02806naa a2200373 a 450000100080000000500110000800800410001902400440006010000250010424501520012926000090028152016880029065000230197865000170200165300220201865300280204065300250206865300280209365300250212165300190214670000190216570000160218470000200220070000180222070000230223870000230226170000170228470000210230170000140232270000260233670000190236270000220238177300290240321587442023-12-01       2023    bl uuuu     u00u1 u    #d7 ahttps:// doi.org/10.3390/f141121682DOI1 aSANTOS, M. E. C. DOS  aVariation in the Basic Density of Woods Produced in the Brazilian Semiarid Region Subjected to Different Irrigation Regimes.h[electronic resource]  c2023  aAbstract: The present work aimed to evaluate the wood of fourteen genetic materials (nine species, between native and exotic, and five clones of Eucalyptus) cultivated under two post-planting irrigation regimes in the Brazilian semiarid region. For each genotype, six trees (11 years old) were selected and subjected to two initial irrigation regimes (up to 12 months and up to 36 months) after planting. Discs of different stem heights were taken: 0% (base), breast height (DBH), 20%, 40%, 60%, 80%, and 100%. Samples were extracted along the radial axis of each disk at three regions (the pith-adjacent region, intermediate region, and bark-adjacent region). Samples were subsequently saturated in water to determine their density via the water displacement method. The irrigation systems caused changes in the pattern of radial and longitudinal variation in the clones regarding the proportion of woody material in the stem. Among the native species, Angico stood out with a high density and little juvenile wood, and Pau d’arco, with a low density and a high rate of juvenile wood. Among the exotic species, Nim presented a high density and a low rate of juvenile wood, and Chichá presented a high rate of juvenile wood and a low density. In the Eucalyptus hybrids, VE38 stood out with a high density. Overall, there was an influence from irrigation management, observed with greater intensity in exotic species for Mahogany and Acacia and for the VE41 and AEC1528 clones of Eucalyptus. The values of basic densities in the trees varied from 0.35 to 0.85 g·cm−3. There was good adaptation of native and exotic species and clones to the planting area in the Semiarid region.  aForest plantations  aWood quality  aEscassez de água  aPlantações florestais  aQualidade da madeira  aVariação de densidade  aVariation of density  aWater scarcity1 aMELO, R. R. DE1 aCORREIA, D.1 aSOUSA, J. A. de1 aSANTOS, A. M.1 aSILVA, A. K. V. DA1 aPAULA, E. A. DE O.1 aALVES, A. R.1 aSCATOLINO, M. V.1 aRUSCH, F.1 aMASCARENHAS, A. R. P.1 aPIMENTA, A. S.1 aSTANGERLIN, D. M.  tForests, 14, 2168, 2023.