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赤桉(Eucalybutus camaldulansis)、兰桉(E·globulus)为我省主要栽培桉树树种,具有生长快、适应性强的特点。但赤桉树干分岔弯曲、病虫危害突出,兰桉材质多呈扭曲。为解决这些矛盾,我们于去年开展了赤桉、兰桉的选优工作。优树的标准随树种、用途、地区和选种的任务而不同。为了解决优树标准问题,去年上半年我们在本省赤桉、兰桉分
Eucalyptus camaldulansis and E. globulus are mainly cultivated eucalyptus species in our province, which have the characteristics of fast growth and strong adaptability. But Eucalyptus trunk bifurcation bending, pests and diseases hazards, Eucalyptus mostly twisted material. In order to solve these contradictions, we carried out the selection of Eucalyptus grandis and Eucalyptus grandis in the past year. The criteria for elite trees vary with the species, use, region and selection of the species. In order to solve the problem of elm tree standard, in the first half of last year, we planted erythroculter, Eucalyptus in our province