通过多年桉树萌枝扦插生根成苗的研究，取得比较成熟的桉树技条扦插繁殖技术，为热带人工林营造提供了优质种苗。已扦插繁殖１４个优良树种，４２个优良种源家系。其中刚果１２号桉扦插生根率９０％～９６％，成苗率达８８％～９４％，尾叶桉生根率达８３％～９０％，成苗率在８１％～８７％，除了窿缘桉，柠檬桉难于生根外，其他１０种桉树生根率在７３％～９１％。采用舒根型黑色圆型塑料管容器，轻型混合扦插基质———椰糠＋谷壳＋黄心土、采穗圃枝条幼化处理后２５－２８天萌枝，控制小棚内相对湿度９５％以上，对提高桉树枝条扦插生根率，形成良好平衡根系、促进根系、苗木生长具有重要作用。建立了桉树优树无性系对比试验林，从中初选一批适合海南生长的高产优良树种种源家系──刚果１２号桉热研Ｂ号、尾叶桉９１０１、９４０１、细叶桉ＴＨ０１、ＴＲ０１、赤桉ＣＰ０２、斑皮桉、杂交桉ＴＨ９１１３、杂交桉ＴＨ９２２４等。 Through many years of eucalyptus canopy cuttings rooting research, access to more mature eucalyptus technology cutting propagation, for the creation of tropical plantations to provide high-quality seedlings. Has cuttings breeding 14 excellent species, 42 elite pedigree. Including Congo 12 Eucalyptus cuttings rooting rate of 90% to 96%, seedling rate of 88% to 94%, root eucalyptus rooting rate of 83% to 90%, seedling rate of 81% to 87%, in addition to the margin of Eucalyptus , Lemon eucalyptus difficult to root, the other 10 kinds of eucalyptus rooting rate of 73% to 91%. Shu Gen-type black round plastic tube container, lightweight mixed cutting substrate --- coconut husk + chaff + yellow heart soil, sprouts branches shoots 25-28 days after the young shoots sprout, control the relative humidity within the shed more than 95% , To improve rooting rate of cuttings of eucalyptus branches, forming a good balance of roots, and promote the growth of roots and seedlings play an important role. The eucalyptus superior tree clonal comparative test forest was established, and a batch of high-yield and good-quality tree provenance families suitable for Hainan growth were selected from them - ─ Eucalyptus 12, Eucalyptus urophylla 9101,9401, Eucalyptus urophylla TH01, TR01 , Eucalyptus eryngii CP02, Eucalyptus grandis, hybrid eucalyptus TH9113, hybrid eucalyptus TH9224 and so on.