What plant growth hormone is used for strawberry flower bud differentiation?

Strawberry flower bud differentiation and fertilization management are very important to improve yield and quality.
Commonly used chemicals include Gibberellic Acid (GA3), Brassinolide (BR) and Difenoconazole.

Daily fertilization methods include basal fertilizer, top dressing, foliar spraying, etc.  Reasonable fertilization and chemical treatment can promote flower bud differentiation and improve yield and quality.  Pay attention to the PGR type,use time, frequency and dosage of fertilization. 
Strawberry is a widely cultivated fruit, and its flower bud differentiation and fertilization management are very important to improve yield and quality.  The following will introduce in detail the commonly used chemicals and daily fertilization methods for strawberry flower bud differentiation.

1. Commonly used chemicals for strawberry flower bud differentiation 
Gibberellic Acid (GA3):
Gibberellic Acid (GA3) is a plant growth regulator that can promote strawberry flower bud differentiation. Two weeks before the differentiation of strawberry flower buds, spraying strawberry leaves with 25~50ppm Gibberellic Acid (GA3) solution can induce early differentiation of flower buds. It should be noted that the concentration and frequency of spraying of Gibberellic Acid (GA3) need to be adjusted appropriately according to the specific situation to avoid side effects. 

Brassinolide(BR):
Brassinolide(BR) is a plant growth promoter that can improve the stress resistance of strawberries and promote flower bud differentiation. Before the differentiation of strawberry flower buds, spraying the strawberry leaves with 0.02ppm Brassinolide (BR) solution can promote the differentiation of flower buds and increase the fruit setting rate. 

Difenoconazole: 
Difenoconazole is a broad-spectrum fungicide that can control a variety of strawberry diseases and also promote flower bud differentiation. Before strawberry flower buds differentiate, spraying strawberry leaves with 10~20ppm Difenoconazole solution can promote flower bud differentiation and increase yield and quality.