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Growth Characteristics and Herbicide Susceptibility of Texas Panicum

Published online by Cambridge University Press:  12 June 2017

James M. Chandler
Affiliation:
Oklahoma Agr. Exp. Sta., Stillwater, Oklahoma
P. W. Santelmann
Affiliation:
Oklahoma Agr. Exp. Sta., Stillwater, Oklahoma

Abstract

Texas panicum (Panicum texanum Buckl.) seed were collected and treatments applied in an effort to increase germination. Also, plants were grown in the field and growth characteristics studied. Poor seed germination was obtained with all treatments, but wide variation in storage temperature produced the best germination. Seedlings emerged from seed planted as deep as 3 inches. An average of 118 heads per plant and 195 seed per head were produced, or 23,010 seeds per plant. Plant, seed head, and seed development followed sigmoid growth patterns. The species was resistant to most preplant and preemergence herbicides used in screening experiments.

Type
Research Article
Copyright
Copyright © 1969 Weed Science Society of America 

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References

Literature Cited

1. Hauser, W. Ellis. 1965. Preemergence activity of three thiocarbamate herbicides in relation to depth of placement in the soil. Weeds 13:255257.Google Scholar
2. Silvers, W. A. 1933. Texas Grasses. The Clegg Co., San Antonia, Texas. 782 p.Google Scholar