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Pakistan Journal of Biological Sciences
Year: 2001  |  Volume: 4  |  Issue: 4  |  Page No.: 446 - 450

Allelopathic Potential of Anagallis arvensis L. : A Cosmopolitan Weed

Zenab Rebaz, S. Shahid Shaukat and Imran A. Siddiqui    

Abstract: Effect of Anagallis arvensis L. on seed germination and early seedling growth of six test species was examined. Aqueous extract of A. arvensis inhibited germination, root and shoot growth of all the six test species. The species exhibited differential response to the extract. Germination was reduced by the shoot extract in the order: pearl millet > mustard > carrot > turnip > wheat = corn. Decaying A. arvensis in sandly-loam soil at 5, 10 and 20 g / kg soil substantially inhibited germination and seedling growth of pearl millet at all the dosages. Bioassay of the extract of A. arvensis revealed two zones of inhibition at Rf values 0.8-0.9 and 0.9-1.0. Chromatography for the phenolics revealed the presence of three phenolic acids: salicylic acid, cinnamic acid and caffeic acid.

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