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利用９个生长较好的马尾松种源区域试验点测定材料，建立２４个种源在不同纬度上９年生树高的Ｇａｕｓｓｉａｎ反应函数，发现３个反应函数参数（模式纬度、内稳定性参数和尺度参数）具有显著的地理变异模式。北部种源大多在其原产地以南３～６个纬度的区域内生长表现最佳，而南部种源的原产地大致也是其生长的最适地。一般来讲，南部种源较北部种源具有较高的内稳定性和遗传可塑性，适宜栽植的区域较广。根据优良种源在不同纬度上的生长优势，并考虑到气候等安全因素，为几个马尾松优良种源确定了适合的推广栽植范围。
Using nine well-tested sites of Pinus massoniana seed provenance, Gaussian response functions of 24 provenances of 9-year-old trees at different provenances were established. It was found that three reaction function parameters (mode latitude, internal stability parameter and Scale parameters) has a significant pattern of geographical variation. Most of the northern provenances grew best in the region of 3 to 6 latitudes south of their place of origin, while the provenance of southern provenances was generally the most suitable for their growth. In general, southern provenances have higher internal stability and genetic plasticity than the northern provenances, and suitable for planting a wider area. According to the growth advantages of good provenances at different latitudes, and taking into account the safety factors such as climate, the suitable range of popularization and planting was determined for several provenances of masson pine.