桉树种间杂种的比较和选择研究  

Comparison and Selection of Eucalyptus Interspecific Hybrids

作　　者：吴坤明[1] 吴菊英[1] 甘四明[1] 卢国桓 林康銮 陈于香[1] 

机构地区：[1]中国林业科学研究院热带林业研究所,广东广州510520 [2]广东省新会市林业局,广东新会529100

出　　处：《林业科学研究》2002年第1期1-6,共6页Forest Research

基　　金："广东省桉树发展工程---桉树杂交育种课题 (1996 2 0 0 0 )";广东省"九五"重点科技攻关项目"桉树纸浆材树种良种选育及栽培技术研究 (1996 2 0 0 0 )"的研究内容

摘　　要：对 13个尾叶桉×细叶桉杂种、10个尾叶桉×赤桉杂种、1个尾叶桉× (尾叶桉×细叶桉 )杂种、1个尾叶桉种内控制授粉子代、5个尾叶桉母本的自由授粉子代和 1个尾叶桉×细叶桉F1自由授粉子代的比较研究表明 ,家系间树高、胸径和材积的差异均达 0 0 1显著水平。选择出优良杂种和子代 14个以及优良单株 12株。优良单株可以作为无性系比较试验的材料 ,优良杂种的优良单株可以用于建立下一世代的育种群体。这为优良杂种单株的无性系化和进一步的桉树杂交育种提供了有效的遗传材料。Progeny test was made with 13 hybrids of Eucalyptus urophylla × E.tereticornis , 10 hybrids of E. urophylla × E.camaldulensis , 1 hybrid of E. urophylla × ( E. urophylla × E.tereticornis) , 5 open pollinated families from the maternal trees of E. urophylla, and 1 open pollinated family from E. urophylla × E. tereticornis. Differences in height, diameter and volume were found at 0.01 significance level both among families and among replicates. Significant replicate among difference might be due to the uneven site condition to which hybrid was susceptible. Fifteen superior families and twelve superior hybrid individuals were selected out for further hybridization and clone test purposes.

关 键 词：桉树 种间杂种 子代测定 选择 代良单株 无性系化 杂交育种 

分 类 号：S792.390.4[农业科学—林木遗传育种] S722.3[农业科学—林学]