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研究了32个油松无性系的球果与种子的性状变异，初步了解到种子园各无性系的种子品质，分析了球果与种子之间的性状相关性，为油松优良无性系的选择和初级种子园留优去劣疏伐提供了参考。
The genetic variation of cones and seeds in 32 Pinus tabulaeformis clones was studied. The seed quality of each clones in seed orchard was preliminarily studied, and the correlations between the cones and seeds were analyzed. And the primary seed orchard superior to poor sparse logging provides a reference.