As soon as the drying temperature was higher than seed can endure, toxic metabolite such as MDA increased as enzymes were destroyed, which lead to the loss of seed vitality.

• 随着胁迫时间延长，种子内部酶促保卫系统受到破坏，丙二醛(MDA)等有毒代谢物质含量迅速增加，最终使种子失去生命力。