对马尾松地理种源四个试验点的64个马尾松种源,进行了生长发育及适应性的研究。初步摸清了马尾松在河南的变异规律。通过主分量分析、聚类分析,对参试种源进行了种群的划分,区分出南、中、北三个地理带和六大种群。用综合评定法,评选出14个适合河南生长的优良种源,其六年生的树高、直径、材积分别比本省对照种源大18.6%、17.1%和58.4%,增产效益显著。同时为河南马尾松造林区提出了种子调拨意见,明确了我国马尾松的优良种源区。 Sixty-four Pinus massoniana provenances from four provenance provenances of Pinus massoniana were studied for growth and development. Preliminary find out the variation of masson pine in Henan. Through principal component analysis and cluster analysis, the population of the tested provenances was divided into three geographical belts and six major populations. With the method of comprehensive evaluation, 14 excellent provenances suitable for growing in Henan were selected. The tree height, diameter and volume of 6-year-old trees were 18.6%, 17.1% and 58.4% larger than the control provenances in this province, respectively. At the same time, we proposed the seed allocation for Masson pine plantation in Henan Province, and made clear the good provenance area of ​​masson pine in China.