棉花品种区试资料的非参数度量  

Non-parameter measure on cotton variety region test datum

作　　者：杨中旭 李秋芝 高东玉 孙广勤 李虎申 丁述举[3] 张徽 侯桂明 

机构地区：[1]山东省聊城市农科所,山东聊城252000 [2]聊城市农业局,山东聊城252000 [3]聊城大学农学院,山东聊城252000

出　　处：《江西棉花》2004年第2期16-19,共4页Jiangxi Cottons

摘　　要：应用秩次变量nij和nij′,非参数统计量Pi、Pi′、Si和Dj描述棉花品种区域试验资料的基本特征。Pi和Pi′是品种Vi的丰产性指数,分别表示产量低于和显著低于vi的品种的出现率;Si是品种的稳定性指数,表示vi在各种环境中的产量秩次的变异。Dj是环境或试验的鉴别力指数,表示环境Lj中品种间的显著性差数的出现率。本文以一个10个品种10个地点的棉花品种区试实例说明了上述非参数统计方法,该方法可供我国作物区试和农技推广工作者备择应用。Application variable Nij and Nij1. Nonparametric statistics Pi Pi1Si and Dj fundamental feature of describing region test datum . Pi and Pi1 are the yielding index of varieties, express the emergence rate that yielding is lower and remark lower than the varieties V. The Si is the stability index of varieties , express the variation of Vi in the different environment. The Dj is environment either the test discrimination index. Expressed emergence rate of variety significance among the environment L. This article explained statistics method with the example of 10 varieties and 10 sites.

关 键 词：棉花 品种区域试验 非参数度量 环境鉴别力指数 丰产性指数 稳定性指数 

分 类 号：S562[农业科学—作物学]