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This article in AJ

  1. Vol. 63 No. 5, p. 805-808
     
    Received: Apr 7, 1971


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doi:10.2134/agronj1971.00021962006300050045x

Relationships among Laboratory Germination, Greenhouse, and Field Emergence of Four Castor Seed Lots1

  1. R. E. Stafford and
  2. R. B. Metzer2

Abstract

Abstract

High-, intermediate-, and low-germinating castor seed lots were evaluated for their performance in rolled germination paper, Kinipak, sterile sand, and field soil. High-germinating seed gave similar results on the four substrates. Low- and intermediate-germinating seed lots gave maximum germination in sterile sand and field soil. High positive correlations were found among all germination substrates. Laboratory germination in tetramethylthiuram disulfide (thiram)-treated rolled germination paper at standard temperatures and germination on Kimpak at a constant 27 C were good indicators of seedling emergence in the field.

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