such as the harvest through a stage of growth, such as seed state germination, seedling from the plant the target process up to, and to provide a technique for non-contact-destructive individuals management (such as ID information management) can be achieved. This tag (IC tag plants) 1 includes an antenna section 3, an IC chip 4, the waterproof of the main body part 2 that covers them, a main body portion 2, a shaft portion extending in the longitudinal direction, and a one or more protrusions 5 extending from the shaft portion in a lateral direction, the protrusion 5 has a seed deposition section 6 for attaching and holding a seed 10 plants, with the germination and growth of seeds 10 projections It is a structure in which the roots were easily tangled in section 5.植物のタネの状態から発芽・育苗などの生育の段階を経て収穫などに至るまでの過程を対象として、非接触・非破壊的な個体管理(ID情報管理など)が実現できる技術を提供する。本タグ(植物用ICタグ)1は、アンテナ部3と、ICチップ4と、それらを被覆する防水性の本体部2と、を有し、本体部2は、縦方向に伸びる軸部と、軸部から横方向に伸びる1つ以上の突起部5とを有し、突起部5は、植物のタネ10を付着・保持させるタネ付着部6を有し、タネ10の発芽と成長に伴い突起部5に根が絡みやすくした構造である。
