Allelopathic effects of extracts and plant residues of wild oat (Avena fatua) and rye (Secale cereale L.) on some germination parameters of wheat crop (Triticum aestivum) in the greenhouse condition

ABSTRACT: experimental to investigate of Allelopathic effects the extracts and plant residues of wild oat ( Avena fatua) and rye( Secale cereale L.) on some germination parameters of wheat crop ( Triticum aestivum) in the Pot was conducted in the form of a randomized complete blocks design with three replications in 2011 in the weeds laboratory of Mohagegh Ardabili University, the studied treatments included of: plant debris (Control without crop residues, rye seed powder, rye shoot powder, oats seed powder, oats shoot powder) Management of mulch: M1-First sowing wheat, then adding powdered plant residues on wheat and finally add plant debris on the soil, M2-First sowing wheat, then add soil on wheat, and finally adding plant debris on the soil, M3-First sowing of wheat in a pot, then add soil on wheat, finally adding plant residues on the soil in addition to irrigation, using extracts of plant debris that it’s plant debris powder has been used as a mulch in the pot. The results showed that the effect of plant debris and mulch management has a significant effect on all traits. Between studied treatments, rye seed remains in the first and third management and the oat seed remains in the second administration, showed the highest inhibitory effect.