不同年龄杉木无性系交配的研究

STUDIES ON THE MATING AMONG CLONES OF CUNNINGHAMIA LANCEOLATA AT DIFFERENT AGES

分别于 1 982、1 989和 1 991年 3次开展了老龄杉木无性系和杉木优良无性系互作为父母本的析因交配试验 ,共获得了 5 8个交配组合 ,利用 3片子代测定林历年的调查资料 ,进行了方差分析、数量遗传分析等 ,在此基础上初步提出了利用老龄杉木无性系作交配亲本时最好以杉木优良无性系作母本、老龄杉木无性系作为父本 ;选出建 3 6、王台老龄杉木、闽清 1老龄杉木和尤溪老龄杉木无性系 4个优良的杉木交配母本 ,建 3 6、三 67和闽清 1老龄杉木无性系 3个优良的杉木交配父本 ;通过综合分析、评价 ,从参试的 5 8个交配组合中选出各年都表现好的三 5 4×闽 1、王台×三 66、闽 1×锦 8、闽 2×建 3 6、闽 1×三 67、尤溪×三 67等 6个交配组合 ,增产效果显著 ,这些优良交配组合既可作为杉木高世代种子园的建园材料 ,也可以通过群体无性化 ,提高繁殖系数 ,供生产应用 ,还可以作为高世代育种材料。

Factorial diallel matings were carried out in 1982,1989 and 1991 by using excellent clones of Cunninghamia lanceolata and some clones of old C. lanceolata as parents and 58 matches were obtained which were used to build 3 control-pollinated progenies tests. According to the analysis of variance and quantitative genetics for control-pollinated progenies tests,the preliminary result was that it was a good choice to use excellent clones of C. lanceolata as female parents and to use clones of old C. lanceolata...