其用途仅限于保持育种材料或建立无性系种子园。
Its use is limited to the preservation of breeding material or the establishment of clonal seed orchards.
本文是24年来开展云南松无性系种子园营建技术及其有关方面研究的总结。
This paper is the summary of research on establishment techniques and relevant aspects of Pinus yunnanensis clonal seed orchard which have been done for 24 years.
通过高产脂马尾松初级种子园产脂力测定，结果表明：14个3重复和19个2重复无性系间的差异都达到极显著性水平。
The results showed that the differences among 14 3-replication clones and 19 2-replication ones all reached the extremely significant level.
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