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प्रश्न
Define vegetative propagation. List its two methods.
उत्तर
Vegetative propagation is a type of asexual reproduction where a new plant is produced from the roots, stem, leaves, and buds of flowers.
Vegetative propagation takes place by the following methods:
-
Through stems − Some plants such as rose propagate through stem cutting. The stem contains nodes on them. A node is the region of a plant from which leaves arise. The piece of stem bearing node is called cutting. When such cuttings are placed in a pot and watered as per requirement, they start giving out roots and leaves. Thus, a new plant can be obtained through stem cutting.
- Through buds − A vegetative bud consists of a short stem around which immature overlapping leaves are present in a folded state. A bud can give rise to a new plant.
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संबंधित प्रश्न
What is multiple fission?
Name the type of asexual reproduction in which two individuals are formed from a single parent and the parental identity is lost. Draw the initial and the final stages of this type of reproduction. State the event with which this reproduction starts.
What is vegetative propagation?
What is a tuber? Name one stem tuber and one root tuber.
Why do green grass plants spring up in dry fields on their own after the rains?
One of the following organisms does not reproduce by fission. This is :
(a) Amoeba
(b) Leishmania
(c) Planaria
(d) Plasmodium
A small part of the shoot of a plant is removed with a sharp knife. When the lower end of this small part of the shoot is buried in moist soil, it gradually develops roots and shoots and grows to become a new plant.
(a) What is the name of this method of propagating plants?
(b) What care should be taken while removing a small part of the shoot from the parent plant with a knife?
(c) Name any two plants which provide us with food directly or indirectly and are grown by this method.
(d) Give one advantage of this method of producing new plants.
(e) State whether it is a sexual method of reproduction or an asexual method. Why?
(f) What special name can be given to the genetically identical new plants produced by this technique?
Write a short note on Bryophyllum.
Why is vegetative propagation practiced for growing some types of plant? List two plants which are grown by this method.
What is micropropagation?
