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Root Exudation of Herbicides by Woody Plants: Allelopathic Implications

Nature volume 225, page 291 (1970)Cite this article

Abstract

MANY endogenous substances are exuded by plant roots1. The release from one plant of substances which have an inhibitory influence on another plant (allelopathy) has been recognized as an important factor in plant/plant interactions in agricultural practices2 and also seems to have considerable ecological importance in vegetational composition3. Root exudation of exogenous compounds has also been shown to affect neighbouring plants4–6. In 1963, the known exudation of regulating substances from roots was limited to two families of compounds, methoxyphenylacetic acids and chlorinated benzoic acids5. Since then the exudation of 2,4-dichlorophenoxy-acetic acid7,8 and picloram9,10, both exceptions to the above classification, has been shown.

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Authors and Affiliations

  1. Department of Forest and Wood Sciences, Colorado State University, Fort Collins, Colorado, 80521

    C. P. P. REID

  2. Plant Sciences Laboratories, Fort Detrick, Frederick, Maryland, 21701

    W. HURTT

Authors
  1. C. P. P. REID
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  2. W. HURTT
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REID, C., HURTT, W. Root Exudation of Herbicides by Woody Plants: Allelopathic Implications. Nature 225, 291 (1970). https://doi.org/10.1038/225291a0

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