Vegetative Propagation
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Vegetative Propagation A method of plant propagation( asexual) not through pollination or seeds or spores but by way of separating new plant individuals that emerge from vegetative parts, such as specialized stems, leaves and roots and allow them to take root and grow. . 2 Types.

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Vegetative Propagation

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Vegetative propagation

Vegetative Propagation

A method of plant propagation( asexual) not through pollination or seeds or spores but by way of separating new plant individuals that emerge from vegetative parts, such as specialized stems, leaves and roots and allow them to take root and grow.


Vegetative propagation

2 Types

ARTIFICIAL VS NATURAL

Natural is when nature does it( generally seen in perennial plants), and artificial is with a little help from man.


Vegetative propagation

Natural Propagation includes:

Corms: ( each year more and more corms grow around the original…must be separated or they will choke) gladiolas and crocus

Tubers: ( come from underground stems) potatoes

Stolons: ( horizontally above ground stems with tiny leaves from which new plants grow)

strawberries are an example

Scaly bulbs: ( similar to corms but much larger) onions, garlic, daffodils

Tip layer: arching shoots that ultimately touch-down onto the soil ex. Blackberries

Root sprouts( suckers): The roots of most plants produce cytokinins. As these accumulate in the roots, the cytokinins induce shoot formation. Near the base of the shrub, a new shoot will begin to grow. Ex. Red raspberries and most bushes


Vegetative propagation

Artificial Propagation

Leaf cuttings: clone plants by taking a piece and putting it in water or moist soil

Stem cuttings: faster than leaf cutting. Place stem piece in water and soon it’s sprout and you plant it.

Tissue Culture: designed to make thousands from one small clipping. Clipping is placed into a tissue culture containing nutrients and water. Sprouts quickly.

Grafting/ Budding: both are means of asexual propagation that join different plant parts as one. There are many types and the type depends on the reason for grafting.

Reasons may be: develop a plant with inadequate root systems

stronger stem of one grafted to another for better fruit

or flower production

**** IN THE NAME OF SCIENCE… NEW AND BETTER FRUITS, VEGGIES AND FLOWERS


Vegetative propagation

Table 18.2 Modes of Vegetative reproduction with examples

Mode of Reproduction Specialised plant Examples

part

(A) Natural Methods

(a) Roots :Asparagus,

Sweet potato

(b) Stem :(a) Runner Lawn grass,Sucker Mint, Onion,

(c) Bulb: Onion

(d) Tuber: Potato, Canna

(e) Rhizome :Ginger

(c) Leave Buds: Bryophyllum

(d) Special Parts: Bulbil Oxalis,Pineapple Onion

(B) Artificial Methods

(a) Cutting: Rose, Money Plant

(b) Layering :Jasmine,

(c) Grafting :Grape vine, apple trees

(d) Tissue Culture: Citrus, Mango, Orchids, Chrysanthemum, Asparagus.


Vegetative propagation

Cultivated Plants

A number of commonly cultivated plants are usually propagated by vegetative means rather than by seeds. This is a listing of such plants:

African violets — leaf cuttings

Apple — grafting

Avocado — grafting

Banana — sucker removal

blackberries (Rubusoccidentalis) — stem cuttings

Peach — grafting

Citrus (lemon, orange, grapefruit, Tangerine) — grafting

Date — sucker removal

Fig — stem cuttings

Grapes — stem cuttings, grafting

Hops — stem cuttings

Manioc (cassava) — stem cuttings

Maple — stem cuttings, grafting

Nut crops (walnut, pecan) — grafting

Pineapple — stem cuttings

Pear — grafting

Plum — stem cuttings

Poplar — stem cuttings

Potato — stem (tuber) cuttings

Garden strawberry — runners (stolons)

Sugar cane — stem cuttings

Tea — stem cuttings

Vanilla — stem cuttings

Verbena — stem cuttings

Willow — stem cuttings


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