noun[mass noun] Horticulture
A form of layering in which the branch is potted or wrapped in a moist growing medium to promote root growth.
- This tree can be propagated by air layering or stem cutting.
- The Javanese propagate the trees vegetatively by ‘air layering’, a technique which involves making a parcel of soil around a branch so that it strikes root and can be cut off and planted.
- He tried cuttings and air layering, with no success, and finally tried grafting it onto a related species from the Big Island.
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