Correct option is B
The correct answer is (b) Leaf margin
Explanation:
- Vegetative propagation is a form of asexual reproduction where new plants are produced from vegetative parts like roots, stems, or leaves.
- In the plant Bryophyllum, reproduction uniquely takes place through its broad, succulent leaves.
- Specialised buds arise in the notches along the leaf margins.
- When these buds fall on moist soil, they naturally develop root systems and grow into independent new plantlets.
Information Booster:
- Vegetative propagation ensures that the offspring are genetically identical to the parent plant.
- This method allows plants to bypass the seed germination phase, leading to faster growth and maturity.
- Other plants that reproduce via leaves include Begonia.
Additional Knowledge:
Root (Option a)
- Plants like sweet potato and dahlia reproduce vegetatively through their tuberous roots, but Bryophyllum does not.
Stem (Option c)
- Plants like potato (tubers), ginger (rhizomes), and sugarcane primarily propagate vegetatively through stems, not Bryophyllum.
Flower (Option d)
- Flowers are the sexual reproductive organs of a plant, not structures used for vegetative (asexual) propagation.
So the correct answer is (b)