01662nam a2200157 a 450000100080000000500110000800800410001910000190006024500820007926001340016130000140029552011550030965000130146465000130147765000140149011324152015-10-09       1988    bl uuuu     u00u1 u    #d1 aLIMA, P. C. F.  aPerformance of species of the genus Prosopis at 24 monts of age in Petrolina.  aIn: INTERNATIONAL CONFERENCE ON PROSOPIS, 2., 1986, Recife. The current state of knowledge on Prosopis juliflora. Rome: FAOc1988  ap. 63-67.  aThe medium and long-term afforestation efforts with P. juliflora in the Brazilian Northeast, using P. juliflora seeds produced in the region itself, must take into account potential restrictions due to inbreeding problems, as pointed out by pires and Kageyama (1985). These authors, in studies conducred on a population in Soledade and included elsewhere in this book, found low heritability and genetic variability coefficients for height and DBH among families, in open-pollinated progeny trials. The need of enlarging the genetic base and gathering data on the performance of other species of Prosopis in the Brazilian semi-arid region prompted the National Forestry Research Progrma (PNPF), through the Agriculture and Livestock Research Center for the Semi-Arid Tropic (CPATSA), to introduce other species of this genus into the region. This paper describes the initial performance of P. alba, P. chilensis, P. pallida, P. velutina, P. gradulosa var, torryana, P. tamarugo and P. juliflora in Petrolina, Pernambuco, 24 months after planting, with the purpose of selecting those species which seem promising for firewood and/or fodder production.  aProsopis  aAlgaroba  aVariedade