Question

Which part of the plant is involved in the vegetative propagation of Dalbergia sissoo?
A. Flower bud
B. Stem cutting
C. Intact root
D. Margin of intact leaf

Answer 1

Hint: The word vegetative propagation refers to asexual reproduction. In vegetative propagation reproduction of new plants take place from the fragment of the parent plant. Vegetative propagation is also called vegetative reproduction.

Complete answer: The main principle of vegetative reproduction is plant propagation which involves reproducing an offspring sexually or asexually from any part of the parent plant like leaves, stem, and roots. Vegetative propagation is a cloning method. Meristematic cells are responsible for vegetative propagation to occur. Asexual reproduction takes place through the division of the meristematic cells. Meristematic cells have the ability to divide continuously and differentiate into different types of cells which leads to the production of plant tissue. Adventitious roots which arise from the part of plants such as stem or leaves are also responsible for vegetative propagation to occur. Vegetative propagation can take place by two types. One is the natural method which includes runners, bulbs, tubers, corms, and suckers. The artificial method of vegetative propagation involves cutting, grafting, layering, suckering, tissue culture, and offset. Plants that arise from the bud present on the base of parent plant roots or stem are called suckers. Dalbergia sissoo is an example of a sucker. It is a large tree with feathery leaves that produce pink flowers.
So, option A is the correct option.

Note: Dalbergia sissoo is also called as North Indian rosewood. Dalbergia sissoo is a native tree of Indian subcontinent.As vegetative propagation does not lead to genetic diversity and leads to accumulation of the deleterious mutations. Vegetative propagation is not evolutionary advantageous.