Effects of pruning, bud removal and benzyladenine application on branch development of two-year-old apple nursery trees on dwarfing rootstocks [Japanese]

摘要

In Europe changes have been made recently in apple nursery tree structure. In Japan, one-year-old trees which have no branches on the stem (whips) have been used for planting high density apple orchards. But they are not suitable for training into spindle bush tree and tend to remain juvenile.