GGE双标图法是研究基因型(G)及基因型与环境互作(GE)的统计分析工具。采用GGE双标图对2017 — 2018年马铃薯多点试验中17个马铃薯参试高代品系在7个试点的产量进行分析。结果表明，在供试的17个品种(系)中，产量以0732-12最高，稳定性以0812-34、0732-12、0732-15较高，0708-12较差。7个试点中，渭源县会川镇试点的区分力最强。代表性以渭源县会川镇、通渭县华家岭、安定区青岚乡等试点表现较强，临洮县连儿湾、通渭县石川乡、岷县禾驮镇等试点较弱。
GGE-biplot is a new statistical analysis tool in the research of genes(G) and interaction of genes and environment(GE). In 2017-2018，GGE-biplot was used for yield analysis in 17 potato varieties at 7 testing-sites in Gansu Province. The results showed that the genotype of 0732-12 has the highest yielding in the 17 varieties (lines)，0812-34，0732-12 and 0732-15 have higher stability in lines while the genotype G1 has poor stability performance. In the 7 test sites, the site of Huichuan town has the strongest discrimination ability. In terms of representativeness， Huichuan Town site of Weiyuan County, Huajialing site of Tongwei County, Qinglan Township site of Anding District and other site performance are strong, Lian'er Wan site of Lintao County, Shichuan Township site of Tongwei County, Hetuo Town site of Minxian County are weak.