油松半同胞子代测定试验报告  

EXPERIMENTAL REPORT OF THE HALF-SIBLING PROGENY TEST ON PINUS TABULAEFORMIS

作　　者：王亚峰 薛崇伯 杨培华 郭俊荣 毋宇佳 郗宏钧 刘存林 陈长林 

机构地区：[1]陕西省林科所 [2]陇县林业局

出　　处：《陕西林业科技》1990年第1期1-8,共8页Shaanxi Forest Science and Technology

摘　　要：根据子代测定结果,参试的22个家系可分为3种类型,即“速生稳定型”,占23.8%,“慢生型”,占19.0%,“变化型”,占57.2%。通过综合评定,从22个家系中选出5个优良家系,与对照相比,树高大13.8%,胸径大29.1%,材积大69.9%,在树高、胸径生长上分别可获得9.1%、17.5%的遗传增益。从种子园自由授粉54个家系中选出11个优良家系,树高的增益为21%。生长性状早晚相关分析结果,说明早期选择是有效的。According to the results of progeny test,22 families can be divided into three types-fast & stable growth type with 23.8%,slow growth type with 19.0% and variation type with 57.2%,By the comprehencive ev- aluation,5 promising families were selected from 22 test families.As co- mpared with controls,tree height is over 13.8%,DBH is over 29.1%,volu- me is over 69.9%,the genetic gains of tree height and DBH are over 9.1% and 17.5%.11 promising families were selected from 54 open pollination families.The genetic gain of tree height is 21.0%.The correlation analysis of tree growth in the early and last periods shows that the selection of ear- ly growth period is effective.

关 键 词：油松 半同胞子代 测定 

分 类 号：S791.254[农业科学—林木遗传育种]