北疆冬小麦新品系丰产性和稳产性的非参数分析

Nonparametric Analysis of Productivity and Stability of New Winter Wheat Variety of North Xinjiang

【目的】为小麦区域试验资料分析提供科学合理、全面的评价方法，为生产上大面积推广的优良小麦新品种提供参考。【方法】采用非参数统计分析方法，对2006-2007年度新疆冬小麦北疆组区域试验的参试品种的丰产性和稳产性进行了分析。【结果】丰产性和稳产性均较好的小麦品种是04／2127，其丰产性指数Pi、Pi＇、分别为82．9％、37．1％，优于对照新冬18号（V14）的64．3％、12．9％和新冬22号（V15）的48．6％、8．9％；其稳定性指数在备品种的产量稳定性同μ总体的情况下优于对照，与生产上品种实际表现相一致。【结论】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。

[ Objective]In order to provide the more reasonable and more overall evaluation method for the data analysis of the wheat Regional trials, and give reference to new species of good wheat which is worth being popularized in large area of production. [ Method] The productivity and stability of winter wheat varieties from regional test in northern Xinjiang in 2006 - 2007 were studied by means of nonparametric statistics analysis. [Result] The result showed that 04/2127 had better productivity and stability among the tested cuhivars. It＇s productivity index （ 82.9%）, （ 37. 1% ） are better than that of the CK Xindong 18 （64.3.%, 12.9% ） and Xindong22 （48.6 %, 8.9 % ）. [ Conclusion] The method of nonparametric statistics is simple, direct, practical, and suitable to evaluate new cuhivars in regional trials.