• A.M. Ananda kumar
• S.Kiruthika
• P. Sathishkumar

The present study was investigated to determine the effects of some common weeds on two agriculturally important crops Zea mays L. and Vigna radiata (L.) Wilczek. The weeds, Cynodon dactylon, Cyperus rotundus, Parthenium hysterophorus and Datura metel were taken. The viable seeds of crops such as Zea mays and Vigna radiata were taken and soaked in definite time intervals in water extract of weeds. The seeds were allowed to grow and finally the observations were carried out in various parameters. The observed data includes the germination percentage, Shoot length, root length and seedling length. The data represented the seeds are much affected due to allelochemicals found in weeds. The weed Cyperus rotundus affected the host plant Maize and reduces the root length considerably. Similarly the crop Vigna radiata was much affected by the weed Datura metel which reduces the root length considerably.

Allelopathy, weeds, Zea mays, Vigna radiata

"Allelopathic effect of some common weeds on two important crops Zea mays L. and Vigna radiata (L.) Wilczek.", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 12, page no.291-295, December-2018, Available :http://www.jetir.org/papers/JETIR1812942.pdf

"Allelopathic effect of some common weeds on two important crops Zea mays L. and Vigna radiata (L.) Wilczek.", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 12, page no. pp291-295, December-2018, Available at : http://www.jetir.org/papers/JETIR1812942.pdf