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	Coryphée - FRC Randwijk
	
	
	
	
	
	
	
	
	
	
	
	
	
	
	
	
	











	


	
	
	
	









	

				
	

		

		
Coryphée

        
		
            
            

                
In May 2022, a row of 117 trees of the apple variety Zouk32 (c.o.v.) – Coryphée® was planted at FRC Randwijk. Coryphée is a cross between Rubinstep and Nicoter. It is a bi-colored apple with a ripening time approximately one week after Gala. According to the breeder, this variety has high tolerance to scab and powdery mildew, a good production level, and colors easily (source: johan-nicolai.com).


The purpose of these trees is to monitor the performance of this variety under Dutch growing conditions and to demonstrate it to visitors at FRC Randwijk.


In March 2023, a pruning demonstration was conducted with three treatments:


    

  1. All one-year-old shoots were topped, and all older wood was lightly pruned. Scaffold branches were pruned to a slender shape.
    2. 

  2. All one-year-old shoots were left long at the base. Scaffold branches were pruned, but all lateral wood on the scaffolds was left long.
    3. 

  3. Minimal pruning was applied. Everything was left long for maximum production.
    4. 



            

        



        

            
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