山东省玉米品种区域试验基因型与环境互作效应分析

Analysis of Interaction Effects between Genotypes and Environments of Maize Varieties Regional Trial in Shandong Province

为合理评价玉米品种区域试验中新品种的丰产性、稳产性和适应性,以及试验点的鉴别力和代表性,本研究采用GGE双标图对2016年山东省玉米品种区域试验中10个品种在14个试验点的丰产性、稳产性和品种适应性进行分析,并对试验点的鉴别力和代表性做出评价。结果表明:玉米品种‘QT158’综合表现最好,泰安和长清试验点具有较好的鉴别力,莱阳试验点的代表性最强,其次是齐河试验点,为玉米种植的合理布局提供科学理论。

In order to reasonably evaluate the prolificacy,yielding dependability and adaptability of new varieties in corn regional trials,as well as the discrimination and representativeness of test sites.GGE biplot was applied for analyzing the prolificacy,yielding dependability and adaptability of 10 maize varieties distributed on 14 experimental sites of Shandong province in 2016.The discrimination and representativeness of the 14 experimental sites were also evaluated.The results showed that‘QT158’of maize variety had the best comprehensive performance.The experimental sites with best discrimination were Tai’an and Changqing test sites,while experimental site with best representativeness was Laiyang test site,followed by Qihe test site.And these results provide scientific theory for the rational layout of corn planting.