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Dormancy in Western Ironweed and Leafy Spurge

Published online by Cambridge University Press:  12 June 2017

Warren G. Monson  and
Frank S. Davis
Warren G. Monson
Affiliation:
Crops Research Division, ARS, USDA, Department of Agronomy, Univ. of Nebraska, Lincoln, Nebraska
Frank S. Davis
Affiliation:
Crops Research Division, ARS, USDA, Department of Agronomy, Univ. of Nebraska, Lincoln, Nebraska
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Abstract

Internal dormancy was shown to occur in western ironweed (Vernonia baldwinni Torr.) and leafy spurge (Euphorbia esula L.) in late summer and fall. Time required for emergence and extent of growth were important indicators of dormancy. Dormancy is apparently broken naturally in the field by low soil temperatures.

Type
Research Article
Information
Weeds , Volume 12 , Issue 3 , July 1964 , pp. 238 - 239
Copyright
Copyright © 1964 Weed Science Society of America 

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References

Literature Cited

1. Johnson, B. G., and Buchholtz, K. P. 1962. The natural dormancy of vegetative buds of quackgrass. Weeds 10:53–57.CrossRefGoogle Scholar