通过对云南省１４个地区（州）７２个县板栗产区的调查与种质收集、观察和测定，基本摸清了全省板栗的分布和种质资源，发现云南省板栗种质多样性十分丰富，坚果总体品质优良。并从生物学和生态地理学上分析该省板栗多样性形成的基础，认为云南省板栗品质兼有暖温带地区板栗的甜糯、美观的色泽以及亚热带地区板栗含水量较高的特点，是我国亚热带板栗分布区的一个独特产区。在调查分析基础上初选出了３０个优良单株。

Based on the investigation of distribution and resources of Chinese chestnut germplasm in Yunnan Province, it is found that there is rich in diversity of chestnut germplasm, and the nut quality is excellent generally. By analysing the formation of the chestnut diversity biologically and eco-geographically, it showed that the chestnut germplasm in Yunnan has the nut properties combined with both characters in warm temperate zone, where the nuts are smaller with lustre and pretty color, sweet taste and glutinous starch, and in subtropical regions. where the nut water content is high. Hance, the authors considered that it is a special producing region of chestnut in China, and it will be a bright prospect to develop and utilize those resources. As a result of this reseach, 30 excellent seedling individuals have been selected out.