刚果12号桉优良无性系选育研究

Clonal Selection of Eucalyptus 12 ABL

对８个３年生刚果１２号按无性系（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著，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、上０２号和府城０３号等为综合性状较差，应淘汰或限制推广的无性系。

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.