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1 results

  • Wild Proso Millet (Panicum miliaceum) Interference in Dry Beans (Phaseolus vulgaris)

  • Robert G. Wilson
  • Journal:
    Weed Science / Volume 41 / Issue 4 / December 1993
    Published online by Cambridge University Press:
    12 June 2017, pp. 607-610

  • Effects of proso millet interference with irrigated dry beans were evaluated in Nebraska over a 2-yr period. Dry bean yield reduction ranged from 12 to 31% from a wild proso millet density of 10 plants m-2. As density increased, dry bean yield reduction could be predicted with a rectangular hyperbola regression model. Ten wild proso millet plants m-2 growing with dry beans produced 14 780 to 21 420 seed m-2. Dry bean yields were reduced 41 and 11% in 1990 and 1991, respectively, when wild proso millet removal was delayed 6 wk after dry bean planting. Four weeks of weed-free maintenance were sufficient to provide dry bean yields comparable to plots kept weed free all season.