Abstract
Foliar applications of the plant growth regulators (PGRs) flurprimidol and mefluidide suppressed shoot elongation and regrowth and enhanced shoot injury caused by selected herbicides in Canada thistle (Cirsium arvense L.). Flurprimidol stimulated movement of 14C-sucrose from leaves to roots. However, the stimulation was nullified when glyphosate, chlorsulfuron, or clopyralid was applied to foliage 1 week after application of the PGR. Herbicide-induced root injury was not enhanced by PGR application but these PGRs may be useful in decreasing weed competition among crops not similarly inhibited.
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Tworkoski, T.J., Sterrett, J.P. Phytotoxic effects, regrowth, and 14C-sucrose translocation in Canada thistle treated with mefluidide, flurprimidol, and systemic herbicides. J Plant Growth Regul 11, 105–111 (1992). https://doi.org/10.1007/BF00198022
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DOI: https://doi.org/10.1007/BF00198022