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对马尾松种源性状间的相关性研究结果表明:(1)马尾松种源树高、胸径、材积等生长性状间在年重复和地点重复中表现出高度的一致。原产地温度高,降水量大,生长表现好;(2)病虫害性状受环境影响较大,与原产地经度呈显著正相关;(3)造林成活率和保存率与生长性状为显著负相关;(4)马尾松种源早-晚龄树高生长表现出相对的一致性,苗高与9年生树高的相关系数在0.7～0.75之间;(5)早晚结实量与纬度为显著正相关,与生长性状为显著负相关,生长越好的种源,早期结实量越少。另外,还介绍了计算和检验多点相关系数的数学方法。
The correlation between provenances of Pinus massoniana was studied. The results showed that: (1) There was a high degree of consistency between the annual and repeated plots of Pinus massoniana provenances such as tree height, breast diameter and volume. (2) Pest and disease traits were significantly affected by the environment and had a significant positive correlation with the longitude of the place of origin; (3) There was a significant negative correlation between survival rate and preservation rate of afforestation and growth traits; (4) The relative growth of Pinus massoniana provenances from early-late age showed relative consistency, and the correlation coefficient between seedling height and 9-year-old tree height was between 0.7 and 0.75. (5) There was a significant positive correlation between morning and evening seed setting and latitude , And negatively correlated with the growth traits, the better growth of provenances, the less the early stool. In addition, mathematical methods for calculating and verifying multi-point correlation coefficients are also introduced.