Wood Genetic Variation of Acacia auriculiformis at Wonogiri Trial in Indonesia

Abstract

Provenance progeny trial of Acacia auriculiformis plants growing at Wonogiri,Indonesia comprised of 129 half-sib families obtained from 12 provenances. The studyused 3 year-old plants, beginning from seedling. Parameters included growth traits diameter, height, stem form and bark thickness , and wood characteristics color,moisture content, and speciſc gravity . Genetic variations in the traits were studied andgenetic parameters were estimated.High variation among the A. auriculiformis families within provenance in the trialwere found on diameter, height, stem form, wood color percentage of black colorarea , and moisture content. Individual heritabilities in A. auriculiformis plant were0.33 for height, 0.40 for diameter, 0.54 for stem form, 0.48 for wood color, 0.46 formoisture content, and 0.18 for both bark thickness and wood speciſc gravity. Diameter,stem form and wood color indicated substantial improvement on the traits and woodcharacteristics that would follow selection for this trait