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Allelopathic Effects of Celosia argentea L. Leaf Extracts on Crop Plant Seed Germination

P. Saritha and A. Sreeramulu
Department of Botany, S V University, Tirupati, AP 517 502.
Abstract—Cocks comb ( Celosia argentea L.) is one of the most famous allelopathic plants. The present study was conducted to investigate the allelopathic effects of different concentrations of Celosia argentea L weed on seed germination and seedling growth of surrounding crop plants Sorghum bicolor , Phaseolous aureus,Arachis hypogaea , Dolichos lab lab and Vigna unguiculata . The average growths of plumule and radicle was measured and compared. 1%, 2%, 3% and 5% aqueous extracts of leaf inhibited seed germination and seedling growth of crop plant seeds. The percentage seed germination and seedling growth of crop plant seeds decreased with concentration of leaf extracts used. The reduction of germination percentage may be due to the presence of allelochemicals of Celosia argentea L. which is reported to contain hyaluronic acid, celosianin, betanin and isocelosianin. Among the five crop plant seeds, C. argentea leaf extract showed more inhibitory effect on growth of seedlings of groundnut (8.96%).

Index Terms—Celosia argentea L., Weed, Allelopathy, Allelochemicals, Aqueous leaf extract

Cite: Mohammed Saleh Al. Ansari, "Design of Sustainable Chemical Processes and Supply Chain Management System," International Journal of Life Sciences Biotechnology and Pharma Research, Vol. 2, No. 1, pp. 56-64, January 2013.
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