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Agronomy Journal Abstract -

Estimates of Cost and Optimum Plot Size and Shape for Measuring Yield and Chemical Characters in Soybeans1

 

This article in AJ

  1. Vol. 49 No. 8, p. 444-449
     
    Received: Feb 8, 1956


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doi:10.2134/agronj1957.00021962004900080012x
  1. Charles R. Weber and
  2. Theodore W. Horner2

Sypnosis

Sypnosis

Seed yield was 6 to 28 times more variable than chemical characters (oil, protein, iodine number). Use of incomplete block designs and other considerations justified long, narrow plots. Total cost (in hours) was 39.0% for obtaining yield and 61.0% for chemical attributes. Optimum plot size, apportioning cost among characters, was 3.2 times the basic unit ( 8 × 2 feet). Yield required 33, 50 and 700 times more replication than oil, protein and iodine number for comparable precision.

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