CAJ | 학술논문

为了探讨铅铬单一及复合污染胁迫对小麦叶绿素的影响，用不同质量浓度的铅铬溶液处理小麦苗，用紫外分光光度计测定铅铬处理后1、3、5、7d小麦苗叶绿素含量在小麦苗中的变化.结果表明，铅铬单一及复合污染胁迫均能降低小麦苗叶绿素在小麦苗中的含量.处理后1 d，除200 mg/L Pb+100 mg/L Cr处理组外，其余各处理组小麦苗叶绿素含量较对照显著降低；处理后3 d，除100 mg/L Pb+50 mg/L Cr处理组小麦苗叶绿素含量较对照降低53.1%外，其余各处理组小麦苗叶绿素含量与对照相比无显著差异.随着处理后时间的继续延长，小麦苗叶绿素含量又恢复至不受影响的正常状态.本研究为铅铬污染胁迫的监测提供了理论依据.
위료탐토연락단일급복합오염협박대소맥협록소적영향，용불동질량농도적연락용액처리소맥묘，용자외분광광도계측정연락처리후1、3、5、7d소맥묘협록소함량재소맥묘중적변화.결과표명，연락단일급복합오염협박균능강저소맥묘협록소재소맥묘중적함량.처리후1 d，제200 mg/L Pb+100 mg/L Cr처리조외，기여각처리조소맥묘협록소함량교대조현저강저；처리후3 d，제100 mg/L Pb+50 mg/L Cr처리조소맥묘협록소함량교대조강저53.1%외，기여각처리조소맥묘협록소함량여대조상비무현저차이.수착처리후시간적계속연장，소맥묘협록소함량우회복지불수영향적정상상태.본연구위연락오염협박적감측제공료이론의거.
In order to explore the effects of lead and chromium multiple stresses on wheat chlorophyll ,the wheat seedlings were treated with different concentrations of lead and chromium solutions ,and the chlorophyll content changes in the wheat seedlings were determined by ultraviolet spectrophotometer at 1,3,5,7 d after treatment. The results showed that wheat seedlings under lead and chromium multiple stresses exhibited a significant decrease in the chlorophyll content. Except 200 mg/L Pb+100 mg/L Cr treatment group,the wheat seedlings treated with lead and chromium showed significantly lower chlorophyll content than the untreated control at 1 d. The chlorophyll content decreased by 53.1%at 3 d after treatment with 100 mg/L Pb+50 mg/L Cr compared to the untreated control and no significant change was observed for chlorophyll content in the other treatment groups at 3 d after treatment. With the time prolonged,during 3 to 5 d after treatment,the chlorophyll content finally returned to normal conditions. This study provided the theoretical basis for the monitor of lead and chromium pollution stress.