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XieYini,MoXiaoyong
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Early growth analysis and evaluation of 21 Eucalyptus clones in Leizhou Peninsula
Xie Yini,Mo Xiaoyong
(College of Forestry and Landscape Architecture, South China Agricultural University)
Abstract:
The growth, morphology, and wind resis- tance of 21 Eucalyptus clones were investigated and an- alyzed in Leizhou Peninsula, Zhanjiang city. The results showed that coefficient of variation of each index phe- notype varied from 15.21%-42.46%. There were sig- nificant differences among the clones in growth indexes. The top five clones with high individual volume were JJ144, 2#, 28#, 9#, and JJ197. The morphological index- es were significantly different among the clones. There were also significant differences among the clones in wind resistance index, and the clones with good wind resistance were 28#, JJ162, JJ195 and JJ215, their pres- ervation rate were more than 80%. It was found that tree height and DBH significantly correlated to individ- ual volume, and stem form was significantly related to branch. Using the principal component analysis, it was determined that JJ144, 2#, 28#, 9# and JJ162 were the excellent clones with good performance in the Leizhou area
Key words:  Eucalyptus clones · Growth · Wind resistance · Early growth analysis

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