Question

Vegetative propagation in potato takes place by
(a) Root
(b) Leaf
(c) Seed
(d) Stem

Answer 1

Hint: Potato is a tuberous fleshy, swollen and rounded structure that has axillary and adventitious branches. It forms underground and consists of nodes and internodes from which the adventitious branches arise and it shows vegetative propagation with the help of buds on stem nodes.

Complete Answer:
Vegetative propagation is a type of asexual reproduction. It takes place to produce new plants without the help of seed and is also shown by those plants which cannot produce seeds. Potato comes under stem tuber and it is also known as the underground stem. Stem tuber consists of corky skin with the presence of lenticels which help in aeration and some depression is also present on the skin which is known as eyes and each eye represents the nodes with some dormant buds. This bud consisting of the eye helps in the vegetative propagation and it is also called seeds which give rise to aerial shoot, stolon and then the formation of tuber takes place.

Additional Information:
The important advantage of vegetative propagation is the characteristic that produced by the new plant is almost similar to the parent plant, therefore the plant that regenerates from the parent plant is called a clone and true breed. It gets affected by the change in temperature but if this change does not take place then it will produce a true breed with every clone.

So, the correct answer is 'Stem'.

Note:
Vegetative propagation is a very effective technique of producing the new plant from the old one by using its parts but the major cons of vegetative propagation are the spreading of infection. Once the plant gets infected especially from the virus it transmits this infection from one plant to another by utilizing their part for vegetative propagation.