen: Georg-August-Universitat Gottingen, 1981. |
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Páginas: |
131p. |
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Idioma: |
Alemão |
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Notas: |
Tese Mestrado. |
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Conteúdo: |
Interactions between VA Mycorrhiza and Rhizobia in Tropical Legumes. The interaction between VA-mycorrhiza (Glomus macrocarpus, M1, and white reticulatre, M2) and Rhizobia in tropical and subtropical legumes was tested with potted plants in grenhouse experiments lasting for 6 weeks. Experimental plants were Stylosanthes guianensis, Centrosema pubescens, Pueraria phaseoloides, Vigna unguiculata, Trigonella foenum-graecum, Glycine max, and Trifolium alexandrinum. The experiments were carried out in two soils from Ebergotzen and Dransfeld of low phosphorus content (Tab.1), mixed with quartz sand, at the pH levels 4.5, 5.5, 6.5, and 7.5, and with the four phosphate fertilizer variants: no P (Po), monocalcium phosphate (MCP), hydroxyl-apatite (HA), and ferric phosphate (FePO4). Half of the plants of each experiment were not inoculated with Rhizobia (NR) and were fully supplied with nitrogen fertilizer, the other half were inoculated with the species-specific Rhizobium strain (R) and received only a small amount of nitrogen fertilizer as starter (Tab.3). Dry weight of shoots and roots was determined as well as the P and N uptake, degree of mycorrhizal infection and development of Rhizobia nodules. The VA-mycorrhiza, with the exception of G. max (Tab. 62 a, 63) and T. alexandrinum (Tab. 64), the shoot dry weight (Fig. 1, 4, 7, 9, 12, 15 ) and the P uptake (Fig. 2, 5, 8, 13, 16) in all plants, but not in all treatments. The strongest development (Tab. 16, 27, 32, 44, 57) and efficiency of mycorriza (Tab. 7, 19, 35, 47) usually was found with HA and FePO4 fertilization. With S. guianensis (Fig. 1), C. pubescens I (Fig. 3), and T. foenum-graecum (Fig. 15), in Ebergotzen soil, the plants with Rhizobia and mycorriza achieved similar yields as the plants with full N fertilization in spite of the reduced amount of N expended. Occasionally the R plants grew even slightly better than the NR plants. With C. pubescens II (Fig. 7) P. phaseoloides (Fig. 9), and V. unguiculata (Fig. 12) in Dransfeld soil the yields of the R plants were lower than those of the NR plants. Particularly large was this difference with C. pubescens II. As a rule, the efficiency of the mycorrhiza was stronger with the NR plants than with thye R plants (Tab. 7, 19, 35, 47). The decrease in efficiency caused by Rhizobia was insignificant with M1, but considerable with M2 in several cases. Therefore, M1 is a better partner for double infection with mycorrhiza and Rhizobia than M2. The lower mycorrhiza efficiency in the R plants probably was not caused by an insufficient N assimilation but rather by the consumption of photosynthates by the Rhizobia, with the consequence that there was less energy available for the activity of the mycorrhiza. The infection rate of mycorrhiza was nearly the same in NR and R plants (Tab. 16, 27, 32, 44, 57). Between infection rate and efficiency there was hardly any corrrelation. The N uptake by NR plants and the N assimilation by R plants (Fig. 3, 6, 11, 14, 17) followed approximately the same pattern as the shoot growth. The development of the Rhizobia nodules (Tab. 17, 28, 33, 45, 58, 61) was not directly influenced by the mycorrhiza. An indirect connexion between mycorrhiza and Rhizobia is achieved because the increased shoot growth of M plants is followed by an increased stream of photosynthates into the roots, allowing a better nodule development in M plants than in those free of mycorrhiza. NR and R plants reacted in a very similar manner to the differences in the pH of the soil. The improvement of P uptake by the VA mycorrhiza is of great importance for the growing of legumes in the tropics and subtropics. MenosInteractions between VA Mycorrhiza and Rhizobia in Tropical Legumes. The interaction between VA-mycorrhiza (Glomus macrocarpus, M1, and white reticulatre, M2) and Rhizobia in tropical and subtropical legumes was tested with potted plants in grenhouse experiments lasting for 6 weeks. Experimental plants were Stylosanthes guianensis, Centrosema pubescens, Pueraria phaseoloides, Vigna unguiculata, Trigonella foenum-graecum, Glycine max, and Trifolium alexandrinum. The experiments were carried out in two soils from Ebergotzen and Dransfeld of low phosphorus content (Tab.1), mixed with quartz sand, at the pH levels 4.5, 5.5, 6.5, and 7.5, and with the four phosphate fertilizer variants: no P (Po), monocalcium phosphate (MCP), hydroxyl-apatite (HA), and ferric phosphate (FePO4). Half of the plants of each experiment were not inoculated with Rhizobia (NR) and were fully supplied with nitrogen fertilizer, the other half were inoculated with the species-specific Rhizobium strain (R) and received only a small amount of nitrogen fertilizer as starter (Tab.3). Dry weight of shoots and roots was determined as well as the P and N uptake, degree of mycorrhizal infection and development of Rhizobia nodules. The VA-mycorrhiza, with the exception of G. max (Tab. 62 a, 63) and T. alexandrinum (Tab. 64), the shoot dry weight (Fig. 1, 4, 7, 9, 12, 15 ) and the P uptake (Fig. 2, 5, 8, 13, 16) in all plants, but not in all treatments. The strongest development (Tab. 16, 27, 32, 44,... Mostrar Tudo |
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Palavras-Chave: |
Regiao Tropical; Tropical zones. |
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Thesagro: |
Leguminosa; Micorriza Vesicular Arbuscular; Rhizobium. |
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Thesaurus Nal: |
legumes; vesicular arbuscular mycorrhizae. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 04302nam a2200217 a 4500
001 1563227
005 1999-04-22
008 1981 bl uuuu m 00u1 u #d
100 1 $aBLUM, E.
245 $aWechselwirkungen zwischen VA - Mykorrhiza und Rhizobien bei Tropischen Leguminosen.
260 $aGottingen: Georg-August-Universitat Gottingen$c1981
300 $a131p.
500 $aTese Mestrado.
520 $aInteractions between VA Mycorrhiza and Rhizobia in Tropical Legumes. The interaction between VA-mycorrhiza (Glomus macrocarpus, M1, and white reticulatre, M2) and Rhizobia in tropical and subtropical legumes was tested with potted plants in grenhouse experiments lasting for 6 weeks. Experimental plants were Stylosanthes guianensis, Centrosema pubescens, Pueraria phaseoloides, Vigna unguiculata, Trigonella foenum-graecum, Glycine max, and Trifolium alexandrinum. The experiments were carried out in two soils from Ebergotzen and Dransfeld of low phosphorus content (Tab.1), mixed with quartz sand, at the pH levels 4.5, 5.5, 6.5, and 7.5, and with the four phosphate fertilizer variants: no P (Po), monocalcium phosphate (MCP), hydroxyl-apatite (HA), and ferric phosphate (FePO4). Half of the plants of each experiment were not inoculated with Rhizobia (NR) and were fully supplied with nitrogen fertilizer, the other half were inoculated with the species-specific Rhizobium strain (R) and received only a small amount of nitrogen fertilizer as starter (Tab.3). Dry weight of shoots and roots was determined as well as the P and N uptake, degree of mycorrhizal infection and development of Rhizobia nodules. The VA-mycorrhiza, with the exception of G. max (Tab. 62 a, 63) and T. alexandrinum (Tab. 64), the shoot dry weight (Fig. 1, 4, 7, 9, 12, 15 ) and the P uptake (Fig. 2, 5, 8, 13, 16) in all plants, but not in all treatments. The strongest development (Tab. 16, 27, 32, 44, 57) and efficiency of mycorriza (Tab. 7, 19, 35, 47) usually was found with HA and FePO4 fertilization. With S. guianensis (Fig. 1), C. pubescens I (Fig. 3), and T. foenum-graecum (Fig. 15), in Ebergotzen soil, the plants with Rhizobia and mycorriza achieved similar yields as the plants with full N fertilization in spite of the reduced amount of N expended. Occasionally the R plants grew even slightly better than the NR plants. With C. pubescens II (Fig. 7) P. phaseoloides (Fig. 9), and V. unguiculata (Fig. 12) in Dransfeld soil the yields of the R plants were lower than those of the NR plants. Particularly large was this difference with C. pubescens II. As a rule, the efficiency of the mycorrhiza was stronger with the NR plants than with thye R plants (Tab. 7, 19, 35, 47). The decrease in efficiency caused by Rhizobia was insignificant with M1, but considerable with M2 in several cases. Therefore, M1 is a better partner for double infection with mycorrhiza and Rhizobia than M2. The lower mycorrhiza efficiency in the R plants probably was not caused by an insufficient N assimilation but rather by the consumption of photosynthates by the Rhizobia, with the consequence that there was less energy available for the activity of the mycorrhiza. The infection rate of mycorrhiza was nearly the same in NR and R plants (Tab. 16, 27, 32, 44, 57). Between infection rate and efficiency there was hardly any corrrelation. The N uptake by NR plants and the N assimilation by R plants (Fig. 3, 6, 11, 14, 17) followed approximately the same pattern as the shoot growth. The development of the Rhizobia nodules (Tab. 17, 28, 33, 45, 58, 61) was not directly influenced by the mycorrhiza. An indirect connexion between mycorrhiza and Rhizobia is achieved because the increased shoot growth of M plants is followed by an increased stream of photosynthates into the roots, allowing a better nodule development in M plants than in those free of mycorrhiza. NR and R plants reacted in a very similar manner to the differences in the pH of the soil. The improvement of P uptake by the VA mycorrhiza is of great importance for the growing of legumes in the tropics and subtropics.
650 $alegumes
650 $avesicular arbuscular mycorrhizae
650 $aLeguminosa
650 $aMicorriza Vesicular Arbuscular
650 $aRhizobium
653 $aRegiao Tropical
653 $aTropical zones
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Embrapa Cerrados (CPAC) |
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| Registros recuperados : 4 | |
| 2. |  | DENICH, M.; BRANDINO, Z. G.; BLUM, E. A decomposição da matéria orgânica. In: EMBRAPA. Centro de Pesquisa Agropecuária do Trópico Úmido. Pesquisa sobre utilização e conservação do solo da Amazônia Oriental: relatório final do Convênio EMBRAPA-CPATU/GTZ. Belém, PA: EMBRAPA-CPATU/GTZ, 1986. p. 163-186. (EMBRAPA-CPATU. Documentos, 40).| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 3. | | FUHRMANN, E.; JUNQUEIRA, N. T. V.; BRAGA, M. W.; BLUM, E. B.; FALEIRO, F. G.; OLIVEIRA, R. R. DE; BELLON, G.; GOMES, I. A. C.; LIMA, C. A. DE; LEÃO, A. J. P. Avaliação preliminar da resistência de híbridos interespecíficos de maracujazeiro à bacteriose. In: CONGRESSO BRASILEIRO DE FRUTICULTURA, 21., 2010, Natal. Frutas: saúde, inovação e responsabilidade: anais. Natal: SBF, 2010. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Cerrados. |
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| 4. | | FUHRMANN, E.; JUNQUEIRA, N. T. V.; BRAGA, M. W.; BLUM, E. B.; FALEIRO, F. G.; OLIVEIRA, R. R. de; BELLON, G.; GOMES, I. A. C.; LIMA, C. A. DE; LEÃO, A. J. P. Coloração da polpa e características físicas de frutos de híbridos interespecíficos envolvendo o maracujá azedo comercial. In: CONGRESSO BRASILEIRO DE FRUTICULTURA, 21., 2010, Natal. Frutas: saúde, inovação e responsabilidade: anais. Natal: SBF, 2010. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Cerrados. |
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| Registros recuperados : 4 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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