%0 Journal Article %9 ACL : Articles dans des revues avec comité de lecture non répertoriées par l'AERES %A Bâ, A.M. %A Sanon, K.B. %A Duponnois, Robin %A Dexheimer, J. %T Growth response of Afzelia africana Sm. seedlings to ectomycorrhizal inoculation in a nutrient-deficient soil %D 1999 %L fdi:010020532 %G ENG %J Mycorrhiza %@ 0940-6360 %K ECTOMYCORHIZE ; SYMBIOSE ; ARBRE FORESTIER ; CROISSANCE ; NUTRITION MINERALE ; ETUDE EXPERIMENTALE %K SENEGAL ; BURKINA FASO %P 91-95 %R 10.1007/s005720050292 %U https://www.documentation.ird.fr/hor/fdi:010020532 %> https://horizon.documentation.ird.fr/exl-doc/pleins_textes/pleins_textes_7/b_fdi_53-54/010020532.pdf %V 9 %W Horizon (IRD) %X The growth and mineral nutrition responses of seedlings of two provenances of #Afzelia africana$ Sm. from Senegal and Burkina Faso, inoculated with four ectomycorrhizal (ECM) fungi (#Scleroderma$ spp. and an unidentified isolate) from the same regions were assessed in a pot experiment in savanna ECM-propagule-free soil deficient in NPK. There was little variation in the ability of the different fungal species to colonize roots of either provenance of #A. africana$ or to produce external hyphal in soil. Root colonization by ECM fungi and their hyphal development were not related to mineral nutrition or ECM dependency. Differences in P, N, Mg and Ca concentrations in the leaves of inoculated and non-inoculated #Afzelia$ seedlings were not always associated with production of biomass. Only leaf K concentration increased in both provenances after ECM inoculation. However, the Burkina Faso provenance responded better to inoculation with the two fungal isolates than the Senegal provenance in terms of biomass production. This was due to stimulation of root dry weight of the Burkina Faso provenance. Therefore, the hypothesis arises that non-nutritional rather than nutritional effects explain the contribution of ECM inoculation to the growth of #A. africana$ seedlings. (Résumé d'auteur) %$ 084SYMBIO03