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Published in Agron J 61:265-266 (1969)
© 1969 American Society of Agronomy
677 S. Segoe Rd., Madison, WI 53711 USA
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A Germination Inhibitor in the Seedcoat of Sericea (Lespedeza cuneata (Dumont) G. Don)1

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

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.

Key Words: Tannin

1 Contribution from the Department of Agronomy and Soils, Auburn University Agricultural Experiment Station, Auburn, Alabama 36830. This research is part of an M.S. thesis submitted by the senior author to Auburn University.

2 NDEA Fellow, Professor of Crops, and Professor of Plant Breeding.

Received for publication August 5, 1968.




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Copyright © 1969 by the American Society of Agronomy.