Variations of the content of nutritional components was higher than that of seed nucleus'characteristics.
营养成分指标的变异程度普遍高于种核特征指标的变异程度。
参考来源 - 湖北省大别山区银杏古树种核变异的研究
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Seed nucleus
abstract:A seed nucleus is an isotope that is the starting point for any of a variety of fusion chain reactions. The mix of nuclei produced at the conclusion of the chain reaction generally depends strongly on the relative availability of the seed nucleus or nuclei and the component being fused--whether neutrons as in the r-process and s-process or protons as in the rp-process.