Abstract:

The analysis of variance was adopted to study the genetic variation of 105 9-year-old open-pollinated progenies of Pinus massoniana at Zhongcun Felling and Silvicultural Farm of Sanming and State-owned Forest Farm of Xikou ,Xianyou,Fujian Province. The results showed that there were significant differences at 0.01 level among families in growth traits such as height,DBH and stem volume, and the variations were mainly controlled by genetic factors. There were also differences among families in wood basic density, wood chemical compositions , wood fiber traits ,stem straightness and stem fullness. Based on the production of dry wood in individual and other traits,9 excellent families for construction timber including W00251 and W00255 were selected among 105 families in Sanming and 9 excellent families for construction timber including W00308 and W00298 were selected among 105 families in Xianyou. Based on the production of cellulose in individual and other traits, 10 excellent families for pulpwood including W00249 and W00251 were selected among 105 families in Sanming and 10 excellent families for pulpwood including W00307 and W00335 were selected among 105 families in Xianyou. All the selected families had not only high production of dry wood or cellulose but also had good performance of growth traits. These families could be applied in afforestation.

Key words: Pinus massoniana, Open-pollinated progeny, Pulpwood, Construction timber, Family selection