Journal of Anhui Agricultural Sciences

[目的]筛选出贵州省区域试验中丰产、稳产性好的品种和鉴别力高、代表性好的试点。[方法]利用AMMI模型和GGE双标图对2021—2022年贵州省7个玉米品种在7个试点的丰产性、稳定性和适应性进行分析，评价试点的鉴别力和代表性。[结果]2021年更禾玉582、毕成168、金玉631丰产性较好，金白玉6号、更禾玉582稳定性较好；六枝、贞丰、六盘水鉴别力较好，毕节、六盘水、安顺代表性较强。2022年更禾玉582、遵试2101丰产性较好，更禾玉582、金玉631、遵试2101稳定性较好；贵阳、六枝鉴别力较好，贞丰、安顺、毕节代表性较强。[结论]更禾玉582的丰产性和稳产性均较好，综合表现最好；六枝鉴别力最好，毕节代表性最强。

[Objective] In order to screen out varieties with high yield and stable yield, as well as test sites with high discrimination and good representativeness in regional trials in Guizhou Province.[Method] The AMMI model and GGE biplot were used to analyze the yield, stability, and adaptability of 7 maize varieties in Guizhou Province from 2021 to 2022 in 7 test sites, and to evaluate the discriminability and representativeness of the pilot projects.[Result] In 2021, Gengheyu 582, Bicheng 168, and Jinyu 631 had higher yield, while Jinbaiyu 6 and Gengheyu 582 had better stability; test sites in Liuzhi, Zhenfeng, and Liupanshui had better discriminability, while test site in Bijie, Liupanshui, and anshun had stronger representativeness. In 2022, Gengheyu 582 and Zunshi 2101 had higher yield, while Gengheyu 582, Jinyu 631, and Zunshi 2101 had better stability; test sites in Guiyang and Liuzhi had the better discriminability, while test site in Zhenfeng, Bijie had stronger representativeness.[Conlusion] Gengheyu 582 has good yield and stability, with the best overall performance; test site in Liuzhi had the best discriminability and test site in Bijie had the strongest representativeness.