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Asexual Method of Propagation

The major methods of asexual plant propagation are cuttings, layering, budding, and grafting. Cuttings involve rooting a severed piece of the parent plant. Layering involves rooting a part of the parent plant and then severing it. Budding and grafting involve joining plant parts from different varieties. Common techniques for asexual propagation include cuttings, layering, grafting, micropropagation, runners, and striking or cuttings. Asexual propagation is the best way to maintain some species and clones, which are groups of identical plants that can only be reproduced asexually.

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1K views4 pages

Asexual Method of Propagation

The major methods of asexual plant propagation are cuttings, layering, budding, and grafting. Cuttings involve rooting a severed piece of the parent plant. Layering involves rooting a part of the parent plant and then severing it. Budding and grafting involve joining plant parts from different varieties. Common techniques for asexual propagation include cuttings, layering, grafting, micropropagation, runners, and striking or cuttings. Asexual propagation is the best way to maintain some species and clones, which are groups of identical plants that can only be reproduced asexually.

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Jawad
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© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Asexual method of 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. Humans may utilize these
processes as propagation methods, 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 produce plants that are identical to the parent. Vegetative reproduction uses plants parts such as
roots, stems and leaves. In some plants seeds can be produced without fertilization and the seeds contain only
the genetic material of the parent plant. Therefore, propagation via asexual seeds or apomixis is asexual
reproduction but not vegetative propagation.
Techniques for vegetative propagation include:

 Air or ground layering
 Grafting and bud grafting, widely used in fruit tree propagation
 Micropropagation
 runners
 Striking or cuttings

Asexual propagation, is the best way to maintain some species, particularly an


individual that best represents that species. Clones are groups of plants that are
identical to their one parent and that can only be propagated asexually. The Kieffer
pear and the Peace Rose are two examples of clones that have been asexually
propagated for many years.

The major methods of asexual propagation are cuttings, layering, budding and
grafting. Cuttings involve rooting a severed piece of the parent plant; layering
involves rooting a part of the parent and then severing it; and budding and grafting is
joining two plant parts from different varieties.

Cuttings
Many types of plants, both woody and herbaceous, are frequently propagated by
cuttings. A cutting is a vegetative plant part which is severed from the parent plant in
order to regenerate itself, thereby forming a whole new plant.

Take cuttings with a sharp knife or razor blade to reduce injury to the parent plant.
Dip the cutting tool in rubbing alcohol or a mixture of one part bleach and nine parts
water to prevent transmitting diseases from infected plant parts to healthy ones.
Remove flowers and flower buds from cuttings to allow the cutting to use its energy
and stored carbohydrates for root and shoot formation rather than fruit and seed
production. To hasten rooting, increase the number of roots, or to obtain uniform
rooting except on soft fleshy stems, use a rooting hormone such as Rootone or
Hormondin, preferably one containing a fungicide.

Insert cuttings into a rooting medium such as vermiculite, soil, water or a mixture of
peat and perlite. It is important to choose the correct rooting medium to get optimum
rooting in the shortest time. Moisten the medium before inserting cuttings, and keep it
evenly moist while cuttings are rooting and forming new shoots. Place stem and leaf
cuttings in bright but indirect light. Root cuttings can be kept dark until new shoots
appear.

Layering is a form of asexual (vegetative) propagation. It involves encouraging root


development on a stem while the stem is still attached to the parent plant.

Propagating Plants by Air Layering


Air layering is a propagation method for woody plants that allows you to root branches while
still attached to the parent plant.

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