Plant Growth Regulators · NCERT Biology

Spraying sugarcane crops with which hormone can increase the yield by as much as 20 tonnes per acre?

  1. Auxin hormone
  2. Cytokinin hormone
  3. Gibberellin hormone
  4. Ethylene hormone
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Correct answer: Gibberellin hormone

Sugarcane stores carbohydrates as sugar in their stems. Spraying the crop with gibberellins increases the length of the stem, thus increasing the yield.

Difficulty: Medium Question 19 of 20

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