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Effects of herbicides on three vesicular-arbuscular fungi associated with winter wheat (Riticum aestivum L.)

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Summary

We studied the effects of field application rates of four herbicides (Avenge, Ceridor, Dicurane, and Harrier) on spore germination and infection of wheat roots by three species of Glomus grown under conditions of low P availability. Low concentrations of Ceridor (bifenox, mecoprop) and Harrier (mecoprop, ioxynil, clopyralid) inhibited spore germination while higher concentrations were stimulatory. Avenge (difenzoquat methyl sulphate) prevented spore germination completely, while Dicurane (chlortoluron) had no effect. The herbicide applications had no significant effect on the infection rates of any of the three fungi except Harrier on G. geosporum. The herbicide treatments did, however, affect plant growth and ear yields. Ceridor and Harrier increased ear yields, while Dicurane showed marked phytotoxic effects.

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Authors and Affiliations

  1. Biological Laboratory, University of Kent, CT2 7NJ, Canterbury, Kent, UK

    J. C. Dodd & P. Jeffries

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  1. J. C. Dodd
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  2. P. Jeffries
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Dodd, J.C., Jeffries, P. Effects of herbicides on three vesicular-arbuscular fungi associated with winter wheat (Riticum aestivum L.). Biol Fert Soils 7, 113–119 (1989). https://doi.org/10.1007/BF00292568

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  • DOI: https://doi.org/10.1007/BF00292568

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