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本文研究了樟子松10个种源及其幼苗性状的地理变异规律,通过研究表明:各地种子及其幼苗性状存在显著差异;种子的大小、重量与经纬度呈极显著的负相关;种子萌发能力与纬度呈极显著的正相关;根系长度与经度呈显著的负相关。各地生态因子聚类与种子及其幼苗性状聚类基本吻合,划分的种源区可供今后种子区区划研究参考。
In this paper, the geographical variations of 10 provenances and their seedling traits in Pinus sylvestris var. Mongolica were studied. The results showed that there were significant differences in the seed and seedling traits among the seedlings; the seed size and weight had a significant negative correlation with latitude and longitude; And the latitude is extremely significant positive correlation; root length and longitude showed a significant negative correlation. The clustering of ecological factors clustered with the clustering of seeds and their seedling characteristics basically, and the provenance areas were available for reference for the future study of seed area zoning.