Effect of Insecticides on Corn Root Growth12

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Abstract
The effect of BHC, aldrin and heptachlor on corn root growth was observed in nutrient solutions, sand and soil culture. BHC treatments in nutrient solution and sand culture resulted in shortened and enlarged primary roots along with a considerable reduction in the number of secondary roots and root hairs. Heptachlor treatments resulted in plants having roots which compared favorably with the controls whereas aldrin treatments showed only limited damage. No reduction in germination rate was observed with any of the soil toxicants tested.