结瘤和不结瘤大豆同位基因系(或近同位基因系)在研究大豆共生固氮能力,估算其共生固氮量以及探讨光合与固氮的关系,大豆对施肥的反应能力等方面有重要意义。还有人设想选育不结瘤的优良大豆,加强施肥措施可能是进一步提高大豆产量的新途径。因此不结瘤大豆及其结瘤同位系是当今世界深入研究大豆不可缺少的重要种质资源。 Nodulation and non-nodulation soybean isogenic lines (or near-isogenic lines) are of great importance in studying symbiotic nitrogen fixation of soybean, estimating its symbiotic nitrogen fixation, and exploring the relationship between photosynthesis and nitrogen fixation, and the ability of soybean to respond to fertilization. Others have envisioned breeding elite soybean that is non-nodulated. Strengthening fertilization measures may be a new way to further increase soybean yield. Therefore, non-nodulated soybeans and their nodules are important germplasm resources indispensable to the in-depth study of soybean in today’s world.