Question

Layering is used for vegetative propagation of:
A)Rose
B)Jasmine
C)Mango
D)All of the above.

Answer 1

Hint: Layering is a method of vegetative propagation in many plants. In this method, plant propagation takes place by growth of roots in a portion of the aerial stem, which remains attached with the parent plant. After some time, it detaches from the parent plant.

Complete answer:
 Reproduction in some plants is a very simple process and does not involve gamete production or fertilization. New plants originate from parts of the parent plant like leaf, stem or root. Layering is a common method of vegetative propagation in which new plants originate from the stem, which grows to roots of existing plants.

Naturally it happens when a stem touches the ground and it develops new adventitious roots and after some growth, a new plant detaches from the parent plant. Artificially, products which are of economical importance are layered and cultivated at large scale.

Simple layering is more effective when we use it for a cascading or spreading plant like flowers, fruit and foliage. Long stem of the plant is layered to the other pot and the new limb will give a new plant without involvement of seeds and sexual reproduction.

Hence, the correct answer is option (B)

Note: Advantage of this method is the new plant still receives some nutrients from the parent plant and does not become independent suddenly and thus, increase survival rates. Another advantage is that new plants produced are effective clones and thus have exactly the same characters as of their parent plant.