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对云南、贵州、湖北等10～11个秃杉种源,57个单株子代的两次苗期试验研究表明,种源群体间和群体内(单株子代间)性状均存在明显的地理变异。变异与产地纬度、经度、海拔高度的线性关系不密切,但有经向相关强于纬向相关的趋势。产地日照和温度是产生变异的主要作用因子。经度偏东的贵州种源比偏西的云南种源种子质量好,生长最高,生物最大,成苗数多,封顶早,寒害轻,适应性强,湖北利用种源适应性优于云南种源,生长与其相近。这些地理变异为秃杉选择育种提供了依据和基础。
Two seedling experiments on seed progenies of 10 to 11 Taiwania flousiana in Yunnan, Guizhou and Hubei Provinces showed that there were significant differences in seedling population and in the population Geographical variation. The linear relationship between variation and latitude, longitude and altitude in the place of origin is not close, but there is a strong correlation between warp and the latitude. The origin of sunshine and temperature is the main factor of variation. Guizhou provenances with east longitude are better than those with west provenance in Yunnan, and have the highest growth, the largest biomass, the number of mature seedlings, the early capping, the light chilling injury and adaptability. The adaptability of provenances in Hubei is better than that in Yunnan , Growth and its similar. These geographical variations provide the basis and basis for the selection breeding of Taiwania flousiana.