01980naa a2200265 a 450000100080000000500110000800800410001902400380006010000260009824501590012426000090028352011440029265000210143665000170145765000160147465300200149065300260151065300240153665300250156065300160158570000230160170000240162470000180164877300480166620502892016-08-15       2016    bl uuuu     u00u1 u    #d7 a10.1590/0102-33062016abb01012DOI1 aBRANDES, A. F. das N.  aAnnual tree rings in Piptadenia gonoacantha (Mart.) J.F.Macbr. in a restoration experiment in the Atlantic Forestbpotential for dendroecological research  c2016  aThe tree Piptadenia gonoachantha is widely used in forestry and in forest restoration projects, which require methods for evaluating tree growth. Long-term studies are necessary to determine patterns and detect changes in species growth rhythms. Tree ring analysis provides a precise method for determining age and documenting long-term growth trends in tropical tree species. The present study evaluated the periodicity of tree ring formation and radial growth dynamics of P. gonoachantha from a population of known age in the Poço das Antas Biological Reserve. Two radii from six trees were sampled using non-destructive methods. Tree rings were counted and measured to estimate age and to calculate diametric increment. All samples had 16 tree rings, which matched the known plantation age and confirmed the annual formation of rings. The individuals sampled had a mean annual diametric increment of 9.5 mm / year. Results showed a trend towards decreasing growth rate with increasing age. Individuals of P. gonoachantha in Ombrophilous Dense Forest produce annual tree rings, which holds potential for future dendroecological studies.  aDendrochronology  aPlant growth  aLeguminosae  aAtlantic forest  aCrescimento de planta  aFloresta Atlântica  aLeguminosa florestal  aRestoration1 aALBUQUERQUE, R. P.1 aMORAES, L. F. D. de1 aBARROS, C. F.  tActa Botanica Brasilica, Epub 14 jul., 2016