Comprehensive Evaluation of Regional Trials of Rice in Henan Province Based on AMMI Model and GGE Biplot

YANG Yang; LI Yadong; FU Jing; ZHOU Chengjie; GUO Junhong; LIU Haijing

doi:10.15933/j.cnki.1004-3268.2026.02.002

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.