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Propagation by Grafting and Budding

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Rural Technology

Grafting is an art of insertion of a scion into the stem of the root stock in such a way that union takes place and the combination continues to grow. Budding is a type of grafting. Budding can be defined as an art of insertion of a single mature bud into the stem of the root stock in such a way that the union takes place and the combination continues to grow.

Advantages of grafting and budding :-

• The plants which can not be propagated by other vegetative means viz. cutting, layers, or division can be multiplied, preserved and perpetuated by grafting and budding. • Grafting and budding can be very well adopted to convert inferior plant of established trees into superior one. Variety of the established plant can be changed by top working. • Root stocks influence size and vigour of tree and quality of fruits. • Root stocks impart disease resistance to the scion. • Some root stocks are tolerant to saline and alkaline conditions and high moisture contents of the soil. • Bridge grafting or buttress grafting helps to repair the damaged trunk or roots of the plant. • Special form of plant growth obtained by grafting and budding. • Novelty can be produced in nature by growing several types of flower or fruits on a single stock. • Early induction of flowers and fruits. • Budding and grafting are used for indexing the presence of virus disease. Virus susceptible stocks are used to detect the viruses. These are called indicator plants.

Disadvantages of grafting and Budding:

1) New varieties cannot be developed. 2) These are extensive methods of propagation. They require specialized skill. 3) The life span of grafted and budded plants is short as compared to seed propagated plants. 4) Spread of viral diseases may occur through this method.

Types of Grafting:

A) Scion attached methods – These are the methods of grafting where in the scion is kept attached to the mother plant till the graft union takes place. Ex. Simple approach or Inarching. B) Scion detached methods – These are the grafting methods where in the scion is first detached from mother plant. These methods can be classified as under: 1) Veneer grafting 2) Saddle grafting 3) Wedge grafting 4) Stone grafting 5) Soft wood grafting C) Methods of grafting on established trees- These are the methods which can be successfully adopted to convert the inferior crown of the established plants into the superior or desired crown. These are as under: 1) Side grafting 2) Crown grafting 3) Top working D) Methods of Renovation (Rejuvenation) - These are the grafting methods which are adopted to rejuvenate the old trees having religious feelings or the plants injured deeply due to mechanical operation, pests, diseases at their trunks, root etc. These methods are: 1) Bridge grafting 2) Buttress grafting Advantages of Budding: 1. Budding saves the propagation material. 2. Budding requires lesser equipments and raw material 3. Budding is useful in certain crops in which the grafting is cumbersome. 4. Budding is little bit faster for operation and success. The methods of budding: 1. T-budding or shield budding -Rose 2. Patch budding 3. Forkert budding 4. Flute budding 5. Ring budding 6. Chip budding

Intext questions

A Fill in the blanks: 1. method of grafting is used for repairing injuries of plants. 2. is a example of scion attached method of grafting. 3. In roses method of budding is practiced.


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