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'Plant propagation' is the process of artificially or naturally propagating (distributing or spreading)
plants.
Sexual propagation (seed)
Seeds and
spores can be used for reproduction. Seeds are typically produced from
sexual reproduction within a species, since
genetic recombination has occurred plants grown from seed may have different characteristics to its parents. Some species produce seed that requires special conditions to
germinate like
cold treatment. The seed of many
Australian plants and plants from southern
Africa and the
American west require smoke or fire to germinate. Some plant species, including many
trees do not produce seed until they reach maturity, which may take many years. Seed can be difficult to acquire and some plants do not produce seed at all.
See
germination for fuller discussion.
Asexual propagation
Plants have a number of mechanisms for asexual or
vegetative reproduction. Some of these have been taken advantage of by
horticulturists and gardeners to multiply or
clone plants rapidly. People also use methods that plants do not use, such as
tissue culture and grafting. Plants are produced using material from a single parent and as such there is no exchange of genetic material, therefore vegetative propagation methods almost always produces plants that are identical to the parent. Vegetative reproduction uses vegetative plants parts or roots, stems and leaves. Therefore, propagation via asexual seeds or
apomixis is asexual reproduction but not vegetative propagation.
Techniques for vegetative propagation include:
★ Air or ground
layering
★
Division
★
Grafting and
bud grafting, widely used in
fruit tree propagation
★
Micropropagation
★
Stolons or runners
★
Storage organs such as
bulbs,
corms,
tubers and
rhizomes
★
Striking or cuttings
★
Twin-scaling
References
1. Winterborne J, 2005. ''Hydroponics - Indoor Horticulture'' [1]
External link
★
Ohio State University Extension- Plant propagation
★
Grow'Em Plant Propagation Database
See also
★
Adventitious
★
Clonal colony
★
Fruit tree propagation