EFFECT OF INVERSION ON TREATMENT OF FENCE SUBJECTED TO SAP DISPLACEMENT METHOD

• Main Authors: Juarez Benigno Paes, Gerlanda Caetano dos Santos, Rafael Rodolfo de Melo, Carlos Roberto de Lima, Wlademir Nicolau Sobrinho
• Format: Article
• Language: Portuguese
• Published: Universidade Federal de Santa Maria 2014-03-01
• Series: Ciência Florestal
• Subjects: algaroba; leucena; CCB; substituição de seiva
• Online Access: http://cascavel.ufsm.br/revistas/ojs-2.2.2/index.php/cienciaflorestal/article/view/13338
• ISSN: 0103-9954; 1980-5098

<p><a href="http://dx.doi.org/10.5902/1980509810538">http://dx.doi.org/10.5902/1980509813338</a></p>This work aimed to evaluate the effect of inversion of Prosopis juliflora and Leucaena leucocephala fenceposts, in distribution, penetration and retention of copper chrome borate (CCB) solution applied by sapdisplacement method. The Prosopis juliflora was collected in Brazilian Agricultural Research Company(EMBRAPA) and the Leucaena leucocephala at the Federal University of Campina Grande in Patos,Paraíba state, Brazil. Trees with DAP from 5.0 to 10.0 cm were employed. Disks of 2.0 cm of thicknesswere retired on the top and on the base of pieces. The external disks were then discarded and the internones were employed to determine the wood characteristics, being the round pieces with 2.0 m. A solutionof 2% of active ingredients of CCB was used to treated woods. A total of 10 pieces of each species weretreated, and five of them remained in the solution for 8 days and the five ones had their tops inverted afterthe sixth day of treatment. The pieces were seasoned; disks of 2.0 cm of thickness were taken in 5 positions along of pieces and the analyses for determination of copper and boron penetration took place. The valuesof wood characteristics indicated that the pieces were homogeneous. The absorption of the solution was of19.9 liters (Prosopis juliflora) and of 17.0 liters (Leucaena leucocephala). The nominal retentions of CCBwere 7.72 and 5.34 kg active ingredients (a.i.)/m3, respectively. In general, the inversion of the pieces inthe preservative solution is recommended, by providing a better distribution, penetration and retention ofCCB on treated pieces.