Usage History of 'allelopathy'

The following chart shows how frequently 'allelopathy' appeared in printed materials over time. For example, the word 'allelopathy' occurred 2 times in books in 1848 and 3,921 times in 2008. From 1848 to 2008, the word 'allelopathy' was used a total of 60,641 times in books scanned by Google. See Reference: Google Ngram project.

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