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对1982年种植在临川荣山的火炬松种源林进行生长和材质性状的测定和分析。摘要表明,种源间各性状的表型差异都较大;选择晚材率高的种源,可以同时具有高的基本密度和大的树高生长量;基本密度种源平均值的广义遗传力达0.5283;单株木各性状除树高与胸径相关密切外,其余性状之间相关较弱,基本上是独立遗传的,笔者认为,先选择生长和材质性状兼优的种源,再在其中选育优良单株,是火炬松较理想的选择策略。
The growth and material traits of Pinus taeda plantations planted in Linchuan-Rongshan in 1982 were measured and analyzed. The summary shows that the phenotypic differences among the provenances are large. The selection of provenances with high latewood rate can have both high basic density and large tree height growth. The general heritability of the average density of provenances Up to 0.5283. In addition to the tree height and DBH are closely related to the characters of single plant wood, the correlation between the other characters is weak, which is basically an independent genetic. In my opinion, first select the provenances with good growth and material traits Breeding fine single plant, which is the ideal choice of loblolly pine strategy.