Rakha,Mohamed Khafagy Abd El-Rahim. <br/><br/>
Genetic analysis to the efficiency of rhizobium biochemical mutants on the nitrogen fixation in Phaseolus vulgaris  [microform] /  
 التحليل الوراثي لكفاءة الطافرات البيوكيماوية للرايزوبيوم علي تثبيت الأزوت الجوي في الفاصوليا. 
Mohamed Khafagy Abd El-Rahim Rakha. 
 -  1995. 
 - 132,4  leaves :  ill. ;  30 cm. 
<br/><br/>Thesis (M.S. )-- El-Mansour University, 1995. 
<br/><br/>Includes bibliographical reference (leaves 116-132) 
<br/><br/><br/>Microfiche. <br/>Cairo, Egypt : <br/>ASUNET, <br/>3 microfiche : negative. 
<br/><br/><br/>Summary in Arabic. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Beans.<br/>Rhizobium--Genetics.<br/>Leaves--Effect of nitrogen on.<br/>Nitrogen--Fixation.