Hostname: page-component-cd9895bd7-fscjk Total loading time: 0 Render date: 2024-12-27T23:55:15.802Z Has data issue: false hasContentIssue false

Identification and Utilization of Variation in Herbicide Tolerance in Soybean (Glycine max) Breeding

Published online by Cambridge University Press:  12 June 2017

Edgar E. Hartwig*
Affiliation:
U.S. Dep. Agric., ARS, in cooperation with the Delta Branch, Miss. Agric. and For. Exp. Stn., Stoneville, MS 38776

Abstract

Herbicides marketed for selected crops were chosen on the basis that major cultivars of the specific crop were tolerant. Our work with soybeans [Glycine max (L.) Merr.] has demonstrated that variability exists with regard to sensitivity or tolerance to several herbicides. As a part of our breeding program to develop improved soybean cultivars, we have evaluated advanced breeding lines and germplasm for reaction to herbicides on the market as well as experimental herbicides. A breeding line was identified and released for production which showed very little injury from two over-the-top applications of a double rate of 2,4-DB [4-(2,4-dichlorophenoxy)butyric acid]. Other strains showed severe injury and depressed seed yield. Variation in reaction to glyphosate [N-(phosphonomethyl)glycine] has been observed. Lines tolerant to 0.56 kg ai/ha in one growing season were severely damaged the following season. When 200 germplasm lines from eastern Asia were treated with glyphosate, 6% showed less than 15% injury while 21% showed over 80% injury. The cultivar ‘Tracy′, selected for tolerance to 2,4-DB and a high level of resistance to the soil-borne disease causing phytophthora rot, was found to be sensitive to metribuzin [4-amino-6-(1,1-dimethylethyl)-3-(methylthio)-1,2,4-triazin-5(4H)-one]. Tracy has two major genes controlling resistance to phytophthora rot caused by Phytophthora megasperma Drechs. f. sp. glycinea Kuan and Erwin. One of these genes is closely linked with a gene controlling reaction to metribuzin. A crossover type was identified. The cultivar ‘Tracy-M’ retains the high level of resistance to phytophthora rot and is tolerant to metribuzin. A small percentage of germplasm lines evaluated were found to be sensitive to bentazon. Reaction to bentazon [3-(1-methylethyl)-(1H)-2,1,3-benzothiadiazin-4(3H)-one 2,2-dioxide] is simply inherited.

Type
Research Article
Copyright
Copyright © 1987 by the Weed Science Society of America 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Literature Cited

1. Athow, K. L., Laviolette, F. A., and Wilcox, J. R. 1979. Genetics of resistance to physiologic races of Phytophthora megasperma var. sojae in the soybean cultivar Tracy. Phytopathology 69:641642.Google Scholar
2. Barrentine, W. L., Edwards, C. J. Jr., and Hartwig, E. E. 1976. Screening soybeans for tolerance to metribuzin. Agron. J. 68:351353.Google Scholar
3. Barrentine, W. L., Hartwig, E. E., Edwards, C. J. Jr., and Kilen, T. C. 1982. Tolerance of three soybean (Glycine max) cultivars to metribuzin. Weed Sci. 30:344348.Google Scholar
4. Bernard, R. L. and Wax, L. M. 1975. Inheritance of a sensitive reaction to bentazon herbicide. Soybean Genet. Newsl. 2:4647.Google Scholar
5. Brim, C. A. and Ross, J. P. 1966. Registration of Pickett soybeans. Crop Sci. 6:305.Google Scholar
6. Clark, W. J., Harris, F. A., Maxwell, F. G., and Hartwig, E. E. 1972. Resistance of certain soybean cultivars to bean leaf beetle, striped blister beetle, and bollworm. J. Econ. Entomol. 65:16691672.Google Scholar
7. Hartwig, E. E. 1972. Utilization of soybean germplasm strains in soybean improvement programs. Crop Sci. 12:856859.Google Scholar
8. Hartwig, E. E. and Epps, J. M. 1973. Registration of Forrest soybeans. Crop Sci. 13:227.Google Scholar
9. Hartwig, E. E. 1974. Registration of Tracy soybeans. Crop Sci. 14:777.Google Scholar
10. Hartwig, E. E. and Epps, J. M. 1977. Registration of Centennial soybeans. Crop Sci. 17:979.CrossRefGoogle Scholar
11. Hartwig, E. E. and Epps, J. M. 1978. Registration of Bedford soybeans. Crop Sci. 18:918.Google Scholar
12. Hartwig, E. E., Barrentine, W. L., and Edwards, C. J. Jr. 1980. Registration of Tracy-M soybeans. Crop Sci. 20:825.CrossRefGoogle Scholar
13. Kilen, T. C., Hartwig, E. E., and Keeling, B. L. 1974. Inheritance of a second major gene for resistance to phytophthora rot in soybeans. Crop Sci. 14:260262.CrossRefGoogle Scholar
14. Kilen, T. C. and Barrentine, W. L. 1983. Linkage relationships in soybean between genes controlling reactions to phytophthora rot and metribuzin. Crop Sci. 23:894896.Google Scholar
15. U.S. Dep. of Agric. Crop Reporting Board: Crop Production. 1984. November issue.Google Scholar
16. Van Duyn, J. W., Turnipseed, S. G., and Maxwell, J. D. 1971. Resistance in soybeans to the Mexican bean beetle. I. Sources of resistance. Crop Sci. 11:572573.Google Scholar