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Germination Control of Johnsongrass Rhizome Buds

Published online by Cambridge University Press:  12 June 2017

Richard J. Hull
Richard J. Hull*
Affiliation:
Department of Botany and Plant Pathology, Purdue University
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Abstract

Field-harvested johnsongrass (Sorghum halepense (L.) Pers.) rhizomes were assayed for bud dormancy and growth potential under a number of experimental conditions. Natural dormancy was not detected in single-node rhizome pieces harvested at any time of the year. Shoot growth rates were highly variable. Kinetin, benzyl adenine, gibberellic acid, and 2-chloroethylphosphonic acid were ineffective in enhancing germination or normalizing shoot growth. Scale leaves of rhizomes had no effect on bud growth. Rhizome buds were strongly influenced by apical dominance and emerged shoots partially suppressed germination of adjacent buds. The optimum temperature for bud germination and shoot growth was approximately 30 C. Bud germination was suppressed at 15 C. Johnsongrass rhizomes failed to exhibit cold hardiness at any time in their life cycle.

Type
Research Article
Information
Weed Science , Volume 18 , Issue 1 , January 1970 , pp. 118 - 121
Copyright
Copyright © 1970 Weed Science Society of America 

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References

Literature Cited

1. Anderson, L. E., Appleby, A. P., and Weseloh, J. W. 1960. Characteristics of johnsongrass rhizomes. Weeds 8:402–406.CrossRefGoogle Scholar
2. Burg, S. P. and Burg, E. A. 1968. Ethylene formation in pea seedlings: its relation to the inhibition of bud growth caused by indole-3-acetic acid. Plant Physiol. 43:1069–1074.CrossRefGoogle Scholar
3. Hull, R. J. 1969. Translocation of assimilates and dalapon in established johnsongrass. Weed Sci. 17:314–320.CrossRefGoogle Scholar
4. Ingle, M. and Rogers, B. J. 1961. The growth of a midwestern strain of Sorghum halepense under controlled conditions. Amer. J. Bot. 48:392–396.Google Scholar
5. Johnson, B. G. and Buchholtz, K. P. 1961. An in vitro method of evaluating the activity of buds on rhizomes of quackgrass (Agropyron repens). Weeds 9:600–606.CrossRefGoogle Scholar
6. Johnson, B. G. and Buchholtz, K. P. 1962. The natural dormancy of vegetative buds on the rhizomes of quackgrass. Weeds 10:53–57.CrossRefGoogle Scholar
7. Laude, H. M. 1953. The nature of summer dormancy in perennial grasses. Bot. Gaz. 114:284–292.Google Scholar
8. McWhorter, C. G. 1963. Effects of surfactant concentration on johnsongrass control with dalapon. Weeds 11:83–86.CrossRefGoogle Scholar
9. McWhorter, C. G. and Hartwig, E. E. 1965. Effectiveness of preplanting tillage in relation to herbicides in controlling johnsongrass for soybean production. Agron. J. 57:385–389.Google Scholar
10. Oyer, E. B., Gries, G. A., and Rogers, B. J. 1959. The seasonal development of johnsongrass plants. Weeds 7:13–19.CrossRefGoogle Scholar
11. Vengris, J. 1962. The effect of rhizome length and depth of planting on the mechanical and chemical control of quackgrass. Weeds 10:71–74.CrossRefGoogle Scholar
12. Warner, H. L. and Leopold, A. C. 1967. Plant growth regulation by stimulation of ethylene production. BioScience 17:722.CrossRefGoogle Scholar
13. Warner, H. L. and Leopold, A. C. 1969. Ethylene evolution from 2-chloroethylphosphonic acid. Plant Physiol. 44:156–158.CrossRefGoogle ScholarPubMed