It is also known as Chinese layering, Pot layering, Marcottage or Gootee -

The correct answer is  Air Layering.

Explanation:

• Air layering is also known as Chinese layering, Pot layering, Marcottage or Goote.
• Air layering is an ancient method of layering, that originated from China.
• Air layering is commercially used in the propagation of many tropical and subtropical trees and shrubs including litchi, guava, mango, Persian lime, croton, fiscus etc.
•  In Air layering roots develop on an aerial shoot where the stem has been girdled.
• The best rooting medium for air layering is Sphagnum moss as it holds a large amount of water till root initiation and their development.

Fig. Air Layering.

Additional Information

Layering:

• Layering is a process of the development of roots on a stem while it is still attached to the plant.
• The rooted stem is then detached to become a new plant growing on its own roots and that rooted stem is called a Layer.
• It is an asexual method or vegetative method of propagation.

Types of Layering (Apart from Air layering)

1. Simple layering or Tongue layering:

• Simple layering consists of bending an intact shoot to the ground to cause adventitious roots to form.
• These shoots are bent and “pegged down” at a location 15 to 20 cm from the tip forming a “U” shape.
• Bending, twisting, cutting, or girdling at the bottom of the “U” stimulates rooting at that location.

Fig. Simple Layering

2. Compound or Serpentine layering:

• Compound layering is a modification of simple layering in which a one-year-old branch is alternatively covered and exposed along its length.
• Compound layering is an easy plant propagation method but is suitable only for plants producing slender, long, and flexible shoots.
• Muscadine grape is commercially propagated by this method.

Fig. Compound layering.

3. Continuous or Trench layering

• Continuous or Trench layering is the most common method of propagation for woody plants, which produce long vines and are difficult to propagate by other methods of propagation.
• In the continuous layering method, the mother plants are planted at the base of a trench at an angle of 45º in rows spaced 90 cm apart. The long and flexible stems of such plants are pegged down on the ground to form a continuous line of layered plants.

• Walnut and vigorous rootstocks of apple varieties M-16 and M-25 can easily be propagated by trench layering.
• In this method, it is important to establish a permanent row of plants to be propagated.

Fig. Continuous layering.

4. Mound or Stool layering

• The term stooling was first coined by Lynch in 1942 for mound layering.
• Mound layering is a method of propagation in which the shoots/plants are cut back to the ground and soil or rooting medium is mounded around new sprouts/shoots to stimulate roots to develop at their bases.
• The mound layering method is commercially used to propagate apple, pear, quince, currants, gooseberry, and other fruit crops

Fig. Mound Layering.