Improved Variety Populus Alba×Populus Bolleana and its Parents Growth Characteristic

Studied on improved varieties and its parents growth characteristics. Discusses the Populus fine varieties Populus alba×Populus bolleana with its parents differences to promote varieties of Populus to provide a theoretical basis for Populus alba×Populus bolleana .The results showed:(1) Comparison of 3 varieties height accumulative increment consistent, individual difference were not significant. (2) 3 poplar varieties cumulative growth of DBH have difference, xinjiang Poplar DBH growth in the 2-8 years was slow , while the Populus alba Linn. and Populus alba×Populus bolleana continued to grow. 3 varieties DBH growth contrasts: Populus alba×Populus bolleana > Populus alba Linn.> Populus alba.(3) Populus is significantly lower than the volume growth Populus alba×Populus bolleana. Populus alba×Populus bolleana volume growth in 15 years and still maintain a high level of greater than Populus alba Linn.Populus alba Linn.and Populus alba.before the Populus alba×Populus bolleana arrivals the quantitative maturity .