Question

Vegetative propagation in Bryophyllum is by:

• A. root
• B. leaf
• C. stem
• D. rhizome

Answer 1

The correct option is B

leaf

The correct option is B:

Explanation of correct option-

1. Plants can be produced by vegetative parts like roots, stems, and leaves.
2. These parts are capable of producing new plants and are called propagules.
3. Leaves of Bryophyllum produce buds in the notches in their margins.
4. When these leaves fall in a moist condition, they grow into a new tiny plant.

Explanation of incorrect option

Option A-

1. Plants can be produced by vegetative parts like roots, stems, and leaves.
2. These parts are capable of producing new plants and are called propagules.
3. New plants grow out of the modified roots called tubers.
4. Example- Sweet potato.

Option C-

1. It has thin, dry, scaly brown leaves.
2. Axillary buds grow out from these nodes and a new plant is produced.
3. Example- Ginger has nodes and internodes.

Option D-

1. The rhizome is a part of vegetative propagation in the plant.
2. It is a rootstalk which is a creeping type.
3. A rhizome is an underground part of the plant that runs horizontally and can produce root and shoot systems in plants.

Final answer: Vegetative propagation in Bryophyllum is by leaf.