The recovery of degraded ecosystems demands research with native species that can support forest restoration
programs. The production of seedlings with native tree species in association with soil microorganisms is
an important technique for the rehabilitation of these environments. This study aimed to evaluate the effects
of inoculation with arbuscular mycorrhizal fungi (AMF) and phosphorus nutrition on growth and nutrient
content of paricá seedlings [
Schizolobium parahyba var.
amazonicum (Huber ex Ducke) Barneby]. The
experiment was conducted in a greenhouse for a period of 75 days, using a completely randomized design
in a factorial 4x4, inoculation with AMF:
Rhizophagus clarus
,
Gigaspora margarita
, mixed inoculum (
Rhizophagus clarus +
Gigaspora margarita) and control (without AMF), four P doses: 0, 60, 120 and 180
mg dm
-3 soil, with four replications. The variables height, dry matter area, root dry matter, leaf area, stem
diameter and the contents of N, P, K, Ca and Mg in shoots, were evaluated. Paricá seedlings showed higher
colonization percentage for
Rhizophagus clarus and mixed inoculum (80 and 90%, respectively), different
from that observed for the species
Gigaspora margarita, with a lower percentage (20%). The
Rhizophagus
clarus and mixed inoculum, in the absence of P, increased the growth variables relative to the control plants.
The contents of N, P, Ca and Mg were influenced by the AMF and by the doses of P.