Abstract: To effectively evaluate the regional trials of rice in Henan Province and identify new rice varieties with high yield，stable yield，and strong adaptability as well as suitable trial sites，the AMMI model and GGE biplot were used to conduct a comprehensive analysis of the yield productivity，yield stability，and adaptability of the tested rice varieties participating in the 2022—2023 Henan Provincial Regional Rice Trials（13 varieties in 2022 and 14 varieties in 2023）in 10 trial sites. Additionally，the discriminative ability and representativeness of different trial sites were compared to screen out ideal varieties and trial sites. The results demonstrated that rice yield was significantly influenced by genotype（G），environment（E），and their interaction（G×E）.The AMMI model explained 79.87% and 87.38% of the G×E interaction effect in two years.AMMI model analysis revealed that among the 2022 tested varieties，Yuandao 26，Zhengdao 25，and Yudao 27 exhibited better yield performance and stability；while in 2023，Bianjing 5，Yudao 27，and Zhengdao 27 showed better yield performance and stability.Yuanyang site in Xinxiang City，Tongbai site in Nanyang City，and Xiangfu site in Kaifegn City had better discriminative ability in 2022，and Xiangfu site in Kaifegn City，Fanxian site in Puyang City，Shihe site in Xinyang City，and Yuanyang site in Xinxiang City demonstrated better discriminative ability in 2023.GGE biplot analysis revealed that the varieties with better yield productivity and stability in 2022 and 2023 were Yuandao 26，Zhengdao 25，Yudao 27 and Bianjing 5，Zhengdao 27，Yudao 28，respectively.The varieties with the widest adaptability were Xinfeng 26 and Puzajing 1，while the trial sites with better discriminative ability and representativeness were Xiangfu site in Kaifegn City，Jinshui site in Zhengzhou City，and Yuanyang site in Xinxiang City. In conclusion，the rice varieties with better yield performance and stability are Yuandao 26，Zhengdao 25，Yudao 27，Bianjing 5，and Zhengdao 27；the trial sites with stronger discriminative ability and representativeness are Xiangfu site in Kaifegn City and Yuanyang site in Xinxiang City.

Key words: Rice, AMMI model, GGE biplot, Regional trial, Genotype?environment interaction

摘要： 为有效评价河南省水稻区域试验，评估出兼具高产、稳产、强适应性的水稻新品种及适宜的试点，利用AMMI模型和GGE双标图对2022—2023年河南省水稻区域试验参试品种（2022年13个参试品种，2023年14个参试品种）在10个试验点的丰产性、稳产性、适应性进行综合分析，比较不同试点的区分力和代表性，筛选出适宜种植品种和理想试点。结果表明，2022—2023年，参试水稻品种的产量受基因型、环境以及两者互作极显著影响。2 a，AMMI模型分别解释了79.87%和87.38%的基因型与环境的互作效应。AMMI模型分析发现，2022年参试品种原稻26、郑稻25、豫稻27丰产性、稳产性较好，2023年参试品种汴粳5号、豫稻27、郑稻27丰产性、稳产性较好；2022年试点新乡市原阳县、南阳市桐柏县、开封市祥符区的区分力较强，2023年试点开封市祥符区、濮阳市范县、信阳市浉河区、新乡市原阳县的区分力较强。GGE双标图分析发现，2022年和2023年丰产性和稳产性较好的品种分别是原稻26、郑稻25、豫稻27和汴粳5号、郑稻27、豫稻28，适应性最广的品种分别是新丰26和濮杂粳1号，区分力和代表性较好的试点是开封市祥符区、郑州市金水区、新乡市原阳县。综上，丰产性和稳产性较好的品种是原稻26、郑稻25、豫稻27、汴粳5号、郑稻27，区分力和代表性较强的试点是开封市祥符区、新乡市原阳县。

关键词: 水稻, AMMI模型, GGE双标图, 区域试验, 基因型与环境互作