Growth of ridge gourd seedlings in glyphosate and carbendazim co-contaminated soil
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Date
2018-07-03Author
Chouychai, Waraporn
Seokaew, Wannisa
Somtrakoon, Khanitta
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The purposes of this research were to assess the combined phytotoxicity of glyphosate and carbendazim, which were normally used as herbicide and fungicide, contaminated in soil as 100 – 1,000 mg/kg on seedling growth of ridge gourd. Both of glyphosate and carbendazim were toxic to shoot and root growth of ridge gourd seedlings. The 50% effective concentration (EC50) on shoot length, root length, root fresh weight and shoot dried weight of ridge gourd seedlings for glyphosate were 669.4, 413.0, 574.5 and 241.4 mg/kg, respectively whereas for carbendazim were >1,000, 357.8, >1,000 and 71.4 mg/kg, respectively. Co-contamination between glyphosate and carbendazim seemed to be antagonistic effect. Both of glyphosate and carbendazim at all concentration were not toxic to chlorophyll content in cotyledon of ridge gourd seedlings.
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