Question

Given below are two statements, one is labelled as Assertion (A) and other one labelled as Reason (R).
Assertion (A) : Veneer grafting and stone grafting are by far the best method of vegetative propagation in mango
Reason (R) : Scion stick can be carried to long distances and can keep well for 5-6 days

• A. Both (A) and (R) are correct and (R) is the correct explanation of (A).
• B. Both (A) and (R) are correct but (R) is NOT the correct explanation of (A).
• C. (A) is correct but (R) is not correct.
• D. (A) is not correct but (R) is correct.

Hint:

Defoliating the scion stick on the mother tree 7 to 10 days before grafting triggers bud swelling, which improves graft success.

Answer 1

The Correct Option is A

Step 1: Understanding the Concept:
Vegetative propagation techniques in fruit trees are evaluated based on grafting success rate, labor efficiency, and ease of transporting genetic material.

Step 2: Detailed Explanation:
- Assertion (A) is correct: Veneer and stone grafting are highly efficient, successful, and standardized detached-scion propagation techniques for mango.
- Reason (R) is correct: Unlike traditional inarching (which requires the rootstock to be physically close to the mother tree), detached-scion methods rely on defoliated scion sticks.
These scion sticks can be wrapped in moist material, transported over long distances, and remain viable for 5 to 6 days.
This ease of transport is the primary reason why detached methods have replaced attached grafting.

Step 3: Final Answer:
Both (A) and (R) are correct, and (R) is the correct explanation of (A).