杉木纸浆材无性系选择研究  

Study on Selection of Pulpwood Clone of Chinese Fir

作　　者：许忠坤[1] 徐清乾[1] 

机构地区：[1]湖南省林业科学院,湖南长沙410004

出　　处：《林业科学研究》2004年第6期711-716,共6页Forest Research

基　　金：国家十五攻关项目"南方主要针叶用材树种新品种选育及培育技术"

摘　　要：经过16a对杉木无性系材积、单株干物质、单株纤维量、纤维长、纤维宽、纤维长宽比、纤维含量、木材密度的变异规律和各性状间的相关关系进行了研究。结果表明:无性系间各性状存在极显著差异,纤维长、宽不受立地影响。材积、纤维含量、木材密度对单株纤维量贡献率分别为61 7%、22 6%、15 7%。各性状遗传力0 51～0 68。选出了长纤维型造纸材优良无性系12个、中纤维型造纸材优良无性系4个、适合立地条件较差的造纸材优良无性系4个。Based on 16 years' studies, this paper explored and made clear the change laws of volume, dry matter of individual tree, fibre weight of individual tree, fibre length, fibre width, ratio of fibre length to width,fibre content and density of timber and the correlation of these properties.There were greatly obvious discrepancies among the properties of different clones,both fibre length and fibre width were not affected by site.The contribution rates of volume,fibre percentage and density of timber to fibre capacity of individual tree were respectively 61.7%,22.6%,15.7%.The hereditary capacity was in the range of 0.51～0.68.By comparison,12 clones of long-fibre,4 of medium-fibre and 4 clones suitable for poor site condition were selected.

关 键 词：杉木 纸浆材 无性系 材积 木材密度 纤维含量 

分 类 号：S791.27[农业科学—林木遗传育种]