Populus deltoides CL.'Danhong'was selected by the Chinese Academy of Forestry and Eucalyptus grandis×E.urophylla was selected by the Forestry Research Institute of Guangxi. The two superior clones were fast growth and high economic value.They had been widely cultivated and were main clones of construction of commercial forests in south of China.
The major objective of this paper was to establish the optimal regeneration systems for Populus deltoides CL.'Danhong'and Eucalyptus grandis×E.urophylla in vitr...