In the context of grafting, what is the primary function of the 'cambium layer' in ensuring a successful graft union?

Which type of layering involves girdling a portion of a stem while it is still attached to the mother plant, applying rooting medium, and then covering it to promote root development?

Identify the correct sequence of events in a typical micropropagation process (plant tissue culture):
i. Hardening of plantlets
ii. Explant preparation and sterilization
iii. Inoculation in multiplication medium
iv. Rooting of shoots

The term 'budding' in horticulture primarily refers to a grafting technique where:

Which of the following statements is TRUE regarding the use of specialized plant parts for propagation?

Consider the following statements about 'T-budding':
1. It is a common budding method for fruit trees like citrus and roses.
2. It requires actively growing rootstock with easily separable bark.
3. The bud shield used typically includes a piece of wood attached to the bud.
Which of the statements given above are correct?

Which of the following propagation methods is most suitable for plants that produce stolons or runners, such as strawberries?

Match the following propagation terms with their descriptions:

Term	Description
A. Scion	1. The upper part of a graft that develops into the shoot system.
B. Rootstock	2. The lower part of a graft that forms the root system.
C. Explant	3. A small piece of plant tissue used to initiate a tissue culture.
D. Callus	4. Undifferentiated mass of cells formed in tissue culture or at graft union.

Which of the following combinations is correctly matched?

The use of mist chambers or fog systems in nurseries is primarily aimed at improving the success rate of which propagation method?

What is the main advantage of using clonal propagation methods (like grafting, cuttings, tissue culture) over sexual propagation (seeds)?

Which of the following statements best describes the process of 'nurse grafting'?

Which type of cutting relies on the stored food reserves in its base for initial root and shoot development, often used for deciduous plants in late dormant season?

In tissue culture, what is the primary role of agar in the culture medium?

Which of the following layering methods is particularly effective for propagating plants with stiff, upright branches that are difficult to bend to the ground?

Statement I: Bench grafting is a common technique where grafting is performed indoors during the dormant season.
Statement II: Whip-and-tongue grafting is often used for bench grafting due to its strong union.
Regarding the above statements, choose the correct option:

When propagating plants using specialized parts, which of these is an example of a modified underground stem that grows horizontally and produces new plants from its nodes, such as ginger?

Which of the following is a common challenge associated with large-scale tissue culture propagation?

Match the following types of cuttings with their appropriate description:

Cutting Type	Description
A. Leaf cutting	1. Uses a section of stem with one or more nodes.
B. Leaf-bud cutting	2. Uses a whole leaf blade, often without a petiole.
C. Stem cutting	3. Uses a leaf blade, petiole, and a piece of stem with an axillary bud.
D. Root cutting	4. Uses a section of root to produce new shoots.

Which of the following pairs are correctly matched?

What is the primary purpose of 'double working' in grafting?

Which of the following techniques is NOT a type of layering?

A major disadvantage of using softwood cuttings for propagation is their:

Which of the following describes the 'explant' used in plant tissue culture?

Consider the following statements about 'chip budding':
1. It can be performed when the bark is not slipping easily.
2. It involves removing a rectangular piece of bark and wood from the rootstock.
3. It is often used for grapes and fruit trees with thinner bark.
Which of the statements given above are correct?

When propagating plants by stem cutting, the presence of which part is absolutely essential for successful regeneration?