抗旱性是大豆获得高产稳产的重要形状,抗旱性强的大豆品种较抗旱性弱的大豆品种,一般植株高大、分枝数多、主茎节数多、结实部位多、具有发达的根系、具有无限结荚习性、叶型大、籽粒小。干旱胁迫条件下,抗旱性强的大豆品种体内脯氨酸含量显著提高、保护酶活性显著增大。 Drought tolerance is an important shape for soybean to obtain high and stable yield. Soybean varieties with strong drought resistance are more resistant to drought than those with weaker drought resistance. Generally, the plants are tall, have many branches, have more main stems, more nodes and developed root systems Unlimited pod habit, leaf type, small grains. Under drought stress, the proline content in soybean cultivars with high drought resistance increased significantly and the activity of protective enzymes increased significantly.