杉木基因资源收集、保存和利用的研究

ACQUISITION, CONSERVATION AND UTILIZATION OF GENETIC RESOURCES IN CHINESE FIR

在介绍基因资源调查、收集方法的基础上 ,提出基因资源命名与编号的方法 ,论述了保存“方法多样化、滚动式发展、保存与利用相结合”的保存方式和技术。保存基因资源 31 1 3个编号、1 876 4个个体。建立了种源基因资源继代保存林和“陈山杉”优良小群体原境保存林。对有关基因资源作了形态学、物候学、形态与生长、材性、同功酶谱等的调查与分析。提出冠层浓密、宽冠、反卷果鳞等与高材积量相关 ;灰枝杉同功酶谱有异、黄枝杉木材密度大等观点。研究了“陈山杉”林分的形状结构与材性特点。

Based on an introduction to methods used for acquisition, conservation and utilization of genetic resources, methods for classification and nomenclature of genetic resources and number them and the conservation techniques that “diverse methods, rolling development and integrated conservation and utilization” were proposed. 3113 seedlots containing 18764 individuals of Chinese fir were conserved, A second generation provenance gene pool and an in situ conservation stand of a small population of superior “Chenshan Chinese fir” were established. Form traits, phenology and relations of origin to growth, wood properties and isozymes were investigated. Canopy density, crown width and winding extent of cone scales were significantly and positively related to volume growth in general. There was isozyme variation in the grey branch Chinese fir and Yellow branch Chinese fir has large wood density. Wood properties of “Chenshan Chinese fir” and the structure of its stand were also studied.