noun Botany.

  1. suppression of growth of a plant by a toxin released from a nearby plant of the same or another species.


  1. the inhibitory effect of one living plant upon another by the release of toxic substances

  1. The inhibition of growth in one plant species by chemicals produced by another. For example, other plants will often not grow underneath black walnut trees, since these trees produce juglone, a chemical inhibiting plant respiration.

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