Growth of One Year Seedling of Taiwan Pine Provenance and Some Physiological Characteristics

Key words: 
• Pinus taiwanensis /
• provenance tests /
• variation ( genetics) /
• nucleic acids /
• carbon dioxide

Abstract: The results of study on the various indices of 7 provenances showed that the root s ageing of some seedling from Jinyun and Daiyunshan affected the surival rate. The 7 provenances were divided into 5 groups: Lin an-Jinyun, Huang shan-Kaihua, Jinzhai, Daiyunshan and Tiantai. The seedling growth in stem mainly started in the earlier stage, while its growth in conifenous and root in the middle and later stege. The closing degrees of gross increment of provenance and the variation were inconsistent. The regulation rhythm of cell membrane and the cluster result of 7 provenances were consistent in the middle period. The variable rhythm of membrane permeability directly was influenced by the closing degree of variation, when the outside permeation of the elect rolytes of 7 provenances at 30℃ increased. Kaihua provenance had a stronger power of controlling the permeation. The range of quantative change of nucleic acid was greater than that of RNA. According to the comparison of DNA a nd RNA, Kaihua was in the maxmum position, and Lin an in the minimum posi tion. Major factor for the grouth of seedling root was the generaring quantity of RNA. The ulilization power in CO2 of Jinyun and Tiantai was much stronger than that of Kaihua, Huangshan, Jinzhai, Daiyunshan and Lin an, which could be considered as a basis for the initial separation of seedling stage of pine provenance.