Question

Q13. Plants like rose, yeast, fungus & spirogyra reproduce by different asexual methods. Discuss in detail about all
the four different modes of reproduction in plants with examples of each method.
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Answer 1

Answer:

DIFFERENT WAYS BY PLANTS REPRODUCT ASEXUALLY ARE -

1. VEGETATIVE PROPOGATION
2. BUDDING
3. FRAGMENTATION

Explanation:

Vegetative Propagation – A new plants are developed from a portion of the main plant ‘s body. It can be reproduced both naturally as well as by the artificial method of vegetative propagation. For example- Onion bulbs are produced natural propagation. Rose and banana plants are produced are artificial methods of propagation.

Budding – In this mode of asexual reproduction new plants grow from an outgrowth or bud in the plant body. yeast is produced by this method of reproduction

Fragmentation –  A new plants are developed from fragments of the parent plant.

Answer 2

Answer:

There are following methods of asexual reproduction:

(a) Budding: This method is used by unicellular plants; like yeast. Yeast is a fungus and fungi are also known as non-green plants. The yeast cell produces a bud which gets its own nucleus. The bud develops to certain size and detaches from the mother cell to produce the new yeast.

(b)Fragmentation: In some simple plants, the plant body is divided into smaller fragments. Each fragment then develops into a new plant. Example: Spirogyra.

(c) Spore Formation: Special spore-bearing organs are present in some plants; especially in fungi and algae. These are called sporangiophores. The sporangiophore bears spores. The spores germinate to develop a new plant.

(d) Vegetative Propagation: When a new plant is developed by a vegetative part; such as root, stem or leaf; it is known as vegetative propagation. For example: when the tuber of potato is cut into several pieces and each piece bears an ‘eye’; each piece produces a new plant. The stems of moneyplant, rose, mango, etc. can produce new plants when they are inserted in soil. The leaf of bryophyllum produces new plants through its notches.

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