Layering and Division Terms Flashcards
1
Q
Air Layering (Marcottage)
A
- a portion of the above ground stem is girdled and covered with a rooting substrate (sphagnum moss in a polyethylene covering). The girdled portion of the stem roots
- plants propagated by these methods:
- several woody and herbaceous plants, especially tropical plants
- ex: citrus, croton, dracaena, ficus
2
Q
Compound Layering
A
- a type of layering in which the entire horizontal shoot is covered with rooting media
- a branch with numerous nodes is laid horizontally and covered with soil. shoots develop from each node. roots can form on teh new shoots or the buried node
- plants propagaed by these methods:
- several woody shrubs as well as woody and herbaceous vines
- ex: grape, wisteria, pathos
3
Q
Crown Division
A
- a method of propagation in which he crown of a plant (usually an herbaceous perennial) is seprated into parts with stem and rot material attached
4
Q
Drop Layering
A
- a modification of mound layering where the plants are grown in double-stacked containers rather than in the field
- plants propagated by these methods:
- some woody shrubs
- ex: barberry, boxwood, rhododendron
5
Q
Girdling
A
- removing a strip of bark completely around the stem. width is generally 3 to 4 times wider thanthe branch diameter.
- completely removing phloem and cambium
- wounding
6
Q
Layer or Layering
A
- a system of vegetative propagation where stems are rooted while still attached to the source plant
7
Q
Mound Layering
(Stool Layering)
(Stooling)
A
- shoots are cut bac to the ground and soil or rooting substrate (sawdust) is mounded around them to stimulate roots to develop at their bases
- plants propagated by these methods:
- woody trees and shrubs
- especially fruit tree rootstocks
- ex: apple, cherry, quince, mulberry, walnut
8
Q
Pot Layering
A
- a type of air layering
- only instead of useing sphagnum moss in a molyethylene covering, you use a pot with a slit or hole in the side for the branch to go through.
- because not enclosed, at more of a risk of desication.
- but when layer is separated, have an already potted plant!
9
Q
Runner
A
- a natural form of layering in which a specialized stem grows laterally from the crown of the plant and takes root at alternate (or other) nodes to produce a new plant that provides for vegetative expansion of the original plant
- ex: strawberry
10
Q
Serpentine Layering
A
- similar to compound layering except that each alternating node is covered with soil, leaving one node to root and the other node to develop a new shoot above ground
- plants propagated by these methods:
- several woody shrubs as well as woody and herbaceous vines
- ex: grape, wisteria, clematis, philodendron, pathos
11
Q
Simple Layering
A
- an intact shoot is bent to the ground and a single protion of the stem between the base and shoot tip is covered with soil or rooting medium so that adventitious roots form
- plants propagated by these methods:
- numerous tropical and temperate shrubs and some trees
- ex: hazelnut, viburnum, forsythia, brambles
12
Q
Stolon
A
- a specialized underground stem that grows laterally from the crown of the plant to produce either another plant or a tuber
13
Q
Stool Shoots
A
- stooling produces stool shoots, whereas other layering techniques produce ‘layers’
14
Q
Sucker
A
- shoots that develop from undeground roots or shoots. in most cases, these arise from roots
15
Q
Tip Layering
A
- a form of natural layering in which the stem tip of soe species of Rhubus form roots when inserted into the soil
