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Wild radish (Raphanus raphanistrum) interference in wheat

  • Seyed V. Eslami, Gurjeet S. Gill (a1), Bill Bellotti (a1) and Glenn McDonald (a2)

Wild radish is a major weed of field crops in southern Australia. The effects of various densities of wild radish and wheat on the growth and reproductive output of each other were investigated in field studies in 2003 and 2004. The experiments were established as a factorial combination of wheat (0, 100, 200, and 400 plants m−2) and wild radish (0, 15, 30, and 60 plants m−2) densities. The effect of wild radish density on wheat yield loss and wild radish seed production were described with a rectangular hyperbola model. The presence of wild radish in wheat reduced aboveground dry matter, leaf-area index (LAI), and grain yield of wheat, and the magnitude of this reduction was dependent on weed density. Increasing the density of wheat substantially reduced the adverse effects of wild radish on wheat. As crop density increased, wild radish dry matter, LAI, and seed production per unit area decreased. The maximum seed production of wild radish was achieved at its highest density (60 plants m−2), and was 43,300 and 61,200 seeds m−2 for the first and second year, respectively. The results indicated that higher densities of wheat were able to suppress seed production of this weed species. From a practical viewpoint, this study shows that increased wheat density in the range of 200 to 400 wheat plants m−2 can reduce wild radish seed production and also give some reduction in crop yield loss, and could be an important component of an integrated weed management program.

Corresponding author
Corresponding author. University of Adelaide, Roseworthy Campus, SA 5371, Australia
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C. N. Bensch , M. J. Horak , and D. Peterson 2003. Interference of redroot pigweed (Amaranthus retroflexus), Palmer amaranth (A. palmeri) and common waterhemp (A. rudis) in soybeans. Weed Sci 51:3743.

G. R. Code and W. Donaldson 1996. Effect of cultivation, sowing methods and herbicides on wild radish populations in wheat crops. Aust. J. Exp. Agric 36:437442.

R. A. Cousens 1985. An empirical model relating crop yield to weed and crop density and a statistical comparison with other models. J. Agric. Sci 105:513521.

R. A. Cousens , J. W. Warringa , J. E. Cameron , and V. Hoy 2001. Early growth and development of wild radish (Raphanus raphanistrum L.) in relation to wheat. Aust. J. Agron. Res 52:755769.

G. S. Gill and J. E. Holmes 1997. Efficacy of cultural control methods for combating herbicide-resistant Lolium rigidum . Pestic. Sci 51:352358.

A. Hashem , D. Bowran , and T. Piper 2001. Resistance of wild radish (Raphanus raphanistrum) to acetolactate synthase inhibiting herbicides in the Western Australia wheat belt. Weed Technol 15:6874.

M. J. Kropff and L. A. P. Lotz 1992. Systems approaches to quantify crop-weed interactions and their application in weed management. Agric. Syst 40:265282.

D. Lemerle , R. D. Cousens , G. S. Gill , J. S. Peltzer , M. Moerkerk , C. E. Murphy , D. Collins , and B. R. Cullis 2004. Reliability of higher seeding rates of wheat for increased competitiveness with weeds in low rainfall environments. J. Agric. Sci 142:395409.

R. A. Massinga , R. S. Currie , M. J. Horak , and J. Boyer Jr. 2001. Interference of Palmer amaranth in corn. Weed Sci 49:202208.

R. W. Medd , B. A. Auld , D. R. Kemp , and R. D. Murison 1985. The influence of wheat density and spatial arrangement on annual ryegrass, Lolium rigidum Gaudin, competition. Aust. J. Agric. Res 36:361371.

T. G. Reeves , G. R. Code , and C. M. Piggin 1981. Seed production and longevity, seasonal emergence, and phenology of wild radish (Raphanus raphanistrum L). Aust. J. Exp. Agric 21:524530.

J. C. Streibig , J. H. Combellack , G. H. Pritchard , and R. G. Richardson 1989. Estimation of thresholds for weed control in Australian cereals. Weed Res 29:117126.

S. R. Walker , R. W. Medd , G. R. Robinson , and B. R. Cullis 2002. Improved management of Avena ludoviciana and Phalaris paradoxa with more densely sown wheat and less herbicide. Weed Res 42:257270.

J. Weiner , H. W. Griepentrog , and L. Kristensen 2001. Suppression of weeds by spring wheat increases with crop density and spatial uniformity. J. Appl. Ecol 38:784790.

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Weed Science
  • ISSN: 0043-1745
  • EISSN: 1550-2759
  • URL: /core/journals/weed-science
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