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对富阳点１０年生火炬松种源试验林的研究结果表明，幼龄材阶段以建筑用材为目的的主要性状在种源间差异均为极显著；其中生长性状表型变异系数为１０％～３０％，木材物理力学和管胞形态特征的在５％左右，变幅的极差以材积最明显，可达１倍以上；各性状受中等或中上遗传力控制。性状间的简单表型相关，在生长与木材物理力学和管胞形态特征性状上表现出关系不密切、或者很微弱、方向各异的现象。用初级指数法评定出ＲＬ３１、ＲＬ２６、ＲＬ３０、ＲＬ２２、ＣＬ８共５个生长、材质兼优的建筑材种源，与林分均值相比，其平均遗传增益在材积、木材基本密度、顺纹抗压强度、抗弯强度上分别为５．９６％、５．４４％、３．１７％、４．８７％。
The results of 10-year-old trial of Pinus densiflora plantation in Fuyang County showed that the main traits of construction timber for young-aged timber were extremely significant among the provenances. The variation coefficient of phenotypic variation of growth traits was 10% ~ 30 %, Wood physical mechanics and tracheid morphological characteristics of about 5%, the amplitude of the range of the most significant volume, up to 1 times more; the traits of the middle or upper heritability control. Simple phenotypic correlations between traits show a weak relationship between growth and physical and mechanical characteristics of tracheids and morphological traits of tracheids. The primary genetic index of RL31, RL26, RL30, RL22, CL8 was used to evaluate the biomass sources of five building materials with good material quality. The average genetic gain was significantly lower than that of stand average in timber volume, basic wood density, The compressive strength and flexural strength were 5.96%, 5.44%, 3.17% and 4.87% respectively.