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对造林 17个月后巨桉的 12个种源、80个家系的树高和地径生长进行了测定与分析 .结果表明 :巨桉家系幼林种源间、家系间树高和地径生长差异显著 ;树高和地径生长相关密切 ;5号和 3 3号家系树高生长最优 ,其次是 9,63和 75号家系 ;地径生长以 5 ,3 3和75号家系最优 ,其次是 6,9,14,2 5 ,3 6,41,45 ,63 ,64 ,70 ,77和 80号家系 .该研究为巨桉种源和家系的早期选择提供了基础数据
The tree height and diameter growth of 12 provenances and 80 pedigrees of giant eucalyptus were measured and analyzed after 17 months afforestation.The results showed that there was significant difference in tree height and diameter growth between the families and families of the young Eucalyptus grandis families The tree height was closely related to the growth of the ground diameter; the tree height of the 5th and the 3rd families was the best, followed by the 9th, 63th and 75th lines; 6, 9, 14, 25, 36, 41, 45, 63, 64, 70, 77 and 80. The study provided the basic data for the early selection of Eucalyptus grandis provenances and pedigrees