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Germination and Growth of Grasses and Legumes from Seeds Treated with Glyphosate and Paraquat

Published online by Cambridge University Press:  12 June 2017

Luis C. Salazar  and
Arnold P. Appleby
Luis C. Salazar
Affiliation:
Dep. Crop Sci., Oregon State Univ., Corvallis 97331
Arnold P. Appleby
Affiliation:
Dep. Crop Sci., Oregon State Univ., Corvallis 97331
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Abstract

In greenhouse studies, glyphosate [N-(phosphonomethyl)glycine] at 1.0 and 3.0 kg/ha and paraquat (1,1′-dimethyl-4,4-bipyridinium ion) at 0.6 kg/ha were applied to exposed seeds of six grasses and two legume species on continuously wet soil. Glyphosate reduced germination of both legumes and three grasses and reduced seedling growth of all species. Paraquat was toxic only to the grasses. Glyphosate mainly affected germination and growth of legumes when applied directly to their seeds. Reductions also were measured, however, when untreated legume seeds were transferred to glyphosate-treated soil.

Keywords

Germinationstale seedbedsoil herbicide activity
Type
Research Article
Information
Weed Science , Volume 30 , Issue 3 , May 1982 , pp. 235 - 237
Copyright
Copyright © 1982 by the Weed Science Society of America 

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References

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