Nongda 15440 can keep the higher dry substances accumulation at drought stress and had stronger resistant ability to drought stress, but Nongda 15404, 15416 had more sensitivity to drought stress.

• 在干旱胁迫下，15440仍能保持相对较高的干物质积累量，对干旱胁迫有较强的抵抗能力，而农大15404、15416对干旱胁迫反应更为敏感。