Also found in: Dictionary, Encyclopedia, Wikipedia.


A biological phenomenon in him which one organism produces secondary metabolites that have either beneficial (positive) allelopathy or detrimental (negative) allelopathy on target organisms.

Examples of organisms displaying allelopathy
Plants, algae, bacteria, coral and fungi. These interactions influence species distribution and abundance within plant communities and ecosystems.

allelopathy (l·lēˑ·l·pa·thē),

n the system of natural defenses that protects one plant species from others around it.
Mentioned in ?
References in periodicals archive ?
The potential of allelopathy as a tool for weed management in crop fields.
Herbivore exclusion drives the evolution of plant competitiveness via increased allelopathy.
Weeds are one of the chief biotic menaces which interfere with cotton field through competition and allelopathy and eventually cause significant reduction in crop produce [2].
Allelopathy of buckwheat: assessment of allelopathic potential of extract of aerial parts of buckwheat and identification of fagomine and other related alkaloids as "allelochemicals.
Various practices such as cover crops, crop rotations, mulching and the mix application of the allelochemicals with the herbicides can be used as effective tools in controlling weeds through Allelopathy.
The associated suppression of plant growth at the base of trees is more likely due to allelopathy than water shortage given the amount of water delivered to the base of trees via stemflow.
The work of students in her laboratory led to important discoveries about allelopathy, the release of chemicals by one plant that affects another; the identification of a plant new to science, the Fame Flower (Talium calcaricum); the discovery of a once-thought extinct species, the Tennessee Coneflower (Echinacea tennesseensis), and numerous life history studies on glade endemics.