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本文报道应用数理统计方法,分析了檫树不同种源在苗期的地上生长、地下生长和干物质积累的地理变异,初步明确一些规律性的变化。根据分析,檫树不同种源在苗期生长和抗寒性方面有显著差异,其中地上部生长和抗寒性呈地理渐变群的变异型式,地下部生长呈随机地理变异的型式。种源之间在苗木干物质积累的量上没有明显差异,但干物质在茎干、枝条和根系上的分配比例不一样。本省种源的苗木对本地条件最适应,但生长较慢。
This paper reports the use of mathematical statistics method to analyze the different provenances of Castanopsis farms in the seedling growth, underground growth and dry matter accumulation of geographical variation, initially clear some regular changes. According to the analysis, there are significant differences in seedling growth and cold hardiness among different provenances of Castanopsis sclerophylla, in which the growth and cold resistance of aboveground part show the variation pattern of the geographically-changing group, while the growth of underground part shows the pattern of random geographical variation. There was no significant difference in the amount of dry matter accumulation among provenances, but the proportion of dry matter in stems, shoots and roots was not the same. Seedlings planted in this province are best adapted to local conditions but grow more slowly.