Thidiazuron with Mineral Oil as Alternative Bud Break Promoter for Apple Trees

Aims: This work aims to evaluate the efficiency of Revent® 500 SC (Thidiazuron) concentrations as a bud breaker promoter in apple trees, cv. Maxi Gala and Supreme Fuji, through phenology, sprouting buds, fruit set production per plant.
 Place Duration Study: The experiments were carried out southern Brazil, municipality Caçador / SC, during seasons from 2017 2019, cultivars Fuji Suprema Marubakaido M9.
 Methodology: treatments 1. Control (without application); 2. Mineral Oil (MO) 3.5% + Hydrogenated Cyanamide (HC) 0.35%; 3. MO HC 0.5%; 4. Thidiazuron (TDZ) 0.005%; 5. TDZ 0.01%; 6. 0.015%; 7.MO 0.02%; 8.MO 0.025%, applied stages B C. Several variables evaluated such axillary terminal set, plant average mass.
 Results: All with breakers advanced phenological relation control three years. In all superior control. showed higher buds 2017/18 compared standard hydrogenated cyanamide. production, treatment 0.02% was than other 2018/19 2019/20 seasons, both cultivars. associated mineral oil is efficient inducing ‘Maxi Gala’ ‘Fuji Suprema’ trees can be used recover sprouts previous