Abstract

During seed treatment studies of cereals (Srivastava, 1955) at Kansas Agricultural Experiment Station, Manhattan, U. S. A. some interesting results were observed with wheat which are recorded below. Insecticides and insecticide-fungicide formulations were applied at different rates as seed treatment on wheat to determine the effect of each on germination and subsquent plant growth. The insecticides used were wettable powders of 25% lindane, 75% aldrin, and 50% heptachlor. Insecticide-fungicide combinations used included Seed Guard, a commercial wettable powder formulation, and liquid Panogen PA-1 and Panogen PA-2. A given quantity of certified Pawnee wheat was weighed and treated with different dosages of chemicals in a motordriven rotary mixer on the basis of fluid or avoirdupois ounces per 100 pounds of seed. Treated and untreated samples were then placed in individual cotton sacks and stored in a dry room to simulate farm storage conditions.

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