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本实验采用河南省引种火炬松 1984年一般种源、1983年耐寒种源试验林为材料 ,研究林木不同生长阶段年轮宽度 ,晚材率与木材基本密度间的相互关系 ;结果表明火炬松林分早期生长阶段年轮宽度与木材基本密度间存在着显著的负相关。林分郁闭后年轮宽度、胸径与木材密度存在着极其微弱的负相关 ,不同生长阶段晚材率与木材基本密度均呈显著的正相关。早期优良种源评选没有考虑木材性状是不符合工业人工林培育种源选择的标准
In this experiment, the general provenance of introduced Pinus taeda in Henan Province in 1984 and cold-resistant provenance test forest in 1983 were used as materials to study the relationship between the width of annual rings and latewood rates and the basic density of wood in different growth stages of forest trees. There was a significant negative correlation between the width of annual rings and the basic wood density in the early growth stage. There was a very weak negative correlation between the width of the annual ring and the diameter of the wood, and the late woody rate of the different growth stages was positively correlated with the wood basic density. Early good provenance selection did not consider the wood traits is not consistent with the standard selection of industrial plantation breeding provenance