Desenvolvimento Vegetativo e morfologia radicular de citrange carrizo afetado por ácido indolbutírico e micorrizas arbusculares

this study was carried out in alcanar (tarragona - spain) to evaluate the effect of five indolebutyric acid (iba) concentrations (0.0; 0.5; 1.0; 1.5; 2.0 g/l) and inoculation with arbuscular mycorrhizae fungi (amf) (glomus intraradices schenck & smith) on carrizo citrange (citrus sinensis (l.) x poncirus trifoliata (l.) raf.) vegetative development, p and k foliar contents and root morphology. the experimental design was in a completly randomized block design with 10 seedlings per plot and 4 replicates. the iba concentrations had no effect on vegetative development of nonmycorrhizal seedlings, althougt it had increased p and k foliar contents and primary xylem tickness. amf increased p foliar content. iba x amf interaction was observed, increasing iba concentrations on mycorrhizal seedlings resulted in increased in vegetative development, p and k foliar contents and primary xylem thickness.