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Influence of Paraquat on Seed Germination

Published online by Cambridge University Press:  12 June 2017

Arnold P. Appleby  and
Ronald G. Brenchley
Arnold P. Appleby
Affiliation:
Department of Farm Crops, Oregon State University, Corvallis, Oregon
Ronald G. Brenchley
Affiliation:
Department of Farm Crops, Oregon State University, Corvallis, Oregon
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Abstract

Three experiments were conducted in the greenhouse to study the effect of 1,1′-dimethyl-4,4′-bipyridinium salt (paraquat) when sprayed directly on seeds at the soil surface. Germination of alfalfa (Medicago sativa L., var. DuPuit) and red clover (Trifolium pratense L., var. Kenland) was not affected at 1 1b/A paraquat, but germination of Kentucky bluegrass (Poa pratensis L., var. Newport) and perennial ryegrass (Lolium perenne L., var. Linn) was severely reduced at that rate. A protecting layer of soil approximately 0.25 inch thick was completely effective in protecting the seeds from the effect of paraquat. Germination of seven other grass species was reduced by 0.5 1b/A paraquat.

Type
Research Article
Information
Weed Science , Volume 16 , Issue 4 , October 1968 , pp. 484 - 485
Copyright
Copyright © Weed Science Society of America 

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References

Literature Cited

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