Green Global
Foundation   Journal
...an emerging window for scientific research and publication across the globe

ALLELOPATHIC EFFECTS OF FIVE SELECTED WEED SPECIES ON SEED GERMINATION AND SEEDLING GROWTH OF CORN (Pages : 13 - 18)

An investigation was carried out in typical maize growing sandy loam soil at the Agronomy Laboratory. Bangladesh Agricultural University, Mymensingh during March to August, 2000. The allelopathic effects of five weed species viz. Polygonum hydropiper L. (W1), Amaranthus spinosus L. (W2), Chenopodium album L. (W3), Cyperus rotundus L. (W4) and Imperata cylindrica L. (W5) on corn (cv. Barnali) seed germination, growth and development were studied. The trial included dried plant parts of five selected weeds (the whole plant, stem, leaf, root and five weed mixture) and weeds aqueous extract (whole plant, stem. leaf, root and five weed mixture) in Petridishes at laboratory condition. These five weed species exhibited inhibition of seedling height and radicle length. Imperata cylindrica affected the seedling height and seedling dry matter production severely than others. Radicle length is affected by Amaranthus spinosus. On the other hand, germination, seedling growth and dry matter production affected maximum by dried mass of stems of five weed species. The results demonstrated the allelopathic potential of five weed species and suggested that those weed species may affect corn seedling growth and development due to the inhibitory effect of allelochemicals, which are present in the dried parts and aqueous extracts of weed. Download