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Registro Completo |
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Biblioteca(s): |
Embrapa Agrobiologia; Embrapa Pantanal. |
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Data corrente: |
15/02/1995 |
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Data da última atualização: |
27/06/1995 |
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Autoria: |
DAY, L. D.; SYLVIA, D. M.; COLLINS, M. E. |
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Título: |
Interactions among vesicular-arbuscular mycorrhizae, soil, and landscape position. |
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Ano de publicação: |
1987 |
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Fonte/Imprenta: |
Soil Sci. Soc. Am. J., v.51, p.635-639, 1987. |
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Idioma: |
Inglês
Português |
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Conteúdo: |
The interrelationships among mycorrhizae, soil and landscape position were investigated for a bahiagrass pasture (Paspalum notatum Flugge) in northern Florida. A significant effect of landscape position was found for spore number, root colonization, root lenght, the ratio of Acaulospora and Glomus to Gigaspora spores, and number of spores per centimeter of colonized root. Root colonization and propagule numbers were least in the most crosive positions (shulder and backstope) of the landscape. This impklied that the population density of vesicular-arbuscular myccorrhizae (VAM) fungi may be reduced by soil erosion even if erosion in not severe enough to affect plant cover. The pattern of soil across the landscape influenced the distribution of general of VAM fungi: soils in footstope positions had sandier surface textures as a consequence of erosional/depositional processes and favored higher populations of Gigaspora than of Acaulospora and Glomus. |
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Palavras-Chave: |
Acaulaspora; Deposition; Erosion; MICORRIZA/VA; Root colonization; Slope. |
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Thesagro: |
Bioquímica; Ecologia; Micorriza; Microbiologia; Paspalum Notatum; Solo. |
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Thesaurus Nal: |
Acaulospora; Gigaspora; Glomus; soil; sporulation. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01822naa a2200349 a 4500
001 1611080
005 1995-06-27
008 1987 bl --- 0-- u #d
100 1 $aDAY, L. D.
245 $aInteractions among vesicular-arbuscular mycorrhizae, soil, and landscape position.
260 $c1987
520 $aThe interrelationships among mycorrhizae, soil and landscape position were investigated for a bahiagrass pasture (Paspalum notatum Flugge) in northern Florida. A significant effect of landscape position was found for spore number, root colonization, root lenght, the ratio of Acaulospora and Glomus to Gigaspora spores, and number of spores per centimeter of colonized root. Root colonization and propagule numbers were least in the most crosive positions (shulder and backstope) of the landscape. This impklied that the population density of vesicular-arbuscular myccorrhizae (VAM) fungi may be reduced by soil erosion even if erosion in not severe enough to affect plant cover. The pattern of soil across the landscape influenced the distribution of general of VAM fungi: soils in footstope positions had sandier surface textures as a consequence of erosional/depositional processes and favored higher populations of Gigaspora than of Acaulospora and Glomus.
650 $aAcaulospora
650 $aGigaspora
650 $aGlomus
650 $asoil
650 $asporulation
650 $aBioquímica
650 $aEcologia
650 $aMicorriza
650 $aMicrobiologia
650 $aPaspalum Notatum
650 $aSolo
653 $aAcaulaspora
653 $aDeposition
653 $aErosion
653 $aMICORRIZA/VA
653 $aRoot colonization
653 $aSlope
700 1 $aSYLVIA, D. M.
700 1 $aCOLLINS, M. E.
773 $tSoil Sci. Soc. Am. J.$gv.51, p.635-639, 1987.
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Registro original: |
Embrapa Agrobiologia (CNPAB) |
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