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Influence of Winter Wheat (Triticum aestivum) Cultivars on Weed Control in Sorghum (Sorghum bicolor)

  • Gail A. Wicks (a1), Paul T. Nordquist (a1), Gordon E. Hanson (a1) and John W. Schmidt (a2)

Abstract

Winter wheat cultivars that are competitive with weeds help control weeds in crop rotations. Ten winter wheat cultivars were evaluated for interference with summer annual grasses in the wheat and the subsequent grain sorghum crop in a winter wheat-ecofallow sorghum-fallow rotation in which there are two 10–mo fallow periods and two crops in 3 yr during 1983 to 1987. The medium–tall (100 to 109 cm tall) and medium–statured (90 to 99 cm tall) winter wheat cultivars (‘Buckskin’, ‘Siouxland’, ‘Lancota’, ‘Centurk 78’, and ‘Brule’) were more competitive than medium-short (80 to 89 cm tall) and short (68 to 79 cm tall) cultivars (‘Eagle’, ‘Homestead’, ‘Colt’, ‘Vona’, and ‘TAM 101’). Atrazine plus paraquat was applied to all cultivars 30 d after wheat harvest. When grain sorghum was planted in areas previously seeded with medium–tall and medium-statured winter wheat, summer annual grass weed biomass in sorghum was 61% less than in grain sorghum seeded into areas previously planted with medium-short and short wheat cultivars. Use of pendimethalin plus 2,4–D in winter wheat and glyphosate plus alachlor in grain sorghum eliminated differences in summer annual grass weed density and weed biomass among wheat cultivars. Sorghum grain yields were improved 7% when herbicides were used in the winter wheat and sorghum but value of the increase was less than cost of herbicides. Substituting less costly herbicides for herbicides used in this study still would not have been enough to pay for cost of herbicides for five cultivars. Grain sorghum grown on weed–free stubble of medium–tall and medium–statured winter wheat produced more grain than grain sorghum grown after medium–short and short-statured winter wheat by 5%. Volunteer wheat density during the fallow period following grain sorghum was lower in areas originally seeded to Centurk 78 and Siouxland wheat while volunteer wheat density was higher in areas planted to Homestead and Vona.

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1. Challaiah, , Burnside, O. C., Wicks, G. A., and Johnson, V. A. 1986. Competition between winter wheat (Triticum aestivum) cultivars and downy brome (Bromus tectorum). Weed Sci. 34:698–693.
2. Crutchfield, D. A., Wicks, G. A., and Burnside, O. C. 1986. Effect of winter wheat (Triticum aestivum) straw level on weed control. Weed Sci. 34:110114.
3. Ghadiri, H., Wicks, G. A., Fenster, C. R., and Burnside, O. C. 1981. Control of weeds in winter wheat (Triticum aestivum) and unfilled stubble with herbicides. Weed Sci. 29:6570.
4. Guenzi, W. D., McCalla, T. M., and Norstadt, F. A. 1967. Presence and persistence of phytotoxic substances in wheat, oats, corn and sorghum residues. Agron. J. 59:163165.
5. Hoefer, R. H., Wicks, G. A., and Burnside, O. C. 1981. Grain yields, soil water storage, and weed growth in a winter wheat-corn-fallow rotation. Agron. J. 73:10661071.
6. McHarry, M. J. and Kapusta, G. 1979. Herbicide applications in tillered winter wheat for double crop soybean weed control. Agron. J. 71:10511055.
7. Phillips, W. M. 1964. A new technique of controlling weeds in sorghum in a wheat-sorghum-fallow rotation in the Great Plains. Weeds 12:4244.
8. Ramsel, R. E. and Wicks, G. A. 1988. Use of winter wheat (Triticum aestivum) cultivars and herbicides in aiding weed control in an ecofallow corn (Zea mays) rotation. Weed Sci. 36:394398.
9. Vander Vorst, P. B., Wicks, G. A., and Burnside, O. C. 1983. Weed control in a winter wheat-corn-ecofarming rotation. Agron. J. 75:507511.
10. Wicks, G. A. 1976. Ecofallow: a reduced tillage system for the Grain Plains. Weeds Today 7(2):2023.
11. Wicks, G. A., Ramsel, R. E., Nordquist, P. T., Schmidt, J. W., and Challaiah, . 1986. Impact of wheat cultivars on establishment and suppression of summer annual weeds. Agron. J. 78:5962.
12. Wicks, G. A. 1985. Early application of herbicides for no-till sorghum (Sorghum bicolor) in wheat (Triticum aestivum) stubble. Weed Sci. 33:713716.
13. Wicks, G. A. 1986. Herbicide application on wheat and stubble for no-tillage corn. Agron. J. 78:843848.
14. Wicks, G. A., Smika, D. E., and Hergert, G. W. 1988. Long term effects of no-tillage in a winter wheat (Triticum aestivum)-sorghum (Sorghum bicolor)-fallow rotation. Weed Sci. 36:384393.
15. Worsham, A. D. 1984. Crop residues kill weeds-allelopathy at work with wheat and rye. Crops Soils Mag. 37(2): 1820.

Keywords

Influence of Winter Wheat (Triticum aestivum) Cultivars on Weed Control in Sorghum (Sorghum bicolor)

  • Gail A. Wicks (a1), Paul T. Nordquist (a1), Gordon E. Hanson (a1) and John W. Schmidt (a2)

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