Question

Which of the following options correctly identifies artificial and natural methods of vegetative propagation?
A.Grafting, cutting
B.Layering, bulbils
C.Offset, tissue culture
D.Tubers, rhizomes

Answer 1

Hint: Vegetative propagation is a method of asexual reproduction seen in plant segetative propagation is a method of asexual reproduction seen in plants.

Complete step by step answer:
-Layering is a type of horticultural or artificial method of vegetative propagation wherein the adventitious roots of the plant are allowed/ induced to develop on a soft stem while it is still attached to the plant. This type of artificial propagation is used in strawberry cultivation
-Bulbils are multicellular fleshy buds that originate in the parent plant and take part in natural vegetative propagation, e.g., Oxalis, Agave, pineapple
-Grafting is a technique of artificial vegetative propagation that joins two plants into one. In this process a wound is created on one of the plants and the other plant is inserted into that wound so each plant's tissues can grow together. Most fruit trees today are grafted onto rootstock.

Hence option B is correct.

Additional information:
-Plant cutting is a method of artificial vegetative propagation wherein a piece of a plant that is used in horticulture is placed in a suitable medium such as moist and nutritive soil
-Tissue culture is a method of artificial vegetative propagation wherein the growth of tissues or cells is done in an artificial medium separate from the parent organism. This technique is also called micropropagation. This is typically facilitated via the use of a liquid, semi-solid, or solid growth medium such as agar. Here, a mass of highly meristematic cells known as callus is used.

Note:
A rhizome is a type of plant stem (natural vegetative propagation) situated either at the soil surface or underground that contains nodes from which the roots and the shoots originate. They are unique as they grow perpendicularly, thus permitting new shoots to grow up out of the ground