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以尾叶桉为母本，细叶桉、赤桉、窿缘桉、柳桉、巨桉、雷林一号桉、巨桉×尾叶桉和粗皮桉为父本，进行了２０１个组合的人工控制授粉，已掌握各亲本树种的开花物候。改进花粉处理和贮藏以及人工授粉技术，经干燥处理的花粉，在低温（－１８～２２℃）下贮藏４２个月，发芽率保持在６０％以上。建有７２个杂种桉参试的试验林７块。３年生杂种桉的材积生长大部分具有明显的杂种优势，配合力强的尾叶桉×细叶桉和尾叶桉×赤桉，单株材积的实际增益分别为１２０．７３％和８９．４０％。
Eucalyptus urophylla, Eucalyptus urophylla, Eucalyptus grandis, Eucalyptus urophylla, Eucalyptus globulus, Eucalyptus grandis, Eucalyptus urophylla, Eucalyptus grandis × Eucalyptus urophylla and Eucryptopsis eucalyptus were used as parents to conduct 201 combinations Artificially controlled pollination, have access to the flowering phenology of the respective parent tree species. Improved pollen processing and storage and artificial pollination technology, dried pollen, stored at low temperature (-18 ~ 22 ℃) for 42 months, the germination rate remained above 60%. There are 72 hybrid plots of test forest 7. Most of the annual growth of 3-year-old hybrid eucalyptus had obvious heterosis. The actual gains of single-leaf volume of Eucalyptus urophylla × Eucalyptus urophylla × Eucalyptus urophylla × Eucalyptus urophylla were 120.73% and 89.40 %.