Fig. 7.

Effect of malathion on 2,4-D metabolism in wild radish (WR; pooled biotypes), wheat, and bean. Extracts of plants treated with (+) or without (–) malathion before the application of [¹⁴C]2,4-D were separated by TLC and the ¹⁴C signals on the TLC plates were quantified. Representative TLC plates are shown in (A); quantitative values in (B) are the mean ±SE of three independent experiments. Different letters within bars denote significant differences (P<0.05) between means (the data for wild radish, wheat, and bean were analysed separately).