PROBLEM TO BE SOLVED: To effectively produce a cutting ear or a scion that has high rooting rate and that grows promptly.SOLUTION: A method of producing a cutting ear or a scion according to the present embodiment includes the steps of: cutting out from a mother stock a cutting ear 1 or a scion whose top side and bottom side are cut-off in a method of producing a cutting ear to be used in a cutting or a scion to be used in a grafting and forcibly injecting an injection liquid 8 into the duct of the cutting ear 1 or the scion in a state where the upper or lower section of the cutting ear 1 or the scion that has been cut-off is immersed in the injection liquid 8, by suctioning from the other section.COPYRIGHT: (C)2016,JPO&INPIT【課題】発根率が高く成長が促進される挿し穂又は接ぎ穂を効率良く製造する。【解決手段】本発明の実施形態に係る挿し穂又は接ぎ穂の製造方法は、挿し木に用いる挿し穂又は接ぎ木に用いる接ぎ穂を製造する方法において、母株から上側及び下側が切断された挿し穂1又は接ぎ穂を切り出す切り出し工程と、切り出した挿し穂1又は接ぎ穂の上側又は下側の切口を注入液8に浸漬した状態で、他方の切口から吸引することで、注入液8を挿し穂1又は接ぎ穂の導管内に強制的に注入する注入工程と、を備える。【選択図】図1