Fruit Production in Old-tree-stage of Apple ‘Fuji’ grafted on Dwarf Rootstocks

Puntos clave

• This study aims to evaluate the characteristics, fruit quality, and yield of over 40-year-old apple trees grafted on dwarf rootstocks.
• Investigated tree characteristics, fruit quality, and yield in over 40-year-old grafted apple trees.
• Compared the dwarfing effects of different rootstock varieties.
• Assessed yield efficiency in relation to tree crown area.
• Quality fruit production continued in JM5 and JM7 rootstocks.
• Overall tree yield per tree did not decline, but yield efficiency per crown area decreased.
• Larger tree size reduced the number of fruit-bearing branches in the center of the crown.