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Which of the following chemical is used to break dormancy of potato?

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Which of the following chemical is used to break dormancy of potato?
1. Urea
2. Agalal
3. Thiourea
4. Aritone
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Correct Answer - Option 3 : Thiourea

The correct answer is Thiourea.

  • Chemicals applied for breaking down the potato nodes dormancy are GA3, thiourea, ethylene, ethyl bromide and carbon disulphide.
  • Thiourea is a catalyse inhibitor, which triggers potato tubers germination and healing tubers injuries.
  • Applying 1% thiourea is recommendable for minitubers dormancy breaking because of its effect on rapid dormancy breaking, rapid emergence and increasing minituber number per plant.
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