The influence of different fruit thinning products on productivity and quality of ‘Fuji Kiku’variety'

Abstract

The study subject was Fuji Kiku apple variety grafted on M9.To study thinning of apple fruitswere experimented the following variants:1. Control –without treatment; 2. Manual thinning; 3. Ger ATS LG, 12 L/ha; 4. Geramid New, 1,5 L/ha; 5. Dirager, 0,3 L/ha; 6. Goltex 700SC, 3,5 L/ha; 7. Dira Max LG, 2,5 L/ha; 8. Gerba 4 LG,2,5 L/ha. It was established that, the good effect of thinning was after application withGer ATS LG, 12 L/ha. In the case of no favorable conditions during the previous treatment, mustto utilize Goltex 700SC, 3.5 L/ha, Dira Max LG, 2.50 L/ha and Gerba 4 LG in the dose 2.5 L/ha, when the size of the central flower of the inflorescence has a diameter of 10-15 mm.It not recommended for the Fuji Kiku variety to spraywithNAD (Geramid New) and ANA (Dirager), because formed a large “pygmy”fruits.