不同地域杉木不稔种子流行分析及其应用

Analysis of the Epidemec of the Chinese Fir Sterile Seed in the Zones and its Application on Choice of the Habitat of the Seed Garden

方差分析结果表明不同带间杉木涩籽、瘪籽的流行率都存在极其显著差异,不同产区的杉木涩籽、瘪籽的流行率都有一定的差异,笔者认为中带为杉木种子园适宜的地域,而中带里的中心产区又更适宜于建造杉木种子园。

This paper deals with the epidemic of the sterile seed with tannin-like substanec and the empty seed in the Chinese-fir zones by useing variance analysis. The results show that there were very significant differences of the epidemic rates of both the sterile seed with tannia-like substance and the empty seed among the zones, andther-ewerecertain differences of both the epidemic rates of the sterile seed and the empty seed between the subregions in the central zone. It is believed that the central zone is the suitable one for establishing the Chinese-fir seed garden, and the optimum subr-egin is more suitable to establish the seed garden in.