| I have been involved in eucalypts field for almost the pastten years , such as eucalyptus introduction, species-provenance trials and tissue culture and plantation management. Based on the climate conditions and experiments from the works, also in view of the Hunan region' s climate conditions and based on my experiments from such works, an effective measurement was taken to identify the cold-resistance ability of eucalyptus. Meantime, a series of tree species, provenances and families introduction trials also have systematically been conducted. Prelieminarily, we have selected a lot of good provenances and species and we have established our eucalypts basic breeding population. Also, over the course of our research project, we have focused on those works, namely, e. camaldulensis plus trees selection from Hunan exisisting eucalypts plantations which have experienced strong frost examination. Then such plus tree' s cold tolerant abilities have been assessed using electricity-conductivity methold. We have selected cold tolerant families as a core breeding population. Then we have explorated advanced tissue culture technology and cutting multiplication propagation metholds, which greatly cut down breeding cycle time. Our research works will provide an imformative scientifical overviews and framework of ideas for the management of genetic improvement of a tree species used in manmade forests. Particularly, sophisticated tissue culture technology makes one aware that outstanding individuals of biolodgy can be put into a large scale vegetative propagation,which is far-reaching important. Information have been collected on how best to apply fertilization and best combinations in relation to initial spacing and fertilizer applications. |
