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easyMCQNEET 20232026Biology
1 mark

Which hormone promotes internode/petiole elongation in deep water rice?

  1. A
  2. B
    Kinetin
  3. C
    Ethylene
  4. D
    2, 4-D

Solution & Step-by-step Explanation

In deep-water rice plants, Ethylene promotes rapid internode and petiole elongation. This allows the leaves and upper parts of the shoot to remain above the rising water level, enabling the plant to continue respiration and photosynthesis.

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Which hormone promotes internode/petiole elongation in deep water rice?
A
B
Kinetin
C
Ethylene
D
2, 4-D

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