摘要
应用秩次变量nij和n′ij,非参数统计量Pi、P′i、Si和Dj描述山东省1998～1999年小麦高肥甲组区试材料的基本特征。Pi和P′i是品种Vi的丰产性指数,Si是品种的稳定指数,Dj是环境或试验的鉴别力指数。结果表明:淄麦12号是丰产性和产量稳定性均好的品种,其丰产性指数Pi和P′i均列第一位,分别为86.4%和54.5%,稳定性指数Si在比对照增产的品种中位居第一。
Rank varieties nij & n′ij for the ith variety in the jth environment, and nonparametric measures Pi, P′i, Si & Dj were introduced to describe the basic characteristics of the wheat regional trial data of Shandong province in 1998～1999. Pi & P′i were the productivity indexes of variety Vi, Si was the stability index, Dj was the differentiation index of environment or trial Lj. The results showed that:ZW-12(Zibo wheat NO.12) had the best productivity & stability, and the Pi=86.4% & P′i=54.5%. The stability index of ZW-12 was the highest of other varieties whose yields were higher than CK.
出处
《黑龙江八一农垦大学学报》
2001年第4期35-40,共6页
journal of heilongjiang bayi agricultural university
基金
山东省农业良种产业化开发工程项目资助(鲁科农99-198-01)
