美国火炬松优良家系引种试验研究  

TRIAL OF INTRODUCED SUPERIOR FAMILIES IN LOBLOLLY PINE FROM THE UNITED STATES

作　　者：钟伟华[1,2] 石斌 何昭珩[1,2] 王章平 李灼良 周宏 

机构地区：[1]华南农业大学 [2]国营九曲水林场

出　　处：《广东林业科技》1997年第2期1-6,共6页Forestry Science and Technology of Guangdong Province

基　　金："七五"国家科技攻关课题;中国林木种子公司资助

摘　　要：从美国引入火炬松种子园自由授粉的３３个优良家系进行引种试验，结果表明：家系间树高、胸径、单株材积生长量差异显著，经ＬＳＤ比较选择，仅有６个家系单株材积生长量优于商品种（ＣＫ３）；家系前－后期树高生长相关极显著；家系的遗传力大于单株的遗传力。结果还显示，引进经人工选择的优良家系，还需经过引种区测试，并注意选择最适种源区，方能用于育种与生产。From the response of 33 open pollinated loblolly pine families introduced from the United States, this study shows that there is highly significant difference among the families in height, D.B.H. and volume, only a few families were superior than the commercial check lot (CK3). The result also indicated that it is neccessary to solve the problems of adaptabilyty and provenance when inducing the selected superier families.

关 键 词：火炬松 半同胞家系 早期选择 引种 

分 类 号：S791.255[农业科学—林木遗传育种]