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Allelopathy is an interference mechanism based on any direct or indirect effect (primarily inhibitory) by one plant on another through the release of chemicals that escape into the environment (Aldrich and Kremer 1997).

This phenomenon is involved in a wide fields of application:

+ weed management by the use of mulch or cover crops, especially for those practicing direct drilling.

+ Possibility of biological herbicides and insecticides.

+ Opportunity of use of crops having stimulatory allelopathic effect in crop rotation, such the case of rapeseed on barley (Oueslati and Ben-Hammouda, 2006).

+ For the adversely effect of allelopathy (inhibition of germination, growth and development), it influences choice of rotations, by choosing crops with low allelopathic/inhibitory effect as precedent and the most tolerant ones as following crops.

Wish that these informations will be of a certain help.

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How did people first become aware of allelopathy?

People first became aware of allelopathy through observations of the inhibitory effects of certain plants on the growth of neighboring plants. As early as the 4th century BC, Theophrastus documented the effects of walnut trees on nearby plants, suggesting a form of chemical interference. Since then, scientific studies have further elucidated the mechanisms and ecological implications of allelopathy.


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