逆境系指植物生存与生长不利的各种环境因素的总称。逆境对植物的作用力称为胁迫,植物受逆境胁迫而产生的变化,称为胁变(或称反应)。如果胁迫在植物能忍受的范围内,植物的胁变是弹性的,也就是说,在逆境除去以后,有机体能恢复到原来的状态,植物的胁变又是可逆的,由于逆境,有机体发生变形或以一定方式改变。如果逆境太严重了,就造成有机体无法挽救的损毁和 Adversity refers to the general term for various environmental factors that adversely affect the survival and growth of plants. Adversity on the role of plants called stress, plant stress changes under stress, known as the threat (or reaction). If the stress is within the tolerable range of the plant, the plant’s threading is elastic, that is, after the adversity is removed, the organism can be restored to its original state, and the plant’s threading is reversible. Due to the adversity, the organism is deformed Or change in some way. If the adversity is too serious, it will cause irreparable damage to the organism