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	Thinning with 6-BA by Conference - FRC Randwijk
	
	
	
	
	
	
	
	
	
	
	
	
	
	
	
	
	
	











	


	
	
	
	









	

				
	

		

		
Thinning with 6-BA by Conference

        
		
            
            

                
In 2025, another thinning trial with 6-BA is being conducted on the trial orchard with Conference. This trial follows up on previous trials from 2022, 2023, and 2024. Over multiple years, a trend has been observed in which 6-BA has only a mild thinning effect on Conference, but does have a positive impact on fruit size. However, there is a risk of increased russeting.


In 2024, it was found that for Conference, application of BA in 1000 liters per hectare did not result in additional russeting, whereas an application in 300 liters of water did. Caution remains necessary, as the exact cause is unclear. It is often a complex interplay of factors, and conducting multi-year trials is the only way to get more clarity.


To determine a good and safe application strategy for BA on Conference, in 2025 these two spray volumes are again compared, as well as three different products: MaxCel, Globaryll, and Exilis.


            

        



        

            
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