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Dissipation behavior of thiophanate-methyl in apple and strawberry fruits under open field conditions [electronic resource]

By:

El-Hefny, Dalia, E

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Language: English Summary language: Arabic Description: P. 38-43Other title:

سلوك اختفاء مبيد الثيوفينات ميثيل فى ثمار التفاح و الفراولة تحت الظروف الحقلية [Added title page title]

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Alexandria science exchange journal, 2017 v. 38 (1) [electronic resource]:

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Full Text Article

In: Alexandria Science Exchange Journal 2017.v.38(1)Summary: Thiophanate-methyl is an effective fungicide on several food crops. In the present study, dissipation of residue levels of thiophanate-methyl in apple and strawberry fruits under open field conditions were studied using high performance liquid chromatography with diode array detection (HPLC-DAD).The extraction and clean-up were conducted by QuEChERS method. The limit of quantitation and detection were 0.01 and 0.003 mg/kg, respectively. The results suggest that the thiophanatemethyl dissipation curves followed the first order kinetics and its half-life values were (1.01) and (1.26) days for apple and strawberry, respectively. The residues in apple and strawberry were below the codex maximum residue limit (MRL) (0.5 and 0.1 mg/kg) after 8 and 4 days of the application, respectively.

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Articles	Main	ART ASEJ V38 No1 5 (Browse shelf(Opens below))	Available

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Previous	ART ASEJ V38 No1 2 The effect of blends between some Egyptian cotton varieties and introduced cottons on technological and spinning characters	ART ASEJ V38 No1 3 Morphological and biochemical markers for genetic diversity and salt tolerant In some barley cultivars and lines	ART ASEJ V38 No1 4 Evaluation of breeding programs susceptibility for two important forage crops using DNA barcoding	ART ASEJ V38 No1 5 Dissipation behavior of thiophanate-methyl in apple and strawberry fruits under open field conditions	ART ASEJ V38 No1 6 Molecular characterization of some Egyptian cotton varieties	ART ASEJ V38 No1 7 Response of some wheat cultivars to nano- , mineral fertilizers and amino acids foliar application	ART ASEJ V38 No1 8 Pattern of pink bollworm diapaused larval exit from the last season cotton bolls and their biological parameters	Next

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Thiophanate-methyl is an effective fungicide on several food crops. In the present study, dissipation of residue levels of thiophanate-methyl in apple and strawberry fruits under open field conditions were studied using high performance liquid chromatography with diode array detection (HPLC-DAD).The extraction and clean-up were conducted by QuEChERS method. The limit of quantitation and detection were 0.01 and 0.003 mg/kg, respectively. The results suggest that the thiophanatemethyl dissipation curves followed the first order kinetics and its half-life values were (1.01) and (1.26) days for apple and strawberry, respectively. The residues in apple and strawberry were below the codex maximum residue limit (MRL) (0.5 and 0.1 mg/kg) after 8 and 4 days of the application, respectively.

Summary in Arabic.

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