engleski

Allelopathic effect of scentless mayweed and field poppy on seed germination and initial growth of winter wheat and winter barley

The allelopathic effect of water extracts from fresh roots, stems and leaves of scentless mayweed (Tripleurospermum inodorum (L.) C.H. Schultz) and field poppy (Papaver rhoeas L.) on germination and initial development of winter wheat and winter barley was studied under laboratory conditions. Results showed that all water extracts significantly reduced germination of wheat and barley. The highest reduction was observed with leaf extract of T. inodorum and was 97.3% and 66.8% for wheat and barley, respectively. Weed extracts showed depressive effect on root and shoot length and fresh weight of test plants. Maximum reduction of root and shoot length was recorded with T. inodorum leaf extract. Inhibitory effect was dependent on donor and recipient species and weed plant part. On average, T. inodorum extracts had higher inhibitory effect than P. rhoeas extract. When comparing weed plant parts, leaves were the most allelopathic, followed by stems and roots. Winter wheat showed greater sensitivity to weed extracts than winter barley.

allelopathy ; field poppy ; scentless mayweed ; water extracts ; winter wheat ; winter barley

nije evidentirano