Test Review- Division, Separation, Layering, Grafting, Budding, Tissue Culture

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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


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