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Provedor de dados:  Repositório Alice
País:  Brazil
Título:  Mycorrhizal dependency of mangaba tree under increasing phosphorus levels.
Autores:  CARDOSO FILHO, J.A.
LEMOS, E.E.P. de
SANTOS, T.M.C. dos
CAETANO, L.C.
NOGUEIRA, M.A.
Data:  2008-11-13
Ano:  2008
Palavras-chave:  Gigaspora margarita
Glomus etunicatum
Hancornia speciosa
Biofertilizers
Native mycorrhizal fungi
Phosphorus nutrition
Biofertilizantes
Fungos micorrízicos nativos
Nutrição fosfatada
Resumo:  The objective of this study was to evaluate the mycorrhizal dependency of mangaba tree (Hancornia speciosa) plantlets, under increasing levels of phosphorus fertilization. The experimental design was completely randomized in a 4´5 factorial arrangement with three mycorrhizal fungi inocula ? Gigaspora margarita, Glomus etunicatum, or a pool of native mycorrhizal fungi (Acaulospora longula, Glomus clarum, Gigaspora albida, Paraglomus sp.) ?, and a nonmycorrhizal control, in combination with five levels of phosphorus applied to the substrate: 0, 25, 50, 75, and 100 mg kg-1. After 180 days of growth, plantlets with inoculation of native mycorrhizal pool produced more shoot and root dry biomass and had higher shoot phosphorus content and accumulation. The noninoculated control showed the lowest values, independently of the phosphorus level. The highest relative mycorrhizal dependency occurred with the inoculation of native mycorrhizal fungi. Plants with mycorrhizal fungi did not respond to phosphorus addition above 50 mg kg-1. Mangaba tree is highly dependent on mycorrhiza, but the degree of dependency varies according to phosphorus levels and fungal inocula. In general, mangaba tree is more responsive to mycorrhizal fungi inoculation than to phosphorus addition.

2008
Tipo:  Artigo em periódico indexado (ALICE)
Idioma:  Inglês
Identificador:  44857

http://www.alice.cnptia.embrapa.br/handle/doc/122110

http://ainfo.cnptia.embrapa.br/digital/bitstream/item/106506/1/Mycorrhizal.pdf
Editor:  Pesquisa Agropecuária Brasileira, Brasilia, DF, v. 43, n.7, p.887-892, jul. 2008.
Relação:  Área de Informação da Sede - Artigo em periódico indexado (ALICE)
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