Question:
Identify the vegetative propagule ‘M’ in the following diagram :
Identify the vegetative propagule ‘M’ in the following diagram :
Updated On: Apr 18, 2024
- Rhizome
- Runner
- Bulbil
- Offset
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The Correct Option is D
Solution and Explanation
The runner is a long thin stem that usually grows horizontally along the ground and produces roots and shoots at widely spaced nodes, as in Oxalis, Cynodon (lawn grass), etc.
Offsets are similar to runners. They are also horizontal stems on the ground and give rise to roots and vertical branches at the nodes. These are one internode long runners. The given diagram represents Eichhornia which is an example of an offset. Bulbil is a condensed axillary bud. It acts as a reproductive structure and helps in vegetative reproduction.
Bulbil is seen in Agave.
Rhizomes may be horizontal, oblique or upright stems that grow underground. The stem is differentiated into nodes and internodes. For example, Ginger.
Offsets are similar to runners. They are also horizontal stems on the ground and give rise to roots and vertical branches at the nodes. These are one internode long runners. The given diagram represents Eichhornia which is an example of an offset. Bulbil is a condensed axillary bud. It acts as a reproductive structure and helps in vegetative reproduction.
Bulbil is seen in Agave.
Rhizomes may be horizontal, oblique or upright stems that grow underground. The stem is differentiated into nodes and internodes. For example, Ginger.
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Concepts Used:
Asexual Reproduction
The mode of reproduction in which a new offspring is produced by a single parent is known as asexual reproduction. The new individuals produced are genetically and physically identical to each other, i.e., they are the clones of their parents.
Features of Asexual Reproduction:
- Only single parents are involved.
- The fertilization or gamete formation cannot take place.
- This process of reproduction occurs in a very short time.
- The organisms multiply and grow rapidly.
- In this offspring produced is genetically similar.