Selection of Eucalyptus grandis Fibre Timber Raw Material Forest Fine Clone

Through the determinations and analyses of 13 Eucalyptus grandis properties of clonal growth properties,wood fibre configuration and chemical composed component,and the multiple-character colligated judge,the fine grade of clones C1,C6,C9,and C10 with high growth amount,biomass,and fibre yield and fine wood quality,which might be emphatically popularized and applied as the fibre timber,were selected,the average about-4-year-old tree hight,dbh,log weight,fibre yield respectively reached 16.0m,13.9cm,47.5kg per tree,and 21.9kg per tree,the wood basic density,fibre length,and the ration of wood length to wood width were 0.569g.cm-3,0.926mm and 56.3 respectively; the clones with high growth increment and fine wood quality were selected,which were C1,C2,C3,and C4,those clones could be applied with selection according to the concrete south Fujian mountain land site condition.