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经过３个年度种批的７４个种源其９～１２年生试验林的调查研究表明，在浙江地区火炬松种源间于生长、产量、形质和材性方面，主要性状的绝大多数存在着显著或极显著的差异，并受中度或中偏上广义遗传力的控制，干材干物质重的变幅和遗传变异系数较之其它性状更大。分析还表明，主要性状的变化与种源的原产地气候、地理位置重要因子有着复杂且多样的联系；重要性状相互间的简单相关关系亦表现不一，特别是材积和干材干物质重两性状间的各相关系数都在０．９５以上，木材基本密度与生长、产量方面的性状呈负向相关，与形质方面的性状呈正向相关
A survey of 9 provenances from 9 provenances at 74 provenances in three annual seedlings showed that most of the major traits exist in the growth, yield, quality and material properties of the provenances of Pinus taeda in Zhejiang province Significant or extremely significant differences were observed and controlled by moderate or moderate upper heritability. The coefficient of dry weight variation and genetic variation of dry matter were more than those of other traits. The analysis also shows that the changes of the main traits have complicated and diverse relations with the origin climate and the important factors of geographical location. The simple correlations of the important traits also show different characteristics, especially the dry matter weight and dry matter weight The correlation coefficients between the two were above 0.95. The basic wood density was negatively correlated with the growth and yield traits, and positively correlated with the traits