桉树杂种优势利用研究进展

The Progress of Studies on the Utilization of Eucalyptus Heterosis

原产澳大利亚的桃金娘科桉属树种,由618个种组成,其遗传学特点为:同一亚属的种可以互交产生杂种,无性繁殖较容易,是选择天然杂种,开展人工授粉杂交育种的极好原始材料,世界桉树主要种植国十分重视该项工作开展,我国自80年代起也广泛进行这方面的工作。

The tree species of Eucalyptus of Myrtaceae native to Australia con-sist of 618 species and their genetic feathers are as follows: the species belongingto the same subgenus can intercross to produce hybrids;their asexual propaga-tion is relatively easy; and these species are the excellent original materials forselecting natural hybrids and carrying out cross breeding from artificial pollina-tion. The main eucalyptus-planting countries in the world attach importance tothe utilization of eucalyptus heterosis and since 1980s the work in this respecthas been extensively conducted in China too.