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Effect of MON-12037 on Purple (Cyperus rotundus) and Yellow (Cyperus esculentus) Nutsedge

William K. Vencill, John S. Richburg, III, John W. Wilcut and Larry R. Hawf
Weed Technology
Vol. 9, No. 1 (Jan. - Mar., 1995), pp. 148-152
Stable URL: http://www.jstor.org/stable/3987836
Page Count: 5
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Effect of MON-12037 on Purple (Cyperus rotundus) and Yellow (Cyperus esculentus) Nutsedge
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Abstract

Greenhouse studies were conducted to determine the response of purple and yellow nutsedge to selective soil placement of 5 cm of soil treated with MON-12037 above and/or below the nutsedge tubers. MON-12037 at 53 g/ai ha applied as a foliar, soil, or foliar + soil application also were evaluated. MON-12037 placement above, below, or above + below the nutsedge tuber decreased shoot number, shoot dry weight, shoot regrowth dry weight, and root-tuber dry weight production in both species, 30 and 60 d after treatment. MON-12037 applied as a foliar, soil, and foliar + soil treatment was effective in reducing purple nutsedge shoot regrowth dry weight to less than 5% of the non-treated control. Yellow nutsedge shoot regrowth dry weight from the foliar + soil and soil-only applications was less than 1% of the non-treated control.

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