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This article in AJ

  1. Vol. 55 No. 6, p. 551-555
    Received: Apr 25, 1963

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Effects of Population Levels on Yield and Maturity of Maize Hybrids Grown on the Northern Great Plains1

  1. Darrold E. Termunde,
  2. D. B. Shank and
  3. V. A. Dirks2



Plant production reached a maximum at 12,000 to 16,000 plants per acre in eastern South Dakota. Grain production reached a maximum at the same level and fell off drastically if population levels exceeded this optimum. Under conditions of drouth, maximum yields may be associated with very low population levels.

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