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Pharmacognosy Res. 2012 Jul;4(3):166-9. doi: 10.4103/0974-8490.99082.

Allelopathic effect of Ashwagandha against the germination and radicle growth of Cicer arietinum and Triticum aestivum.

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  • 1Division of Pharmacognosy, Bengal School of Technology (A College of Pharmacy), Delhi Road, Sugandha, Hooghly, West Bengal, India.



Ashwagandha (Withania somnifera) is an important medicinal plant in Indian traditional system of medicine and traditionally has been used for several medicinal purposes in the Indian subcontinent.


The present study was aimed at the evaluation of allelopathic effect of hydroalcoholic extract of ashwagandha against germination and radicle growth of Cicer arietinum and Triticum aestivum seeds.


The extract at different concentrations was incubated in controlled conditions with the surface sterilized seeds of C. arietinum and T. aestivum and observed periodically for seed germination and radicle growth to assess the allelopathic behavior.


The extract mainly at higher concentrations demonstrated promising allelopathic potential by significantly affecting seed germination and radicle elongation of both C. arietinum and T. aestivum in a concentration dependent manner. T. aestivum was found to be more sensitive than C. arietinum.


The present study demonstrated remarkable allelopathic potential of ashwagandha against the test seeds. The effect was plausibly due to the alkaloid and withanolide contents of ashwagandha.


Allelopathic; Cicer arietinum; Triticum aestivum; ashwagandha; withanolides

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