【摘要】 为分析和比较栽培、野生大豆及其杂交后代对盐渍土壤的生长适应性和改良效果，以栽培大豆（新27、南农8831和Lee68）、野生大豆（N23227）及栽培×野生大豆杂交后代（3060）为对象，未种植大豆空地为对照（CK），测定不同大豆材料营养生长期的叶片生理指标，以及种植大豆60 d和120 d时的土壤理化性质和微生物群落结构变化。结果表明：盐渍土壤条件下，植物叶片的光保护和抗氧化能力以杂交后代材料3060最强，其次是Lee68和N23227，优于新27和南农8831。与对照土壤相比，3060在种植60 d时显著降低土壤电导率（P<0.05），与其他4种大豆材料相比，3060的氮固定能力，以及对土壤的综合改良效果最优，其次是N23227。此外，5种大豆材料均可维持土壤放线菌门丰度，种植N23227大豆120 d与60 d相比，厚壁菌门丰度显著增加（P<0.05）。杂交后代3060和野生大豆N23227能够在适应盐渍土壤的情况下，改善土壤理化性质和细菌群落结构，适合在盐渍土壤种植。更多还原

【Abstract】 This study aims to assess the differential adaptability and soil improvement effects of cultivated, wild soybeans,and their hybrid offspring grown in saline soil conditions,using the cultivated soybeans(Xin27,Nannong8831,and Lee68),wild soybean(N23227),and their hybrid(3060) as the materials,unplanted soybean open space as control(CK),this work assessed leaf physiological parameters at the vegetative growth stage,along with soil physicochemical properties and microbial community structure at 60 and 120 days after planting. Under saline soil cultivation,the photoprotective and antioxidant capabilities of plant leaves were the strongest in the hybrid progeny material 3060,followed by Lee68 and N23227,which were superior to Xin 27 and Nannong 8831. Compared with the control soil,3060 significantly reduced soil electrical conductivity at 60 days of planting(P<0. 05). Compared with the other four soybean materials,3060 had the best nitrogen fixation ability and comprehensive improvement effect on soil,followed by N23227. In addition,the five soybean materials could maintain the abundance of soil actinomycetes,and the abundance of Firmicutes increased significantly(P<0. 05) after planting N23227 soybean for 120 d compared with 60 d. The hybrid progeny 3060 and wild soybean N23227 can improve the soil physical and chemical properties and bacterial community structure under the condition of adapting to saline soil,which is suitable for planting in saline soil.更多还原