Test Review- Division, Separation, Layering, Grafting, Budding, Tissue Culture
Budding
A single bud is selected from the scion to insert into the rootstock
whip-and-tongue grafting
Both scion and stock have a slit cut that helps to hold them firmly together when grafting
Division
Cutting a vegetative plant structure into sections to produce new plants
Laminar airflow hoods
Filter bacteria and fungal spores from the air
Corm
Globe-shaped, fleshy underground stem
Tissue Culture
Involves growing small pieces of plant tissue into new plants
Sterile technique
Maintenance of an environment that is free of bacteria and fungi during propagation
Cleft grafting
Method for joining smaller scion to larger stock part
Bark grafting
Method in which the scion is inserted between the bark and wood of the rootstock
Trench Layering
Placing a branch of the parent plant in a shallow trench dug near the plant
Cytokinin
Plant hormone responsible for cell division and differentiation
auxin
Plant hormone that promotes cell elongation and root formation
Separation
Propagating by removing natural structures from the parent plant and planting them to grow new
Mound Layering
Pruning the parent plant to a short stump, then covering it with soil
To promote the formation of bulbets
Purpose of scoring and scooping
Retain moisture
Reason for using compound tape or wax in grafting
Air Layering
Removing a portion of the bark and inducing new roots to develop
Plantlets
Shoots that develop from buds in tissue culture
Bulbs
Short underground stem covered with fleshy leaves
Explants
Small pieces of plant material used in tissue culture
aseptic
Sterile conditions
Agar medium
Sterile gel that may contain nutrients necessary for plant growth
T-Budding
The bud from one plant is inserted into a T-shaped cut through the bark of rootstock
Patch Budding
Thick bark (walnuts and pecans); square cut out of bud removed and "puzzle pieced" into another
Tuber
Underground stem that produces shoots from nodes along the stem
callous tissue
group of plant cells with no particular function; worn area of plant
Plant crown
part of the plant at the soil surface from which new shoots or leaves are produced
Grafting
process of connecting two plant parts to grow as one plant
Scion
short piece of stem with two or more buds used in grafting; becomes the stem of the plant during grafting
stock
the lower portion of a plant used in grafting propagation
Rhizome
underground stem that grows horizontally and produces new roots at nodes
Herbaceous perennials
usually propagated by division or separation
