Populus ussuriensis Kom. is the indigenous tree species of northeast in China with fast growth and materiall fine, it is the extremely good materials for papermaking and plywood. At present,Northeast forest region does not have or extremely little cut-over land,the planted land are the grain plots returned to forestry which drought,infertile and the productivity decline seriously, urgently needed massive new line of P. ussuriensis Kom with drought resistances, cold resistant, fast-growing, high quality. In ...
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