Question

Grafting is the union between two plants of closely related varieties. Following are some statements regarding different types of grafting:
(i) An oblique cut followed by a notch is given to both stock and scion.
(ii) Scion is a bud with a small piece of bark and cambium.
(iii) Both stock and scion are of the same diameter.
(iv) The stock has many times more diameter than Scion.
Identify the type of grafting with respect to these statements and select the correct option.
A. (i) can be tongue grafting in which the diameter of stock is larger than that of scion.
B. (ii) can be bud grafting in which stock of monocot and scion of dicot plant are usually united.
C. (iii) can be wedge grafting in which a v-shaped notch is given to stock whereas a wedge -like cut is given to scion.
D. (iv) can be crown grafting in which many stocks are inserted in the slits made in the scions.

Answer 1

Hint: Grafting is a horticultural technique in which tissues of two different plants are joined so they can continue their growth together. The upper part of the combined plant is called the scion while the lower part is called the rootstock.

Complete answer:
To understand this question, first we have to learn about grafting. As we already mentioned, Grafting is a horticultural technique in which tissues of two different plants are joined so they can continue their growth together. The upper part of the combined plant is called the scion while the lower part is called the rootstock. Grafting can be done in many ways depending on the plants.
The 1st statement is an oblique cut followed by a notch is given to both stock and scion. The oblique cut and notch is given in tongue grafting. An oblique cut is given so that they perfectly fit on each other as they are of the same diameter and they are tied together. The 2nd statement is Scion is a bud with a small piece of bark and cambium. This occurs in bud grafting. Bud grafting can be done in dicots only because monocots do not have cambium. The 3rd statement is both stock and scion are of the same diameter. As we already mentioned, tongue grafting stock and scion are of the same diameter. The 4th statement is the stock has many times more diameter than Scion. In crown grafting, many scions are selected and the base is shaped like a wedge. Scions are inserted in the slits and bandaged. The stock has a larger diameter than Scion.
Option A. Is wrong as the diameter of scion and stock is the same in tongue grafting. Option B is wrong, as we already mentioned, bud grafting can be done only in dicots. Option 3 is incorrect because (iii) is tongue grafting.

So, the correct option is D.(iv) can be crown grafting in which many stocks are inserted in the slits made in the scions.

Note:
There are more types of grafting:
Crown graft
Bark Graft
Side-Veneer Graft
Splice Graft
Whip and Tongue Graft
Saddle Graft
Bridge Graft
Inarch Graft.