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This article in AJ

  1. Vol. 61 No. 2, p. 265-266
     
    Received: Aug 5, 1968


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doi:10.2134/agronj1969.00021962006100020026x

A Germination Inhibitor in the Seedcoat of Sericea (Lespedeza cuneata (Dumont) G. Don)1

  1. R. H. Logan,
  2. C. S. Hoveland and
  3. E. D. Donnelly2

Abstract

Abstract

The effects of seedcoats of high- and low-tannin sericea lespedeza on seed germination were studied. Seedcoat water extracts of both high- and low-tannin sericea lines reduced germination and radicle elongation of sericea seed. Removal of seedcoats Increased germination of both lines when germinated with water. Seedcoats of seed from high-tannin plants inhibited germination to a greater extent than those from low-tannin plants. A seedcoat inhibitor may be a factor in slow germination of sericea. The high seedcoat tannin content of both sericea lines shows that germination inhibition is caused by a substance other than tannin.

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