4种药剂对黄瓜幼苗2,4-D丁酯药害的缓解作用

Alleviating Effects of Four Pesticides on the Damage of 2,4-D Butyl Ester in Cucumber Seedlings

摘要:

试验以黄瓜幼苗为试材，2,4-D丁酯药害处理前5 d和处理后1 d，分别喷施4种药剂，比较各处理的缓解效果。结果表明：2,4-D丁酯药害前喷施4种药剂，在不同程度上降低黄瓜幼苗的丙二醛含量和过氧化物酶活性，并且黄瓜幼苗的株高、叶绿素含量、根系活力均接近对照，其中碧护在黄瓜幼苗2,4-D丁酯药害前施用的效果最好。因此，黄瓜幼苗2,4-D丁酯药害前喷施碧护进行预防，可有效降低2,4-D丁酯对黄瓜幼苗的药害程度。

Abstract:

Cucumber seedlings were used in the experiment. 5 d before 2,4-D butyl treatment and 1 d after 2,4-D butyl treatment, four kinds of chemicals were sprayed respectively to compare the relieving effect of each treatment.The results showed that the content of malondialdehyde and the activity of peroxidase in cucumber seedlings were decreased by spraying 4 kinds of 2,4-D-butyl before the injury, and the plant height, chlorophyll content and root activity of cucumber seedlings were close to the control, among which the effect of applying 2,4-D butyl before the injury was the best. Therefore, before the 2,4-D butyl injury of cucumber seedlings, the application of green protection can reduce the degree of 2,4-D butyl injury to cucumber seedlings.