Ramanathan,Niranjani <br/><br/>
Studies on the downy mildew disease of grape vine caused by plasmopara viticola (berk.&curt.)berl. & de toni. 

 - University of Jaffna 
 - Jaffna:  1984 
 - ix,210p. 
<br/><br/>Thesis 
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<br/><br/><label>Dewey Class. No.: </label>634.82  / RAM