| 摘要: |
| 对45个油松优树的半同胞子代进行了测定，从中选出8个树高、胸径、材积平均增产18.3％，28.4％和91.7％的优良家系，其遗传增益分别为12.8％，11.9％和30.9％。再从优良家系内选择44株优良单株，其树高、胸径、材积平均增产29.9％，36.9％和128%，预期遗传增益分别为11.7％，15.4％和43.2％，选出的优良单株可用于高世代种子园的营建。 |
| 关键词: 油松 优良家系 优良单株 配合选择 |
| DOI： |
| 分类号: |
| 基金项目:国家林业局重点项目（2003-023-L23）；西北农林科技大学育种专项（05YZ-035-1） |
|
| Combination selection of excellent families and plus trees of Pinus tabulaeformis |
|
|
| Abstract: |
| By means of halfsib progency test on 45 families of Pinus tabulaeformis,8 excellent families were selected whose average height,breast diameter and volume increased by 18.3%,28.4% and 91.7% with 12.8%,11.9% and 30.9% of genetic gains respectively.44plus tree were further selected from the excellent families with increases of 29.9%,36.9% and 128% in average height,breast diameter and volume,and their expectant genetic gains of 11.7%,15.4% and 43.2% respectively. The excellent individual selected can be used in building seed orchard of higher generation. |
| Key words: Pinus tabulaeformis excellent family plus tree combination selection |
