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Resource Book on Horticulture Nursery Management

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2.2.3 Vegetative Propagati<strong>on</strong><br />

Vegetative Propagati<strong>on</strong> is the formati<strong>on</strong> of new individuals from the cell(s) of a<br />

single parent. It is very comm<strong>on</strong> in plants; less so in animals.<br />

Importance of Vegetative Propagati<strong>on</strong><br />

When the seed fails to regenerate, vegetative propagati<strong>on</strong> is the <strong>on</strong>ly method for<br />

regenerati<strong>on</strong> in such plants. Vegetative propagati<strong>on</strong> has advantages such as earliness,<br />

uniformity as well as similar phenotypes over seed or sexual regenerati<strong>on</strong>. „True to type‟<br />

is the characteristic of vegetatively propagated populati<strong>on</strong>. Vegetative propagati<strong>on</strong><br />

practices are carried out in propagati<strong>on</strong> structures such as polyhouse, shade net, green<br />

house, mist house, potting shades, tissue culture labs and hardening room have improved<br />

efficacy. Media other than ordinary soil are used for rooting or initial growth of saplings<br />

/seedling etc. <strong>Nursery</strong> soil, finely ground farm yard manures, sphagnum moss, sand,<br />

sawdust, vermiculite; charcoal powder, peat moss, and coco peat are some of the<br />

important media used in nurseries for commercial producti<strong>on</strong> of important horticultural<br />

crops. Many horticultural crops can be propagated by more than <strong>on</strong>e method in such case,<br />

the most effective and ec<strong>on</strong>omic method is to be adopted.<br />

Limitati<strong>on</strong>s of Vegetative Propagati<strong>on</strong><br />

1. Plants like coc<strong>on</strong>ut & arecanut are difficult to propagate vegetatively.<br />

2. Hybridizati<strong>on</strong> is not feasible in vegetative propagated generati<strong>on</strong>s of plants.<br />

3. High skill and time are required in vegetative propagati<strong>on</strong> of plants.<br />

Types of Vegetative Propagati<strong>on</strong><br />

A. Vegetative Propagati<strong>on</strong> by Using Underground Plant Parts<br />

i.e. Root, Corms, Bulbs, Rhizomes, etc.<br />

B. Vegetative Propagati<strong>on</strong> by Using Above Ground Vegetative Plant Parts<br />

1. Vegetative Propagati<strong>on</strong> by buds.<br />

2. Vegetative Propagati<strong>on</strong> by leaves<br />

3. Vegetative Propagati<strong>on</strong> by tissues<br />

4. Vegetative Propagati<strong>on</strong> by cuttings: a. Hardwood cuttings, b. Semi hardwood<br />

cuttings, c. Softwood cuttings, d. Herbaceous plant part<br />

5. Vegetative Propagati<strong>on</strong> by layers: a. Air Layers, b. T<strong>on</strong>gue Layers, c. Ground<br />

Layers, d. Mound Layers, e. Trench Layers.<br />

6. Vegetative Propagati<strong>on</strong> by buds: Patch buds, b. Ring buds, c. Forkert buds, d. „T‟<br />

buds.<br />

7. Vegetative Propagati<strong>on</strong> by grafting: a. Approach grafting, b. St<strong>on</strong>e grafting, c.<br />

Veneer grafting, d. Side grafting<br />

Vegetative Propagati<strong>on</strong> in Plants: Plant organs used for asexual reproducti<strong>on</strong> are,<br />

Stems: In some species, stems (stol<strong>on</strong>s) produce roots at their tips forming a new<br />

plant. The horiz<strong>on</strong>tal above-ground stems (called stol<strong>on</strong>s) of the strawberry produce new<br />

daughter plants at alternate nodes.<br />

<str<strong>on</strong>g>Resource</str<strong>on</strong>g> <str<strong>on</strong>g>Book</str<strong>on</strong>g> <strong>on</strong> <strong>Horticulture</strong> <strong>Nursery</strong> <strong>Management</strong> : 23

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