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Propagation by Layering

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Rural Technology

Layering is a method of propagation by which adventitious roots are caused to form on a stem while it is still attached to the parent plant.

Types of Layering:

1) Tip layering 2) Simple layering 3) Trench layering 4) Compound or serpentine layering 5) Air layering Using sphagnum moss 6) Mound layering

Advantages of Layering:

1) The parent plant supplies the new individual with water and food, particularly carbohydrates and proteins, and hormones, particularly the auxins, until it makes its own food and hormones. 2) Comparatively bigger plant could be obtained through layering. 3) It is possible to avoid mutagenic effects in certain species that happened if propagated by cutting. 4) It is possible to generate few individuals of important species with minimum propagation facilities. 5) It is possible to propagate difficult to root plants vegetatively. Disadvantages of Layering: 1) This method of propagation is limited to plants which form growing points readily. 2) It is difficult to produce large number of plants through this method. In other words, this method does not use propagation material economically. 3) This method is short but time consuming and little difficult in some cases. This method is laborious, cumbersome and expensive.

Intext questions

A Fill in the blanks: 1. medium is used for air layering. 2. Layering is method as compared to cutting. 3. Layering has success as compared to cutting.

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Rural Technology