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Accelerated After-Ripening for Overcoming Seed Dormancy in Grass Weeds

Published online by Cambridge University Press:  12 June 2017

R.B. Taylorson  and
M.M. Brown
R.B. Taylorson
Affiliation:
Agric. Res. Serv., U.S. Dep. Agric., Beltsville, MD 20705
M.M. Brown
Affiliation:
Dep. Bot., Western Maryland Coll., Westminster, MD 21157
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Abstract

The initial dormancy in mature seeds of 12 out of 14 species of grass weeds studied was significantly overcome by pretreatment of the dry seeds at 50 C in stoppered vials. The time required for maximum effect varied depending upon species and lots within species. The procedure, termed accelerated after-ripening, can produce seeds in various stages of dormancy simply by varying the duration of the pretreatment. One of the first stages that becomes apparent is an increased response to light.

Type
Research Article
Information
Weed Science , Volume 25 , Issue 6 , November 1977 , pp. 473 - 476
Copyright
Copyright © 1977 by the Weed Science Society of America 

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References

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