Vegetative propagation in Bryophyllum primarily occurs through bulbils.
Explanation:
Vegetative Propagation: This is a form of asexual reproduction in plants where new individuals arise from vegetative parts of the plant, such as stems, leaves, or roots, rather than from seeds.
Bryophyllum: This is a genus of succulent plants known for their ability to reproduce vegetatively. One notable species is Bryophyllum daigremontianum, commonly known as the "mother of thousands."
Bulbils: In Bryophyllum, bulbils develop along the edges of the leaves. These bulbils are small, bulb-like structures that can fall off and root in the soil, leading to the growth of new plants. This is a characteristic feature of Bryophyllum and a primary method of propagation for this genus.
Other Options:
Corms: These are swollen underground stems that store nutrients and can give rise to new plants, but they are not the primary means of propagation in Bryophyllum.
Leaf Buds: While Bryophyllum does have the ability to produce new plants from leaf tissue, the specific method of propagation mentioned is through bulbils.
Eyes: This term usually refers to the buds on tubers (like potatoes), which is not applicable in the context of Bryophyllum.
Conclusion:
The correct answer is A. Bulbil. This method allows Bryophyllum to efficiently reproduce and spread in suitable environments.