Question:

The removal of dominated trees in the lower crown classes to favour the growth of the best trees in the lower canopy is called

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Thinning types:
- Advance thinning: Removes dominated lower canopy trees.
- Crown thinning: Removes upper canopy competitors.
- Free thinning: Removes competitors of best trees.
  • Free thinning
  • Advance thinning
  • Crown thinning
  • Ordinary thinning
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The Correct Option is B

Solution and Explanation

Step 1: Understanding the Question:
This question tests knowledge of thinning types.

Step 2: Detailed Explanation:

Advance thinning is the removal of dominated trees in the lower crown classes.
It favours the growth of the best trees in the lower canopy.
Free thinning (A): Removal of trees that compete with the best trees.
Crown thinning (C): Removal of trees in the upper crown.
Ordinary thinning (D): Not a standard term.
Thus, the correct answer is advance thinning.

Step 3: Final Answer:

Thus, the removal of dominated trees is called advance thinning, which corresponds to option (B).
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