Data/hora: 24/06/2024 23:54:24

Biblioteca(s): | Embrapa Agrobiologia.
Data corrente: | 20/09/2001
Data da última atualização: | 20/09/2001
Autoria: | BA, A. M.; PLENCHETTE, C.; DANTHU, P.; DUPONNOIS, R.; GUISSOU, T.
Título: | Functional compatibility of two arbuscular mycorrhizae with thirteen fruit in senegal.
Ano de publicação: | 2000
Fonte/Imprenta: | Agroforestry Systems, Netherlands, v. 50, p. 95-105, 2000.
Idioma: | Inglês
Conteúdo: | Functional compatibility between thirteen tropical fruit trees (Afzelia africana Smith., Adansonia digitata L., Aphania senegalensis Radlk., Anacardium occidentale L., Cordyla pinnata (Lepr. ex A. Rich.) Milne-Redhead, Dialium guineensis Wild., Landolphia heudelottii A.DC., Sclerocarya birrea (A.Roch.) Hochst., Saba senegalensis (A. DC.) Pichon and four reference hosts Balanites aegytiaca (L.) Del., Parkia biglobosa (Jacq.), Tamarindus indica L. and Zizyphus mauritiana Lam.) and two arbuscular myvcorrhizal fungi (AMF) (Glomus aggregatum Schenck and Smith emend. Schenck and Glomus intraradices Schenck and Smith), was investigated. Marked differences were found between them in terms of mycorrhizal formation, root colonization, relative mycorrhizal dependency (RMD) and phosphorus concentrations  in shoot tissues. A. africana, L.heudelottii and S. senegalensis did not form symbiotic associations, and the growth of A. africana decreased following mycorrhizal inoculation, while L. heudelottii and S. senegalensis showed no dependency. In contrast, A. digitata, A.senegalensis, A. occidentale, B.aegyptiaca and S. birrea were well colinized with AMF, but did not significantly increase in biomass production. Five fruit trees did, however, show dependency by a positive interaction with G.aggregatum, the most effective AMF. Z. mauritiana was found to be very highly dependent (RMD>75%), T.indica was highly dependent (50-75% RMD), and D. guineensis, P.biglobosa and C.pinnata were moderately dependent (25-50% RMD). Phosphorus absorption probably contributed to this dependency more than the absorption of potassium. These results indicate that some tropical fruit trees do derive benefits from AM inoculation, while others do not.
Palavras-Chave: | Colonization; Fruit trres; Mineral nutrition; Nutrição mineral; Preparação.
Thesagro: | Árvore Frutífera; Colonização; Micorriza; Micorriza Vesicular Arbuscular; Raiz; Solo.
Thesaurus Nal: | mycorrhizae; roots; vesicular arbuscular mycorrhizae.
Categoria do assunto: | --
Registro original: | Embrapa Agrobiologia (CNPAB)
Exemplares: | CNPAB - (24660-1) - ADD - SP - -- -  -  - 22470 - DIS