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对福建三明市中村采育场 9a生马尾松家系测定林中 73个家系、65 6个单株木材基本密度测定分析结果表明 ,木材基本密度在家系水平上变异较小 ,而在个体水平上变异很大 ;木材基本密度与胸径、材积、圆满度呈极显著的负遗传相关 ,与轮盘数呈显著的负遗传相关 ,与通直度呈极显著的正遗传相关 ;选择木材基本密度较大且生长迅速的马尾松家系和个体是有可能的
The analysis of the basic density of 73 pedigrees and 656 single trees in the Pinus massoniana family of 9a raw plantation of Zhongcun mining field in Sanming City, Fujian Province showed that the variation of basic wood density at the pedigree level was small, The basic density of wood was significantly negatively correlated with DBH, volume and fullness, negatively related to the number of roulette disks, and significant positive genetic correlation with straightness. The basic wood density was higher It is possible that the rapidly growing masson families and individuals in Masson