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http://dx.doi.org/10.3839/jabc.2017.054

Absorption of soil residual azoxystrobin to lettuce  

Kim, Min-Gi (Department of Plant Life and Environment Sciences, Hankyong National University)
Hwang, Kyu-Won (Department of Plant Life and Environment Sciences, Hankyong National University)
Hwang, Eun-Jung (Department of Plant Life and Environment Sciences, Hankyong National University)
Yoo, Soo-Cheol (Department of Plant Life and Environment Sciences, Hankyong National University)
Moon, Joon-Kwan (Department of Plant Life and Environment Sciences, Hankyong National University)
Publication Information
Journal of Applied Biological Chemistry / v.60, no.4, 2017 , pp. 343-349 More about this Journal
Abstract
This study was conducted to investigate the residual level and the amount of transfer to lettuce grown in field condition treated with the 5-methyl-1,2,4-triazolo[3,4-b][1,3]benzothiazole (Azoxystrobin). The field trials on lettuce were carried out at two different green houses located in Gwangju (Field 1) and Yongin (Field 2). Soil and lettuce samples were collected at different days after soil treatment of azoxystrobin with two different concentrations, respectively. Average recoveries for azoxystrobin ranged from 86.9 to 113.6% from soil and lettuce with the variation coefficient of 0.1-4.6%. The initial concentrations of azoxystrobin in Gwangju soil were 9.20, 11.00 mg/kg and decreased to 1.36, 2.70 mg/kg at 43 DAT (days after treatment) in field 1, while 1.06, 2.23 mg/kg decreased to 0.20 and 0.67 mg/kg at 36 DAT in field 2, respectively. The half-lives of azoxystrobin were about 19.4 and 23.3 days for the low and high concentration of azoxystrobin treated soils in field 1 and 11.5 and 17.8 days in field 2 soils, respectively. Residue levels of azoxystrobin in lettuce were not detected in filed 1 and field 2 soils, respectively.
Keywords
Absorption; Azoxystrobin; Fungicide; Lettuce; Residue;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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