【Objective】This study aimed to analyze the adaptability of tartary buckwheat,selection of elite varieties,and evaluation of test sites,and to provide information for application of buckwheat varieties and distribution of test sites.【Method】Variance analysis and GGE biplot were conducted to analyze growing period,plant height,stem branch,nodes per plant,thousand grain weight and yield from the 8th national variety regional test.【Result】(1)Growing period,plant height,stem branch and nodes per plant in norther...