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Fig. 3. Effect of presoaking seeds following aerosol smoke treatment for different periods on the vigor index of maize seedlings after 7 d under 16:8h light/dark period at 25 ± 0.5°C. Seeds were presoaked in water for different durations before exposure to aerosol smoke. Vigor index for the control was 1165. Average coefficient of variation (%) for 30 min smoke were 13.2 (rinsed) and 18.2 (nonrinsed), 60 min smoke were 26.4 (rinsed) and 40 (nonrinsed), 90 min smoke were 26 (rinsed) and 50 (nonrinsed).
