El-Akhal, Ibrahim El-Desouky Mohamed. <br/><br/>
Effect of environmental conditions and weed control treatments on onion crop  [computer file]/ 
 تأثير الظروف البيئية ومعاملات مقاومة الحشائش على محصول البصل. 
Ibrahim El-Desouky Mohamed EI-Akhal. 
 -  2004. 
 - Computer laser optical disk;  4 3/4in. 
<br/><br/>Thesis (Ph.D.) -- Cairo University, 2004. 
<br/><br/>Includes bibliographical reference (leaves 132-156) 
<br/><br/><br/>Systems requirments:Adobe Reader. 
<br/><br/><br/>Summary in Arabic. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Onions--Yields.<br/>Onions--Weed control.<br/>Onions--Composition.<br/>physicochemical properties.