高温损伤和“温损伤”通过不同途径影响种子生命活动。高温干燥对种子细胞膜系有损害,但干燥刚结束,种子吸胀时能迅速地自我修复。在室温贮存过程中,这类种子稳定性较差,结构性和生理性损伤逐渐扩大和积累,如膜的完整性和异柠檬酸裂解酶活性下降,同时脂肪亦发生强烈的氧化和分解,终致种胚修复能力降低。“温损伤”种子虽然细胞膜在贮存中较稳定,但在干燥中内部的脂肪可能发生氧化,并在以后逐渐毒害种子,使之活力衰退。 High temperature damage and “warm damage” affect seed life activities through different ways. Drying at high temperatures can damage the seed cell membrane, but the drying is just over and the seeds self-repair quickly as they swell. During storage at room temperature, the stability of such seeds is poor, structural and physiological damage gradually expand and accumulate, such as membrane integrity and isocitrate lyase activity decline, while fat also occurs strong oxidation and decomposition, and finally To reduce embryo repair capacity. The “warm-damaged” seeds, while the cell membrane is more stable during storage, may oxidize inside the fat during drying and later gradually poison the seeds, deactivating the seeds.