cleft grafting
A horticultural technique where a scion is inserted into a cleft cut in the stock. Used in fruit tree propagation.
リンゴの木を増やすために枝接ぎを行った。
We performed cleft grafting to propagate the apple tree.
Compound of 枝 (eda, 'branch') and 接ぎ (tsugi, 'grafting'), from the verb 接ぐ (tsugu, 'to graft').