本研究选用适合黑龙江省高纬度地区种植的31个大豆品种(系),按照试验要求进行设计、项目调查、室内考种,运用差异性、灰色关联度、相关分析的方法进行数据分析整理。得出生育前期、单株粒重、每荚粒数、单株粒数是影响该地区大豆产量的主要农艺性状,同时在选择单株时应兼顾茎粗、株高、分枝数的影响。 In this study, 31 soybean cultivars (lines) suitable for planting in high latitude area of ​​Heilongjiang Province were selected for data analysis and arrangement according to the test requirements of design, project investigation, indoor test, using the difference, gray correlation and correlation analysis methods. At the early stage of fertility, the grain weight per plant, the number of pods per plant and the number of grains per plant are the main agronomic traits affecting soybean yield in this region. Meanwhile, the effects of stem diameter, plant height and branch number should be taken into account when selecting individual plants.