共とも台だい

noun

free stock; compatible rootstock

Horticultural term for a rootstock that is compatible with a scion in grafting. Used in plant propagation contexts.

• この品ひん種しゅには共とも台だいとしてマルバカイドウがよく使つかわれる。

  For this variety, Malus prunifolia is often used as a compatible rootstock.