用非参数统计量分析了 1 998～ 1 999年度湖北省小麦良种区域试验各品种 (系 )的丰产性、稳定性、适应性和试点的鉴别力。结果表明 :非参数统计分析简单、明确、效果好 ,尤其试点鉴别力指数 (Di)对试点的选取与分布具有重要指导意义 ;在参试品种中 ,鄂麦 1 2、S0 4 8、D40 2丰产性、稳定性、适应性较好 ,在试点选取与分布上 ,应增加湖北省北部地区试点数 The non-parametric statistics were used to analyze the yield, stability, adaptability and discriminating power of various varieties (lines) from 1998 to 1999 in Hubei province. The results show that the non-parametric statistical analysis is simple, clear and effective. Especially, the pilot discriminant index (Di) has important guiding significance for the selection and distribution of the pilot. Among the tested varieties, Emai 1 2, S0 4 8, D40 2 High yield, stability, good adaptability, in the pilot selection and distribution, should increase the number of pilot in northern Hubei Province