Allelopathic Effect of Leaves of Invasive tree Broussonetia papyrifera against some crop plants

Anjana Negi, Daizy R. Batish, Harminder Pal Singh, R. K. Kohli

Abstract


Allelopathic effect of aqueous extracts of leaves of Broussonetia papyrifera (L.) Vent. was studied on germination and seedling growth of Triticum aestivum L. and Oryza sativa L. under laboratory conditions. The seed germination, seedling length, seedling dry weight and total chlorophyll content were reduced with the increasing treatment of concentration (0.5, 1, 2 and 4%) of B. papyrifera leaf extract as compared to the control. The inhibitory effect was more pronounced on the root length than on coleoptile length. The extracts were rich in phenolic compounds, which are the ubiquitous allelochemicals and often implicated in allelopathy. The study concludes that B. papyrifera exhibits allelopathy through the release of phenolics from its leaves. 


Keywords


allelochemicals; aqueous extract; phenolics.

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DOI: https://doi.org/10.21746/aps.2016.01.003

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