الفهرس 
Allelopathic activityOnly 14 pages are availabe for public view
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Abstract
This study was carried out at the Experimental Farm of Rice Research and Training Center, Sakha, Kafr ElSheikh, Egypt and greenhouse of University of Arkansas, Department of Agriculture, Stuttgart, USA. The cultivations were carried out in a clay soil type along summer season (May of 2009 and 2010) under conditions of no rainfall and humidity 70-80 %. Three cytoplasmic male sterile lines wild abortive type (WA); IR69625A, IR70368A and IR58025A were tested with their testers to determine the restoring fertility and allelopathic activity. These particular lines were chosen based on studies of heterosis and combining ability of three CMS lines and 10 Egyptian testers for screening against the barnyardgrass (Echinoclola crus-galli) to choose appropriates parents for the proposed study.