Growth pattern of Liriodendron chinense seedlings from different provenances
Annual growth rhythms of Liriodendron chinense Seedlings from 6 provenances (Jinping of Yunnan, Anji of Zhejiang,Wuyi Mountain of Fujian, Liping of Guizhou,Quanzhou of Guangxi, Lushan Mountain of Jiangxi) were studied The results were as follows: (l)The variance analysis of different provenances showed that the differences between tree heights were significant (2)The height growth of them was fitted by Logistic equation. The results showed that the growth patterns of height of different provenances were similar to'S'curves. (3)The height growth process of annual seedling was analyzed by the Sequence Cluster Method. The results indicated that the growth process of the seedling height could be divided into four stages,juvenile stage;early growth stage;rapid growth stage and late growth stage. Wuyi Mountain provenance entered the rapid growth stage at first and lasted the longest time. Lushan Mountain provenance entered the rapid growth stage at lasted and last the shortest time. The height increment of Anji provenance in the rapid growth stage accounted for the largest proportion of the annual height increment, up to 56. 05%, Wuyi Mountain provenance secondhand Lushan Mountain provenance the lowest,only 34. 29%. (4)6 provenances were analyzed by hierarchical clustering,then were divided into 3 groups. The first group included Quanzhou provenance, which had the best height growth. The second group included Jinping , Anji , Wuyi Mountain,Liping provenances. The last group included Lushan Mountain provenance.
国家科技期刊平台
NSTL
万方数据
维普
