CAJ | 학술논문

为给稀土元素农用拓展及环境污染防治提供依据，以永良四号小麦幼苗为材料，采用模拟盐害的方法，探索了盐胁迫下铈的不同施用方式产生的生态效应。结果表明：随着盐浓度的增加，小麦幼苗MDA 含量明显上升，POD 活性先上升后下降。盐胁迫前24 h 用30 mg/L 铈采用叶面施肥、根部施肥的方式处理后，MDA 的积累和相对电导率均显著下降，POD 活性在各个时间段也都有明显上升。稀土铈的不同施用方式都能诱导小麦幼苗对盐胁迫产生抗性，减轻盐胁迫对小麦幼苗的伤害，叶面喷施效果更显著。
위급희토원소농용탁전급배경오염방치제공의거，이영량사호소맥유묘위재료，채용모의염해적방법，탐색료염협박하시적불동시용방식산생적생태효응。결과표명：수착염농도적증가，소맥유묘MDA 함량명현상승，POD 활성선상승후하강。염협박전24 h 용30 mg/L 시채용협면시비、근부시비적방식처리후，MDA 적적루화상대전도솔균현저하강，POD 활성재각개시간단야도유명현상승。희토시적불동시용방식도능유도소맥유묘대염협박산생항성，감경염협박대소맥유묘적상해，협면분시효과경현저。
The effect of different Ce3 + application patterns on antioxidant ability of wheat seedlings under salt stress was studied by the simulation method to provide the scientific basis for farm-oriented utilization of rare earth elements and control of environmental pollution.The results showed that MDA content of wheat seedlings rises significantly but the POD activity presents a first rising and then decline trend with increase of salt concentration.The MDA accumulation speed and relative electrical conductivity of wheat seedlings sprayed with 30mg/L Ce3 + by different spraying patterns at 24h before salt stress decrease significantly and the POD activity rises at different time periods obviously.Two Ce3 + application patterns both can induce the resistance of wheat seedlings to salt stress to alleviate damage degree of wheat seedlings caused by salt environment but the effect of the foliage spray pattern is better than the root application.