abscission layer


Also found in: Encyclopedia, Wikipedia.
Related to abscission layer: abscission zone

abscission layer

n
(Botany) a layer of parenchyma cells that is formed at the bases of fruits, flowers, and leaves before abscission. As the parenchyma disintegrates, the organ becomes separated from the plant
Mentioned in ?
References in periodicals archive ?
It is a high yield plant with a complete abscission layer originating from Oryza sativa L.
10cm abscission layer of sand, -made foundation layer of crushed stone hard 0 / 32mm gr.
The abscission layer in Cannabis glandular trichomes is best observed in sifted hashish preparations in which gland heads and gland stalks appear as separate entities with the head cells broken away cleanly at the abscission layer.
This abscission layer is constructed so as to prevent the tree from "bleeding to death'' when the leaves detach from the tree.
These cells start to divide, forming the bottom part of what's called the abscission layer, the seam where the leaf eventually falls off from.
This connecting part has a special name called the abscission layer.
These specimens suggest that such relatively short branches were lost by shedding along a definite abscission layer.
Antlers are shed when a thin layer of tissue called the abscission layer disconnects the antler from the pedicle.
Seed shattering in buckwheat is associated with the presence of an abscission layer across the pedicel (Oba et al.
Instead of deadheading roses by cutting back to the first five-leaflet leaf as standard practice dictates, England's Royal Horticultural Society has found that snapping off the bloom at the abscission layer (where the stem is swollen just beneath the flower) actually produces more new flowering shoots than the old method.
The distal fruit segments usually detach from the proximal fruit segments through an abscission layer and can be dispersed independently from them.