刚果12号桉优良无性系选育研究

对８个３年生刚果１２号桉无性系（含对照）的树高、胸径、单株材积、蓄积量、抗风率、基本密度、纤维长度和冲击韧性等８个性状进行了分析比较和综合评价。结果表明，无性系间每一性状的差异均达到极显，用综合评判法选出了２个综合性状好的优良无性系热研Ｂ号和大坡８７号，判定白石岭０６号、府城０３号等为综合性状较差，应淘汰或限制推广的无性系。

Clonal Selection of Eucalyptus 12 ABL

Eight clones of Eucalyptus l2ABL at age 3(including one for check)were comparedand analyzed in terms of such traits as tree height,diameter at breast height,volume, growingstock,windfastness,basic density,fibre length and impact tenacity. A significant differencewas found in each trait among the clones,and clones Reyan B and Dapo 87 having better multi-traits were recommended for planting while Baishiling 06,Shangchong 02 and Fucheng 03 werenot recommended for plahting or only for limited planting owing to their traits being mostly pcorby multifactorial judgement.