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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 |
