Question

Artificial vegetative propagation of mango varieties such as Dussheri and Alphanso is carried out through
a.Bud grafting
b.Scion grafting
c.Mound layering
d.Aerial layering

Answer 1

Hint: The artificial method of vegetative propagation is carried out by the humans on the agricultural fields or the scientific laboratory. It is used to produce desirable crops of good quality.

Complete answer:
Let's discuss the above options and find the correct answer:
 -Bud grafting: Grafting is a horticultural technique which is used to join the tissues of the plant body and to continue their growth together. The bud grafting is a type of grafting in which the buds are used in place of twigs. Grafting of roses is the most common example of bud grafting. It also includes the vegetative propagation of mangoes.
-Scion grafting: The scion is the upper part of the combination of grafting while the lower part of grafting is known as rootstalk. This requires the growth of vascular tissues and this type of joining is known as inosculation.
-Mound layering: It is the process of vegetative propagation in which the several woody-stemmed plants are cut down to the ground at the time of early spring. The new shoots that are developed are covered with soil to a depth of about six to eight inches. This type of process is commonly found in the propagation of apples, magnolia etc.
-Aerial layering: In the process of aerial layering the target part is wounded by an upward and the strip of bark is removed. The aerial layering is used in the propagation of large plants such as rubber plants etc.
Hence, the correct answer is bud grafting.

Note: The main motive of grafting is to prepare the injured trees, in the production of small trees and shrubs, resistance to specific disease etc. The grafting results in the change of both the RNA and DNA between the grafting partner.