Allelopathic effect of different concentration of water extract of Argemone mexicana L. on seed germination and seedling growth of Sorghum bicolor (L.) Moench

Allelopathic Effect of Aqueous Extract of Argemone mexicana L on Germination and Growth of Brachiaria dictyoneura L and Clitoria ternatea L

“…Elsewhere, other researchers found that cinnamic acid was an allelochemical responsible for allelopathy for root growth in cucumber [32] and shoot and root length of cabbage seedlings [33]. Hence results on seedling growth found in this study conforms to findings reported by Alagesaboopathi [23]; Paul and Begum [24]; Jilani et al [25]; Burhan and Shaukat [21] who reported allelopathic effect of A. mexicana on the growth of tomato, sorghum, lentil, carrot, wheat, mustard, turnip, pearlmillet, corn, blackgram and rapeseed.…”

“…This might have been caused by some of allelochemicals present in leaf and seed aqueous extracts of A. mexicana. These results correlates with studies conducted by Burhan and Shaukat, [21] Paul and Begum [22] and Alagesaboopathi [23] who reported seed germination inhibition of Sorghum bicolor, carrot, wheat, mustard, turnip, pearl-millet, blackgram, rapeseed wheat and corn with increase in A. mexicana leaf and shoot extracts concentration. The germination reductions in these studies were related to the allelopathic potential of A. Mexican.…”

“…Decrease in fresh and dry weight might be attributed to allelochemicals inhibiting protein and carbohydrate synthesis and hence reducing seedling growth [11,16,38]. Similar to our study, Alagesaboopathi [23] also reported the decrease in fresh and dry weights of sorghum upon treatment with different concentrations of A. mexicana leaf aqueous extracts.…”

“…Another study by Paul and Begum [22] indicated that seed germination percentage, root length, shoot length and seedling dry weight of blackgram (Vigna mungo) and rapeseed (Brassica napus) were significantly decreased with the increase of both root and leaf extracts of A. mexicana. Alagesaboopathi [23] also reported that there was decrease in seed germination and inhibition of plumule and radicle length of Sorghum bicolor seedlings with increase in A. mexicana leaf extracts concentration due to allelopathic potentialities. Paul and Begum [24] reported allelopathic effect of A. mexicana on germination and seedling growth of Lentil (Lens culinaris).…”

Allelopathic Effects of <i>Argemone mexicana</i> to Growth of Native Plant Species

“…Moreover, Einhellig and Rasmussen [67] found that decrease in biomass of treated soybean by phenolic acids were associated with reduced chlorophyll content in leaves. Similarly, Alagesaboopathi [65] also reported the decrease in fresh and dry weights of sorghum upon treatment with different concentrations of A. mexicana leaf aqueous extracts. Thus, allelochemicals in A. mexicana may inhibit growth of plants.…”