通过对黑龙江省四个地区,三个时期,17个有代表性大豆品种的比较研究,认为黑龙江省大豆品种的产量提高最显著一点是由于秆强度的提高。在此基础上,松哈地区经历了主茎节数、每荚粒数增多、分枝数减少——“主茎型”途径;合江、绥化地区经历了百粒重、每荚粒数的提高;嫩江地区则是主茎节数、单株荚数的提高,也近于主茎型途径。 主要农艺性状相关分析表明,百粒重、主茎节数、每节荚数与产量相关较为密切,因此,可考虑做为高产育种的选择依据。 Through the comparative study of four representative soybean varieties in four regions, three periods and 17 representative Heilongjiang Provinces, it is concluded that the yield increase of soybean varieties in Heilongjiang Province is the most significant due to the improvement of stalk strength. On this basis, the Songha region experienced the number of main stems, the number of per pod grains increased, the number of branches decreased - “main stem” approach; Hejiang and Suihua experienced 100-grain weight per pod Increase; Nenjiang area is the main stem section number, pods per plant increased, also near the main stem-type pathway. Correlation analysis of main agronomic traits showed that 100-grain weight, number of main stems and pods per section were closely related to yield, therefore, it could be considered as the basis for selection of high-yielding breeding.