Interactions of Herbicide Doses and Application Time on Sorghum halepense Control in Maize (Zea mays)

Document Type : Research Paper

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Abstract

A field experiment was conducted to determine the interaction effects of herbicide timing and doses on the control of Sorghum halepense in maize. The experiment was a split plot in randomized complete block design (RCBD) with three replications. Main plots were herbicide doses (0, 40, 60, 80, 100 g.ae of nicosulfuron) and sub-plots comprised herbicide timing (maize growth stages: 2-4 leaves, 4-6 leaves and 6-8 leaves). Standard dose response model was used to describe the relationship between weed biomass and herbicide doses at each herbicide application time. Estimated parameters showed that herbicide application delay increased U, L, ED50, ED90 parameters linearly. The highest yield of maize (20478.8 kg/h) was obtained by 2.5 lit/ha herbicide applied at 2-4 leaves of maize growth stage. Recommended dose of herbicide resulted in 12108.74 kg/h maize yield when it was applied at 6-8 leaves maize growth stage. In summary, 1.5 lit/ha herbicide applied at 2-4 leaves growth stage of maize gave acceptable control and decreased S. halepense biomass from 144.9 to 41.2 g/m2. The respected amount of weed biomass was not able to compete with maize and make damage. Results of the current study can be used in S. halepense management programs in maize fields.

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References

Baskin, C. and Baskin, J. 2014. Seed ecology, biolgeography, and evolution of dormancy and germination. Second edition. 87-100.
Bruce, J.A.B.C., Penne, D. and Kells, J.J. 1996. Effect of growth stage and environment onfoliar absorption,translocation,metabolism andactivity of nicosulfuron in quacggrass. Weed Science. 44: 447-454.
Cox, W.J.R., Hahn, R. and Stachowski, P.J. 2006. Time of weed removed with glyphosate affects corn growth and yield components. Agronomy Journal. 98: 349-353.
Dexter, A.G. 1993. Herbicides spray drift. North Dakota Press. 3: 1-13.
Dennis, B. Johnson and Jason K. Norsworthy. 2013. Johnsongrass (Sorghum halepense) management as influenced by herbicide selection and application timing. Weed Technology. 28: 142-150.
Dashti, H., Rahiman, H. and Oveisi, M. 2014. Effect of Cropping Type, Land Covered with Wheat Residue and without Residue on Emergence Pattern of Seedling and Rhizome Sprouting Shoot of Sorghumhalepense L. in Karaj Region. Iranian society of weed science. 10: 192-200.(in Persian).
Fontem Lum, A., Chikoye, D. and Adesyan, S.O. 2005. Effect of Nicosulfuron dosages and timing on the post emergence control of Cogongrass (Imperata cylindica) in corn. Weed Technology. 19: 122-127.
Gower, S.A., Loux, M.M. and Cardina Harrison, S.K. 2002. Effect of planting date, residual herbicide, and postemergence application timing on weed control and grain yield in glyphosate-tolerant corn (Zea mays). Weed Technology. 16: 488–494.
Ghosheh, H.Z., Holshouser, D.L. and Chandler, J.M. 1996. Influenceof density on johnsongrass (Sorghum halepense) interference in field corn Zea mays. Weed Scieance. 44: 879–883.
Hakansson, S. 2003. Weeds and weed management on arable land. An ecological approach. CABI Publishing. 83: 757-765.
Holm, L.G., plunkneet, D.L., Pancho, V. and Herberger, J.P. 1977. The world's worst weeds. Distribution and Biology. University Press of Hawaii, Honolulu. 3: 54-61.
Horowitz, M. 1972. Spatial growth of Sorghum halepense. Weed Research. 13: 200-208.
James, T.K., Rahman, A. and Trolove, M. 2006. Optimal timing for post emergence application of nicosulfuron for weed control in maize. New Zealand plant protect. 59: 250-254.
McWhorter, C.G. and Jordan, T.N. 1976. The effect of light and temperature on the growth and development of Johnsongrass. Weed Science. 45: 447-554.
Najafi, H., Baghestani, M.A. and Zand, E. 2006. Weeds of Iran Biology and Management. Research Institute of Plant Pests and Diseases. 559Pp.(in Persian).
Rao, V.S. 2000. Principles of weed science. Science publishers. USA. (2nd ed.). 451 Pp.
Retta, A., Vanderlip, R.L., Higginns, R.A., Shier, L.J.M. and Feyerherm, A.M. 1991. Suitability of corn growth models for incorporation of weed and insect stresses. Agronomy Journal. 83: 757-765.
Robinson, D.K., Monks, D.W., Schulthesis, J.R. and Worsham, A.D. 1993. Sweet corn (Zea mays) cultivar tolerance to application timing of nicosulfuron. Weed Technology. 7: 840–843.
Scursoni, J.A., Catanzaro, A.M., Catanzaro, M.P., Quiroga, J. and Goldar, F. 2011.  Evaluation of post-emergence herbicides for the control of wild oat (Avenafatua L.) in wheat and barley in Argentina. Crop Protection. 30: 18 –23.
Streibig, J.C. 1980. Models for curve fitting herbicide dose response data. Acta Agricultural Scandinavia. 30: 59–64.
Iranian Journal of Weed Science
Volume 14, Issue 1
September 2018
Pages 1-10

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