以豌豆幼苗为研究对象，采用盆栽人工控水技术，模拟了正常持水量、中度干旱

Pea seedlings of, human pot industrial water technology, simulated normal water-holding capacity, moderate and arid three conditions of severe, active oxygen metabolism of pea seedlings under drought stress was investigated by normal water holding capacity , membrane permeability, and malondialdehyde, CAT and POD content of pea seedlings, moderate, and severe drought stress, the effect of drought stress on active oxygen metabolism of pea seedlings. The results show that: under moderate drought stress is increased as compared with the control MDA content of 48.89%, CAT and POD increased by 70.12%, 75.19%, membrane permeability increases 50.65%; and under severe drought stress MDA content compared to the control increased by 220.09%, CAT and POD increased by 127.12%, 133.07%, increased membrane permeability 141.86%. As described enhancement of drought stress, by increasing the degree of oxidation of lipid membrane, membrane lipid peroxidation malondialdehyde content increases, membrane permeability increases, pea CAT enzyme system protection and POD increased active oxygen metabolism strengthen.

以豌豆幼苗为研究对象，采用盆栽人工控水技术，模拟了正常持水量、中度干旱和重度干旱三种条件，对干旱胁迫下豌豆幼苗的活性氧代谢情况进行了研究，通过对正常持水量、中度和重度干旱胁迫下豌豆幼苗丙二醛、质膜透性、以及CAT和POD含量的测定，分析了干旱胁迫对豌豆幼苗活性氧代谢的影响。实验结果表明：中度干旱胁迫下与对照相比丙二醛含量增加了48.89%，CAT和POD活性分别增加了70.12%、75.19%，质膜透性增大了50.65%；重度干旱胁迫下与对照相比丙二醛含量增加了220.09%，CAT和POD 活性分别增加了127.12%、133.07%，质膜透性增大了141.86%。说明随着干旱胁迫程度的增强，膜脂过氧化程度增大，膜脂过氧化产物丙二醛的含量上升，质膜透性增大，豌豆保护酶系统CAT和POD活性升高，活性氧代谢加强。

Taking the pea seedling as the research object, three conditions of normal water holding capacity, moderate drought and severe drought were simulated by using the potted artificial water control technology. The active oxygen metabolism of pea seedling under drought stress was studied. Through the determination of malondialdehyde, plasma membrane permeability, cat and pod content of pea seedling under normal water holding capacity, moderate and severe drought stress, the dry state of pea seedling was analyzed Effects of drought stress on active oxygen metabolism in pea seedlings. The results showed that the content of MDA increased 48.89%, the activity of cat and pod increased 70.12%, 75.19% and the permeability of plasma membrane increased 50.65% under moderate drought stress, the content of MDA increased 220.09%, the activity of cat and pod increased 127.12%, 133.07% and the permeability of plasma membrane increased 141.86% under severe drought stress. The results showed that with the increase of drought stress, the degree of membrane lipid peroxidation increased, the content of malondialdehyde, the permeability of plasma membrane increased, the activities of cat and pod in pea protective enzyme system increased, and the metabolism of active oxygen increased.<br>