小麦品种丰产性和稳产性的非参数分析

Nonparametric Analysis of Productivity and Stability of Wheat Variety

为给小麦区试资料分析提供更合理、更全面的评价方法，采用非参数统计分析法，对2004-2005年国家黄淮海南片小麦区试品种的丰产性和稳产性进行了分析。结果表明，丰产性和稳产性均好的小麦品种有连9791、豫农035和周麦18，与品种在生产上的实际表现相一致。说明非参数统计法具有分析简单、直观、实用的特点，适合于评价区试资料的品种表现。

The productivity and stability of winter wheat Varieties in 2004-2005 south trials of Huang-Huai region were studied by means of nonparametric statistics analysis. The result showed that Lian 9791, Yunong 035 and Zhoumai 18 had good productivity and stability among the tested cultivars. The method of nonparametric statistics is simple,direct, practical, and suitable to evaluate new cultivars in regional trials.