Explain vegetative propagation with the help of two examples. List two advantages of vegetative propagation.

Explain vegetative propagation with the help of two examples. List two advantages of vegetative propagation.

In vegetative propagation, new plants are obtained from the parts of old plants like stems, roots and leaves, without the help of any reproductive organ.
There are two ways of vegetative propagation:
(a) Natural Vegetative Propagation, and
(b) Artificial Vegetative Propagation.
Natural vegetative propagation by leaves: The fleshy leaves of Bryophyllum bear adventitious buds in the notches along the leaf margin.
Grafting: In this method of reproduction, two plants of closely related varieties are joined together so that they live as one plant.
The portion of a plant that is grafted on the other plant is called scion, and the plant in which grafting is performed is called the stock.
This method is applied to improve variety of fruits like mango, apple, peas, citrus and guava.
Advantages of vegetative propagation are:
(i) Vegetative propagation is a cheaper, easier and more rapid method of propagation in plants than growing plants from their seeds.
(ii) Better quality of the plants can be maintained by this method.
-
What is ovulation? How often does it happen in human females ? (b) Where does fertilisation take place in human females? (c) Explain why, fertilisation is possible if mating takes place during the middle of menstrual cycle.
4 years ago
-
What changes are seen in girls at the time of puberty? (b) Name the organs which produce ova (or egg cells) in human females. (c) Draw a labelled diagram of the human female reproductive system.
4 years ago
-
What changes are seen in boys at the time of puberty? (b) Name the organs which produce sperms in human males. (c) Draw a labelled diagram of the human male reproductive system.
4 years ago
-
Draw a neat diagram of a flower showing its various parts. In this diagram mark stem, receptacle, sepals, petals, stamen and carpel. (b) What name is given to (i) all the petals of a flower, and (ii) all the sepals of a flower?
4 years ago
-
What is meant by ‘unisexual flowers’ and ‘bisexual flowers’? Give two examples of each. (b) What is pollination? How does pollination occur?
4 years ago
Currently viewing this topic 1 guest.
- 321 Forums
- 27.3 K Topics
- 53.8 K Posts
- 81 Online
- 12.4 K Members