白桦优树自由授粉子代测定及优良家系选择  

Half-sib Progeny Test of Plus Tree and Superior Family Selection of Betula platyphylla

作　　者：冷淑娇[1] 闫绍鹏[1] 

机构地区：[1]东北林业大学,黑龙江哈尔滨150040

出　　处：《林业科技》2011年第4期5-7,共3页Forestry Science & Technology

基　　金：黑龙江省科技攻关重大项目(GA06B301)

摘　　要：对辽宁省清源和黑龙江省塔河两个种源地5年生白桦子代测定林40个家系的树高、胸径、材积性状进行子代测定及优良家系选择的结果表明:两个种源地不同家系间树高、胸径、材积性状差异极显著,其中清源种源的Q3号为最优家系,其树高大于群体平均值7.467%,胸径大于群体平均值10.87%,材积大于群体平均值21.317%;塔河种源的T19为最优家系,其树高、胸径和材积较平均值增加27.88%、51.89%和85.18%。The height,diameter at breast height,and volume of 40 families of betula platyphylla（5-years-old）were measured and analyzed in Liaoning Province Qingyuan and Heilongjiang Province Tahe.The results showed that there were significant diffience in height,diameter at breast height,and volume among different families.Among the families,Q3 which was from Liaoning Qingyuan was the best families,tree height of Q3 7.467% higher than average of group,diameter at breast height 10.87% heigher than average of group and volume 21.317%;T19 which was from Heilongjiang Tahe also was the best families,the tree height,diameter at breast heigh and volume,in turn,increased by 27.88%,51.89% and 85.18% than average of group.

关 键 词：白桦 优树 子代测定 优良家系选择 

分 类 号：S792.153[农业科学—林木遗传育种] S722.5[农业科学—林学]