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This article in JEQ

  1. Vol. 4 No. 1, p. 117-120
     
    Received: Mar 1, 1974
    Published: Jan, 1975


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doi:10.2134/jeq1975.00472425000400010026x

Fungicide Treatment of Wheat Seed: Is it Necessary?1,2

  1. D. E. Mathre3,
  2. V. R. Stewart4,
  3. R. H. Johnston3 and
  4. D. E. Baldridge5

Abstract

Abstract

The value of using nonmercury fungicide seed treatments to increase stand and yield of winter and spring wheat (Triticum aestivum L.), and to control common stinking smut (Tilletia caries [DC.] Tul.) was investigated. In a greenhouse test using soil from 38 locations in Montana, emergence from seed treated with mercury averaged 91.2% compared to 88.4% from untreated seed. Field tests using both winter and spring wheat which had been treated with various mercury or nonmercury based fungicides, failed to produce any significant increase in stand or yield.

Control of common stinking smut in winter wheat with nonmercury seed treatments was accomplished, in some cases at rates lower than the label recommendation.

The toxicity of the various nonmercury materials that will control common stinking smut indicates that these compounds should have less deleterious effects upon the environment than the mercury-based seed treatments.

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