Douglas A. Cox
	
					
Douglas A. Cox
						
	
	University of Massachusetts
	
	211 French Hall
	
	Amherst, 
	MA
	USA
	1003
	
	Papers:
	 
	Calcium Deficiency in Marigold 
	
	 
	Manganese Toxicity in Marigold as Affected by Calcium 
	

