对10个不同耐涝性大豆品种采用双层套盆法进行淹水胁迫处理7 d,对比不同品种的死苗率差异,研究了淹水胁迫对大豆不定根数、根瘤数及叶部生理指标的影响。结果表明,与不耐涝的品种相比,耐涝品种死亡率低、不定根数量多,通气组织发达,根瘤数多,叶片的相对电导率、丙二醛含量及脯氨酸含量较低,且各指标的差异达显著水平。 Ten different waterlogging-tolerant soybean cultivars were treated by two-pot method under waterlogging for seven days. The differences of seedling emergence rate among different varieties were compared. The effects of waterlogging on the number of adventitious roots, nodules and physiological indexes of leaves influences. The results showed that the waterlogging tolerant varieties had lower mortality, more adventitious roots, more aerenchyma, more nodules, lower relative conductivity, lower malondialdehyde content and proline content The differences between the indicators reached a significant level.