湖北农业科学 ›› 2023, Vol. 62 ›› Issue (4): 77-80.doi: 10.14088/j.cnki.issn0439-8114.2023.04.013

• 植物保护 • 上一篇    下一篇

28-高芸苔素内酯对韭菜中溴氰菊酯残留降解的影响

廖灿1, 阮翔1, 代桂全1, 邢高山1, 王美美1, 殷佑斗2, 李俊凯1   

  1. 1.长江大学农学院,湖北 荆州 434025;
    2.江西威敌生物科技有限公司,南昌 330077
  • 收稿日期:2023-02-06 出版日期:2023-04-25 发布日期:2023-05-12
  • 通讯作者: 李俊凯(1969-),男,湖北荆门人,教授,博士,主要从事新农药研究与开发工作,(电子信箱)junkaili@yangtzeu.edu.cn。
  • 作者简介:廖 灿(1994-),男,湖南岳阳人,在读硕士研究生,研究方向为农药残留分析与环境毒理,(电话)18360863066(电子信箱)609182458@qq.com。
  • 基金资助:
    国家自然科学基金项目(31672069)

The effects of 28-high brassinolide on degradation of deltamethrin residue in leek

LIAO Can1, RUAN Xiang1, DAI Gui-quan1, XING Gao-shan1, WANG Mei-mei1, YIN You-dou2, LI Jun-kai1   

  1. 1. College of Agriculture, Yangtze University, Jingzhou 434025, Hubei, China;
    2. Jiangxi Windeal Biological Technology Co., Ltd., Nanchang 330077, China
  • Received:2023-02-06 Online:2023-04-25 Published:2023-05-12

摘要: 为探索28-高芸苔素内酯对韭菜中溴氰菊酯残留降解的影响,以韭菜(Allium tuberosum)为试验材料,0.01% 28-高芸苔素内酯可溶液剂为供试药剂,0.04% 24-表芸苔素内酯可溶液剂为对照药剂,清水为对照,在溴氰菊酯灌根前1 d对韭菜进行喷雾处理。分别在20 mg/L溴氰菊酯药液灌根处理后0、1、2、3、5、8、12、16 d进行取样,采用改进的QuEChERS方法对韭菜样品进行前处理,用气相色谱质谱联用仪检测韭菜中溴氰菊酯残留量。结果表明,溴氰菊酯灌根后1 d,稀释1 000倍的0.01% 28-高芸苔素内酯处理的韭菜中溴氰菊酯残留量最低,比清水对照降低了19.73%;喷施1次稀释1 000倍的0.01% 28-高芸苔素内酯、喷施2次稀释1 000倍的0.01% 28-高芸苔素内酯和清水对照的韭菜中溴氰菊酯残留量均在灌根后1 d达到最大值,分别为0.046 0、0.058 3、0.057 3 mg/kg;用稀释500、1 000、2 000倍的0.01% 28-高芸苔素内酯分别处理韭菜,溴氰菊酯灌根后1 d,稀释1 000倍的0.01% 28-高芸苔素内酯处理的韭菜中溴氰菊酯残留量最低,显著低于清水对照和稀释2 000倍的0.01% 28-高芸苔素内酯处理,与稀释500倍的0.01% 28-高芸苔素内酯处理之间差异不显著。

关键词: 韭菜(Allium tuberosum), 28-高芸苔素内酯, 溴氰菊酯, 农药残留, 降解

Abstract: In order to explore the effects of 28-high brassinolide on the degradation of deltamethrin in leeks(Allium tuberosum), with leeks as the test material, 0.01% high-brassinolide solvable agent was used as the test agent, 0.04% 24-epbrassinolide solvable agent was used as the control agent, and water was taken as the control to spray on the leeks 1 day before deltamethrin root irrigation. The leek samples were taken at 0, 1, 2, 3, 5, 8, 12, 16 d after root irrigation of 20 mg/L deltamethrin, respectively. The modified QuEChERS method was used to pretreat the leek samples, and gas chromatography-mass spectrometry was used to detect deltamethrin residue in leek samples. The results showed that one day after deltamethrin root irrigation, the residue of deltamethrin in leeks treated with 0.01% 28-high brassinolide diluted 1 000 times was the lowest, which was 19.73% lower than that in water control. The residues of deltamethrin in leeks treated with once dilution of 0.01% 28-high brassinolide (1 000 times), twice dilution of 0.01% 28-high brassinolide (1 000 times) and water control all reached the maximum on one day after root irrigation, which were 0.046 0, 0.058 3, 0.057 3 mg/kg, respectively. Treated with 500 times, 1 000 times and 2 000 times dilution of 0.01% 28-high brassinolactone, respectively, one day after deltamethrin root irrigation, the leeks treated with 0.01% 28-high brassinolactone dilution of 1 000 times had the lowest deltamethrin residue, which was significantly lower than water control and 0.01% 28-high brassinolactone treatment at 2 000 times dilution, but no significant difference was found between the treatment and 0.01% 28-high brassinolactone treatment at 500 times dilution.

Key words: Leek(Allium tuberosum), 28-high brassinolide, deltamethrin, residue of pesticide, degradation

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