Question:

Natural branch grafting to strengthen scaffold limbs of trees is known as

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Remember tree management techniques:
- Bracing: Strengthening weak branches
- Stubbing: Cutting back for new growth
- Top working: Variety change
- Inarching: Repairing damaged trees
- Girdling: Removing bark to promote flowering
- Trellising: Support for climbing plants
Bracing prevents branch breakage in heavy-fruit-bearing trees.
  • Stubbing
  • Bracing
  • Top working
  • Inarching
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The Correct Option is B

Solution and Explanation

Step 1: Understanding the Concept:
This question tests knowledge of tree management techniques.

Step 2: Detailed Explanation:

Bracing is a natural branch grafting technique to strengthen scaffold limbs.
It involves:
- Grafting branches together to provide structural support.
- Uses natural branch fusion to strengthen weak crotches.
- Prevents splitting of branches due to heavy crop load or wind.
Other techniques:
- Stubbing (A): Cutting back large branches to encourage new growth.
- Top working (C): Changing the variety of a tree by grafting new scions.
- Inarching (D): Grafting a bridge between root and stem to repair damage.
Thus, bracing is specifically used to strengthen scaffold limbs.

Step 3: Final Answer:

Thus, natural branch grafting to strengthen scaffold limbs is known as bracing, which corresponds to option (B).
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