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Factors Limiting the Distribution of Cogongrass, Imperata cylindrica, and Torpedograss, Panicum repens

Published online by Cambridge University Press:  12 June 2017

John W. Wilcut
Affiliation:
Virginia Polytech. Inst. & State Univ., Tidewater Agric. Exp. Stn., P.O. Box 7219, 6321 Holland Road, Suffolk, VA 23437
Roland R. Dute
Affiliation:
Dep. Bot. and Microbial. Alabama Agric. Exp. Stn., Auburn Univ., AL 36849
Bryan Truelove
Affiliation:
Dep. Bot. and Microbial. Alabama Agric. Exp. Stn., Auburn Univ., AL 36849
Donald E. Davis
Affiliation:
Dep. Bot. and Microbial. Alabama Agric. Exp. Stn., Auburn Univ., AL 36849

Abstract

Greenhouse, growth chamber, and laboratory studies were conducted to determine anatomical and morphological characteristics and cultural practices limiting the distribution of cogongrass, torpedograss, and johnsongrass in the United States. Cogongrass did not produce axillary buds along most of the rhizome nor regenerate when apical six-node-long rhizome segments were buried deeper than 8 cm. Both torpedograss and johnsongrass produced axillary buds along the entire lengths of their rhizomes. Torpedograss shoot emergence decreased at burial depths between 8 and 16 cm. Shoot emergence from johnsongrass rhizomes was not affected by burial as deep as 16 cm. Rhizomes of all three species were tolerant of desiccation. Cogongrass grew better in soil at pH 4.7 than in soil at pH 6.7, whereas torpedograss and johnsongrass grew equally well in either pH. It is postulated that cogongrass spread is limited by lack of axillary bud formation on most of the rhizome and the inability of rhizomes to send up new shoots if buried deeper than 8 cm. These factors could account for the intolerance of cogongrass to cultivation. Torpedograss appears to spread only vegetatively due to the lack of viable seed production.

Type
Weed Biology and Ecology
Copyright
Copyright © 1988 by the Weed Science Society of America 

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References

Literature Cited

1. Buchanan, G. A., Hoveland, C. S., and Harris, M. C. 1975. Response of weeds to soil pH. Weed Sci. 23:473477.Google Scholar
2. Dickens, R. 1974. Cogongrass in Alabama after sixty years. Weed Sci. 22:177179.Google Scholar
3. Dickens, R. and Moore, G. M. 1974. Effects of light, temperature, KNO3, and storage on germination of cogongrass. Agron. J. 66:187188.CrossRefGoogle Scholar
4. Dickens, R. and Buchanan, G. A. 1975. Control of cogongrass with herbicides. Weed Sci. 23:194197.CrossRefGoogle Scholar
5. Elmore, C. D. 1986. Weed survey–southern states. Res. Rep. South. Weed Sci. Soc. 39:136158.Google Scholar
6. Flint, E. P. and Patterson, D. T. 1983. Interference and temperature effects on growth in soybean (Glycine max) and associated C3 and C4 weeds. Weed Sci. 31:193199.Google Scholar
7. Hartley, C.W.S. 1949. An experiment on mechanical methods of Lalang eradication. Malay Agric. J. 32:236252.Google Scholar
8. Holm, L. G., Plucknett, D. L., Pancho, J. B., and Herberger, J. P. 1977. The World's Worst Weeds. Distribution and Biology. Univ. Press of Hawaii, Honolulu, HI. 609 pp.Google Scholar
9. Hubbard, C. E. 1944. Imperata cylindrica. Taxonomy, Distribution, Economic Significance, and Control. Imp. Agric. Bur. Joint Publ. No. 7, Imperial Bureau Pastures and Forage Crops, Aberystwyth, Wales. Great Britain. 53 pp.Google Scholar
10. Kigel, J. and Koller, D. 1985. Asexual reproduction in weeds. Pages 65100 in Duke, S. O., ed. Weed Physiology. Volume I. Reproduction and Ecophysiology. CRC Press, Boca Raton, FL.Google Scholar
11. Patterson, D. T., Terrell, E. E., and Dickens, R. 1979. Cogongrass in Mississippi. Miss. Agric. For. Exp. Stn. Res. Rep. 46(6):13.Google Scholar
12. Patterson, D. T., Flint, E. P., and Dickens, R. 1980. Effects of temperature, photoperiod, and population source on the growth of cogongrass (Imperata cylindrica). Weed Sci. 28:505509.Google Scholar
13. Peng, S. Y. 1984. The biology and control of weeds in sugarcane. Developments in Crop Science (4). Elsevier Science, New York. 326 pp.Google Scholar
14. Postek, M. T., Howard, K. S., Johnson, A. H., and McMichael, K. L. 1980. Scanning Electron Microscopy. A Student's Handbook. Ladd Res. Industries, Inc., New York, NY. 305 pp.Google Scholar
15. Radosevich, S. R. and Holt, J. S. 1984. Weed Ecology. Implications for Vegetation Management. John Wiley and Sons, New York. 265 pp.Google Scholar
16. Roush, M. L. and Radosevich, S. R. 1985. Relationship between growth and competitiveness of four annual weeds. J. Appl. Ecol. 22:895905.Google Scholar
17. Soerjani, M. and Soemarwoto, O. 1969. Some factors affecting the germination of Alang-alang Imperata cylindrica rhizome buds. PANS 15:376380.Google Scholar
18. Soerjani, M. 1970. Alang-alang Imperata cylindrica L. Beauv., pattern of growth as related to its problem of control. Biol. Trop. Bull. No. 1. Pages 8896.Google Scholar
19. Tarver, D. P., Rogers, J. A., and Mahler, M. J. 1978. Aquatic and Wetland Plants of Florida. Fla. Dep. Nat. Resour. Bur. Aquat. Plant Res. Control. 127 pp.Google Scholar
20. Teem, D. H., Hoveland, C. S., and Buchanan, G. A. 1974. Primary root elongation of three weed species. Weed Sci. 22:4750.Google Scholar
21. Weaver, S. E. and Hamill, A. S. 1985. Effects of soil pH on competitive ability and leaf nutrient content of corn (Zea mays L.) and three weed species. Weed Sci. 33:447451.CrossRefGoogle Scholar
22. Wilcut, J. W., Truelove, B., Davis, D. E., and Williams, J. C. 1988. Temperature factors limiting the spread of cogongrass (Imperata cylindrica) and torpedograss (Panicum repens). Weed Sci. 36:4955.Google Scholar
23. Zimdahl, R. L. 1980. Weed-Crop Competition. A Review. Int. Plant Prot. Ctr., Oregon. 197 pp.Google Scholar