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Use of Gene Flow to Control Diclofop-Methyl Resistance in Italian Ryegrass (Lolium multiflorum)

Published online by Cambridge University Press:  12 June 2017

Claudio M. Ghersa ,
Maria A. Martinez-Ghersa ,
Timothy G. Brewer  and
Mary Lynn Roush
Claudio M. Ghersa
Affiliation:
Dep. Crop Soil Sci., Oregon State Univ., Corvallis, OR 97331
Maria A. Martinez-Ghersa
Affiliation:
Dep. For. Sci., Oregon State Univ., Corvallis, OR 97331
Timothy G. Brewer
Affiliation:
Dep. Crop Soil Sci., Oregon State Univ., Corvallis, OR 97331
Mary Lynn Roush
Affiliation:
Dep. For. Sci., Oregon State Univ., Corvallis, OR 97331
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Abstract

Flower production and pollen dispersal patterns of diclofop-methyl-susceptible and -resistant Italian ryegrass were examined to determine whether evolution of herbicide resistance could be controlled by cross-fertilization between biotypes. The susceptible and resistant ryegrass biotypes differed in timing and abundance of both ovule production and pollen release such that pollen from the susceptible plants had a much greater chance of fertilizing the resistant plant population than vice versa. Susceptible ryegrass, growing with or without wheat competition, produced more than 60% of its seeds before any pollen from resistant plants was released. In contrast, throughout the course of resistant plant seed generation, pollen from susceptible plants composed at least 30% of the total pollen load. These phenological differences, in conjunction with herbicide treatment results for third-generation ryegrass seedlings, suggest that gene flow can be used to reduce development of diclofop-methyl resistance in ryegrass populations within wheat cropping systems. In a wheat field infested with resistant ryegrass, cessation of herbicide application and sowing of a susceptible ryegrass biotype can be expected to reduce the evolution of diclofop-methyl resistance by at least 6% per year.

Keywords

Diclofop, (±)-2-[4-(2, 4-dichlorophenoxy)phenoxy]propanoic acid, methyl esterItalian ryegrass, Lolium multiflorum Lam. # LOLMUwheat, Triticum aestivum L.Fitness studiesweed managementTriticum aestivumLOLMU
Type
Research
Information
Weed Technology , Volume 8 , Issue 1 , March 1994 , pp. 139 - 147
Copyright
Copyright © 1994 by the Weed Science Society of America 

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References

Literature Cited

1. Betts, K. J., Ehlke, N. J., Wyse, D. L., Gronwald, J. W., and Somers, D. A. 1992. Mechanism of inheritance of diclofop resistance in Italian ryegrass (Lolium multiflorum). Weed Sci. 40:184–189.Google Scholar
2. Burdon, J. J. 1987. Mixed plant populations and disease occurrence. P. 44–48 in Barnes, R. S. K., Birks, H. J. B., Connor, E. F., Harper, J. L., and Parne, R. T., eds. Disease and Plant Population Biology. Cambridge Univ. Press, Cambridge.Google Scholar
3. Cooper, J. P. 1959. Selection and population structure in Lolium. III. Selection for date of ear emergence. Heredity 13:461–479.CrossRefGoogle Scholar
4. Cornish, M. A., Hayward, M. D., and Lawrence, M. J. 1979. Self incompatibility in ryegrass. I. Genetic control in diploid Lolium perenne L. Heredity 43:95–106.Google Scholar
5. Ellstrand, N. C. and Hoffman, C. A. 1990. Hybridization as an avenue of escape for engineered genes. Bioscience 40:438–442.CrossRefGoogle Scholar
6. Fearon, C. H., Hayward, M. D., and Lawrence, M. J. 1983. Self incompatibility in ryegrass. V. Genetic control, linkage, and seed set in diploid Lolium multiflorum Lam. Heredity 50:35–46.Google Scholar
7. Ghersa, C. M., Martinez-Ghersa, M. A., Brewer, T. G., and Roush, M. L. 1994. Fitness studies of diclofop-methyl-resistant Italian ryegrass (Lolium multiflorum): Selection pressures for resistance and germination time. Dep. For. Sci., Oregon State University, Corvallis, OR 97331. Agron. J. 86:(In press).Google Scholar
8. Ghersa, C. M., Martinez-Ghersa, M. A., Casal, J. J., Kaufman, M., Roush, M. L., and Derejibus, V. A. 1994. Effect of light on winter wheat (Triticum aestivum) and Italian ryegrass (Lolium multiflorum) competition. Weed Technol. 8:(In press).CrossRefGoogle Scholar
9. Gressel, J. 1991. Why get resistance? It can be prevented or delayed. P. 1–26 in Caseley, J. C., Cussans, G. W., and Atkin, R. K., eds. Herbicide Resistance in Weeds and Crops. Butterworth-Heinemenn Ltd., Oxford.Google Scholar
10. Hashem, A. 1991. Effect of density, proportion and spatial arrangement on the competition of winter wheat and Italian ryegrass (Lolium multiflorum Lam). Ph.D. Thesis, Oregon State Univ., Corvallis. 130 p.Google Scholar
11. Hirst, J. M. 1952. An automatic volumetric spore trap. Ann. Appl. Biol. 39:257–265.Google Scholar
12. Jackson, P. L. 1985. Agriculture. P. 87–97 in Kimerling, A. J. and Jackson, P. L., eds. Atlas of the Pacific Northwest. Oregon State Univ. Press, Corvallis.Google Scholar
13. Levin, D. A. 1984. Immigration in plants: an exercise in the subjunctive. P. 242–260 in Dirzo, R., Sarukhan, R., and Sarukhan, J., eds. Perspectives on Plant Population Ecology. Sinauer Associates, Sunderland, MA.Google Scholar
14. Maxwell, B. D., Roush, M. L., and Radosevich, S. R. 1990. Predicting the evolution and dynamics of herbicide resistance in weed populations. Weed Tech. 4:2–13.CrossRefGoogle Scholar
15. Roush, M. L., Cordray, S. M., Ghersa, C M., and Radosevich, S. R. 1991. Evaluating the sustainability of a regional agriculture using a GIS and an interdisciplinary systems approach. West. Soc. Weed Sci. 44:43.Google Scholar
16. Roush, M. L., Radosevich, S. R., and Maxwell, B. D. 1990. Future outlook for herbicide resistance research. Weed Technol. 4:208–214.Google Scholar
17. Stanger, C. E. and Appleby, A. P. 1989. Italian ryegrass (Lolium multiflorum) accessions tolerant to diclofop. Weed Sci. 37:350–352.Google Scholar
18. Terrell, E. E. 1966. Taxonomic implications of genetics in ryegrass (Lolium). Bot. Rev. 32:138–164.Google Scholar
19. van Staden, J. and Hendry, N. S. 1985. An evaluation of the problem of volunteer ryegrass in seed production. S. Afr. Tydskr. Plant Grond. 2:157–160.Google Scholar